https://wiki.seloc.org/api.php?action=feedcontributions&feedformat=atom&user=Tom+B 2026-04-06T22:47:45Z User contributions MediaWiki 1.45.3 https://wiki.seloc.org/index.php?title=Children&diff=13568 2022-08-14T20:44:59Z

<p>Tom B: Added Cybex Solution Z</p> <hr /> <div>==== Children in a Lotus ====<br /> <br /> Having a kid does not necessary mean the end of Lotus ownership. Many owners have kids and regularly take them out in the Lotus. <br /> <br /> There are many makes of seats for all ages that fit the Elise, although none of the factory fitted seats have IsoFix fitments so child seats must be belt fitted. <br /> <br /> There's a vast choice of child seats available and also a lot of variations in the Elise seat design/padding over the years the car has been manufactured - so try before you buy.<br /> <br /> ==== Child Seat Safety Law ====<br /> Whatever you buy make sure it complies with the up-to-date Child Seat Safety Law<br /> http://www.thinkroadsafety.gov.uk/campaigns/childcarseats/childcarseats.htm<br /> <br /> ==== Child Seat Types ====<br /> http://www.childcarseats.org.uk/types/index.htm<br /> <br /> The following seats have been found to fit various Elise/Exige seats and provide a good starting point for the test fitting trip to Halfords or Mothercare.<br /> <br /> ==== Baby Seats - Group 0 (-9 months) ====<br /> *Maxicosi Cabrio<br /> *Brittax rockatot<br /> *Mamas and Papas Primo Viaggio SIP (without base)<br /> *Jane Travel System car seat - group 0+ ( to 13kg, -18 months)<br /> [[Image:P1030003.JPG]]<br /> Jane Travel System car seat<br /> <br /> ==== Child Seats Group 1 (9 months - 4 years) ====<br /> *Maxicosi Priory (Note, not S2 Exige Touring with probax, seat very wobbly)<br /> *Britax Duo plus<br /> *Britax Prince (S1 Exige with motorsport seats)<br /> *Maxicosi Tobi (Fits S2 Exige Touring with probax superbly) 2009 model fits VX220 with cloth seats &quot;better than any seat/car combo&quot; the shop folks have ever seen. Also a great fit for Recaro front seats in the Evora.<br /> *Mama and Papas Pro-Tec (Fits brilliantly in an S1 with cloth seats)<br /> *Romer - Eclipse (Fits a standard S1 seat nicely).<br /> *Britax Evolva123 (Groups 1,2&amp;3)- suitable for the rear seats in the Evora (Base too wide for standard S1/S2 seats)<br /> *[http://www.kiddy.de/en/car-seats/9months-4years/kiddy-phoenixfix-pro-2.html Kiddy Phoenixfix Pro 2] (S2/S3 Elise with standard Probax seats; S2 with non-Probax seats)<br /> ====REAR FACING SEATS==========<br /> *Britax Hi Way II (Elise S2)<br /> <br /> ==== Child Booster Seats Group 2 &amp; 3 (4 years - 11 years)====<br /> *Britax Hi-Liner<br /> *Halfords Michelangelo<br /> *Britax Adventure<br /> *Recaro Milano<br /> *Cybex Solution X-Fix (Elise S2 non-probax)<br /> *Britax Romer KIDFIX XP Group 2/3 ISOFIX Car Seat (two of them fit the rear of an Evora with seats taken out)<br /> *Britax Römer Kid II, very good fit with probax Exige seats, see below<br /> [[File:Britax_IMG_20191109_104211.jpg]]<br /> *Cybex Solution S-Fix fits perfectly in an S3 Elise with standard seats and would do the same in an Exige. If you're putting an ISOFIX Cybex into the car just push the arms back into the seat and use a rolled up tea towel to stop anything marking the back of the seat base. I think all forward facing Cybex<br /> *Cybex Solution-Z: Good fit in an S1 111S, as with the Solution-S above, the ISOFIX connectors fold into the base of the seat.<br /> <br /> ==== Push Chair/Buggies ====<br /> You can even get a push chair to fit in the boot of the Elise!<br /> <br /> '''Quinny Zapp'''<br /> <br /> The Quinny Zapp is used by a few owners, and it can also take the Maxicosi Cabrio seat. The Zapp is a tried and tested fit in the boot of an S2 Exige S too, without even removing the wheels (the pushchair's, not the car's!)<br /> <br /> [[Image:QuinnyIn.JPG]][[Image:QuinnyOut.JPG]]<br /> <br /> <br /> '''Petite Star Zia'''<br /> <br /> The Petite Star Zia is a similar design and fits in the boot of an Elise S2. It also reclines and has a basket underneath, and has a slight price advantage.<br /> <br /> [[Image:ZiaInS2.jpg]]<br /> <br /> <br /> '''Quinny Yezz'''<br /> <br /> A new kid on the block, The Quinny Yezz, even smaller than the Zapp!!<br /> <br /> I was given one by Quinny as a fathers day present to review in a mans point of view, obviously I tried it in my S1 boot, it fitted with ease and with room to spare. It even fits in the passenger side footwell.<br /> <br /> [http://www.lexiconpr.net/dorel/steveyezzreview2.pdf]<br /> <br /> [[Image:yezzandlotus.jpg]]<br /> [[Image:Yezzinboot.jpg]]<br /> <br /> [[Category:Lotus Elise]]<br /> [[Category:S1]]<br /> [[Category:S2]]<br /> [[Category:Lotus Europa]]<br /> [[Category: Safety]]<br /> [[Category:Lotus Evora]]</div>

Tom B https://wiki.seloc.org/index.php?title=Front_splitter&diff=4075 2006-12-05T00:28:41Z

<p>Tom B: </p> <hr /> <div>[[Image:Front splitter.jpg|thumb|left|Front splitter on a S2 Elise]]<br /> In its most basic form a splitter is a horizontal extension of the lower front edge of the car protruding forwards into the airflow. Although this looks simple, it is a very efficient way to generate downforce at the front of the car.<br /> <br /> As a car passes though the air, an area of high pressure builds up along its relatively flat leading surfaces (think of the force which pushes on your hand if you hold it out of the car window). Usually this air flows either under the car or around and over the bodywork. A splitter taps this area of high pressure by providing an additional surface for it to act on. As well as pushing back on the front of the car, the high pressure pushes down on the top surface of the splitter creating downforce.<br /> {{clr}}<br /> [[Image:splitter.jpg|thumb|left|A simple diagram showing air pressures with and without a splitter]]<br /> <br /> {{clr}}<br /> <br /> I hit almost every speed bump with it at standard ride height, but the roads near me are terrible, so no fault of the splitter. If you are running a lowered ride height - as I am doing now, it will further lower the front by nearly 20 mm in real terms. Looks cool though and is very similar to the reverie one only fibreglass and much better value. <br /> <br /> * On the Elise expect around a 10/15 mm drop in clearance.<br /> * 40Kg downforce at 100mph.<br /> <br /> It is possible to [[how to fit a front splitter|fit a front splitter]] yourself.<br /> <br /> == Damage concealer ==<br /> [[Image:front splitter damage concealer.jpg|thumb|left|Cover up that damaged front clamshell]]<br /> Another application for the front splitter is to conceal damaged front clamshells. It is far easier to have one of these install than pay for a fix/respray at your [[Lotus_specialists|local specialist]].<br /> {{clr}}<br /> <br /> == Suppliers ==<br /> === Tigga! ===<br /> Fellow SELOC member [http://forums.seloc.org/member.php?action=viewpro&amp;member=Tigga%21 Tigga!] supplies a splitter for the Elise S2.<br /> * http://forums.seloc.org/viewthread.php?tid=74329<br /> === Alvans ===<br /> Alvan Motors make a splitter for the S2 which does not reduce the overall ground clearence.<br /> * http://www.alvan-motors.com/<br /> === Eliseparts ===<br /> * http://www.eliseparts.com<br /> === Reverie ===<br /> * http://www.reverie.ltd.uk<br /> === Elise Shop ===<br /> * http://www.elise-shop.com/index.php?main_page=product_info&amp;cPath=6&amp;products_id=247<br /> === Lotus Power ===<br /> * http://www.lotuspower.co.uk/<br /> <br /> &lt;gallery&gt;<br /> Image:front splitter tigga.jpg|Tigga!<br /> Image:front splitter alvans.jpg|Alvan<br /> &lt;/gallery&gt;<br /> <br /> [[Category:Aerodynamics]]</div>

Tom B https://wiki.seloc.org/index.php?title=File:Splitter.jpg&diff=4074 2006-12-05T00:25:27Z

<p>Tom B: A simple diagram of a splitter.</p> <hr /> <div>A simple diagram of a splitter.</div>

Tom B https://wiki.seloc.org/index.php?title=Front_splitter&diff=4073 2006-12-05T00:23:52Z

<p>Tom B: Corrected splitter description</p> <hr /> <div>[[Image:Front splitter.jpg|thumb|left|Front splitter on a S2 Elise]]<br /> In its most basic form a splitter is a horizontal extension of the lower front edge of the car protruding forwards into the airflow. Although this looks simple, it is a very efficient way to generate downforce at the front of the car.<br /> <br /> As a car passes though the air, an area of high pressure builds up along its relatively flat leading surfaces (think of the force which pushes on your hand if you hold it out of the car window). Usually this air flows either under the car or around and over the bodywork. A splitter taps this area of high pressure by providing an additional surface for it to act on. As well as pushing back on the front of the car, the high pressure pushes down on the top surface of the splitter creating downforce.<br /> <br /> <br /> <br /> {{clr}}<br /> <br /> I hit almost every speed bump with it at standard ride height, but the roads near me are terrible, so no fault of the splitter. If you are running a lowered ride height - as I am doing now, it will further lower the front by nearly 20 mm in real terms. Looks cool though and is very similar to the reverie one only fibreglass and much better value. <br /> <br /> * On the Elise expect around a 10/15 mm drop in clearance.<br /> * 40Kg downforce at 100mph.<br /> <br /> It is possible to [[how to fit a front splitter|fit a front splitter]] yourself.<br /> <br /> == Damage concealer ==<br /> [[Image:front splitter damage concealer.jpg|thumb|left|Cover up that damaged front clamshell]]<br /> Another application for the front splitter is to conceal damaged front clamshells. It is far easier to have one of these install than pay for a fix/respray at your [[Lotus_specialists|local specialist]].<br /> {{clr}}<br /> <br /> == Suppliers ==<br /> === Tigga! ===<br /> Fellow SELOC member [http://forums.seloc.org/member.php?action=viewpro&amp;member=Tigga%21 Tigga!] supplies a splitter for the Elise S2.<br /> * http://forums.seloc.org/viewthread.php?tid=74329<br /> === Alvans ===<br /> Alvan Motors make a splitter for the S2 which does not reduce the overall ground clearence.<br /> * http://www.alvan-motors.com/<br /> === Eliseparts ===<br /> * http://www.eliseparts.com<br /> === Reverie ===<br /> * http://www.reverie.ltd.uk<br /> === Elise Shop ===<br /> * http://www.elise-shop.com/index.php?main_page=product_info&amp;cPath=6&amp;products_id=247<br /> === Lotus Power ===<br /> * http://www.lotuspower.co.uk/<br /> <br /> &lt;gallery&gt;<br /> Image:front splitter tigga.jpg|Tigga!<br /> Image:front splitter alvans.jpg|Alvan<br /> &lt;/gallery&gt;<br /> <br /> [[Category:Aerodynamics]]</div>

Tom B https://wiki.seloc.org/index.php?title=Brake_discs&diff=3321 2006-08-29T22:58:59Z

<p>Tom B: /* Standard cast iron */</p> <hr /> <div>==Lotus OEM Fitment==<br /> ===S1 Elise===<br /> ====MMC====<br /> When originally conceived and released, the Elise was supplied with Metal Matrix Composite (MMC) brake discs in combination with specific MMC brake pads. In general it is agreed that an MMC brake setup provides excellent brake performance and feel. The only real complaint seems to be that in wet weather the initial bite and performance is poor until the discs are dried by application. (From VIN 2260 a splash guard was introduced to reduce this problem - Source [http://www.elises.co.uk elises.co.uk])<br /> <br /> MMC's differ from normal 'iron' discs in that the friction generated is mostly Adherent Friction rather than abrasive friction (a very good article on the nature of braking can be found [http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml here]). Essentially when the disc and pad come in contact some of the pad material transfers onto the disc surface, meaning the contact patches between the two are effectively the same material. As the disc rotates the bonds between the surfaces break and reform creating friction.<br /> <br /> One of the benefits of Adherent Friction is that under normal use the discs last a very very long time. When braking the pads transfer their material to the surface of the disc, and it is this layer that is broken down, not the disc suface. Therefore the discs suffer very little wear. Under very heavy use however, the bonds between the pad and disc cannot reform as fast as they are broken down, meaning areas of the disc can loose the material layer entirely. When this happens the abrasive friction of the pad can score away the disc surface making it too rough to rebuild the original material layer. If this happens braking performance from the disc is permanently damaged and the disc must be replaced. For this reason car used on track or running semi-slick tyres may wish to use traditional setups.<br /> <br /> MMC discs were also extremely light, reducing the unsprung weight of each wheel.<br /> <br /> MMC brake systems were supplied up until VIN 3714, when increased part costs forced Lotus to introduce standard iron brake discs. Recently Lotus have had trouble sourcing replacement pads, and have offered discounted conversions to iron discs for affected customers. Third party replacement pads are available from [http://www.eliseparts.com Elise Parts] and [http://www.elise-shop.com Elise Shop]. These alternative pads are also said to improve wet weather performance. MMC discs are no longer available.<br /> <br /> <br /> ====Standard cast iron====<br /> These discs followed the MMC disc as the standard brake disc for the S1 Elise from VIN 3715.<br /> <br /> Although introduced for cost reasons, Iron disks are better able to withstand the high temperatures associated with track driving and provide better wet weather performance than the previous MMC disks.<br /> <br /> The surface of the disks are solid, however they are internally vented to aid cooling. As the disk rotates at speed, centrifugal forces act on the air inside the vanes, forcing it outwards from the center. This action then draws fresh, cooler, air from the center of the disc through the internal vanes and out through the holes in the edges.<br /> extremely light, reducing the unsprung weight of each wheel.<br /> (Lotus Part Number: A111J0128F)<br /> <br /> [[Image:A111J0128F.JPG|thumb|left|Vented S1 OEM Disc]]<br /> {{clr}}<br /> <br /> ====Cross drilled====<br /> The Sport 135, Sport 160, Sport 190 and 111S models were supplied with iron disks which were vented and cross drilled. Cross drilling is the name given to drilling holes through the disc. This has a number of advantages:<br /> * The holes allow for better cooling by drawing more air into the internal vanes.<br /> * The edges of the holes clean pad surface which can provide increased brake 'bite'.<br /> * The holes prevent gasses from collecting between the pad and disc surface<br /> * The holes reduce the weight of the disk, and therefore its inertia and the unsprung weight.<br /> <br /> (Lotus Part Number: A111J0141F)<br /> <br /> [[Image:A111J0141F.JPG|thumb|left|Cross drilled and Vented S1 Disc]]<br /> {{clr}}<br /> <br /> <br /> ===S1 Exige, 340R===<br /> The Lotus Series 1 Exige and 340R, were fitted with the same cross drilled disks as seen on the Series 1 111s and Sport 160 editions described above. <br /> (Lotus Part Number:A111J0141F)<br /> <br /> <br /> ===S2 Elise and Exige===<br /> Series 2 Elises are fitted with 288mm vented iron discs. <br /> <br /> The discs on the S2 are different to those one the S1. This is due to the S1 iron discs being a copy of the original MMC discs and therefore an uncoventional size. S2's were shipped as standard with plain discs, with cross drilled versions being available as an option. Later S2's were shipped with the cross drilled discs as standard.<br /> <br /> The S2 discs feature longer, curved internal flow passages which increase the disc stability and reduce hot spot formation. The revised hole pattern has been specified to complement the new vane arrangement. <br /> <br /> The discs are not handed, so the same disc is used on the right and left hand sides of the car. The cooling air flow through the left and right discs is identical and the flow rate is purely a result of pressure differential between the centre of the disc and its rim; the shape of the vanes and the direction of rotation does not affect the flow rate significantly. <br /> <br /> Some noise from the brakes themselves is to be expected but there is a fix to stop brake pads banging in the calipers.<br /> <br /> ===Vauxhall VX220/Opel Speedster===<br /> <br /> VX/Speedster discs are also 288mm as on the S2, but there are some differences:<br /> <br /> * hubs are 5 stud<br /> * use a bigger center bore<br /> * use a slightly different offset (about 1 to 2mm) because the VX220 uses a different bearing pack. (uprights are identical to the S2 though)<br /> * are almost the same thickness as S2 discs (25mm vs. 26mm), but have a much thicker surface and as a result a much smaller air-gap between the disc surfaces.<br /> <br /> The last point makes the VX220 discs significantly heavier than S2 discs (around 750G to 1 Kg each).<br /> <br /> The thicker surface should give them a little more heat capacity, but also makes it more difficult for them to shed the heat again.<br /> <br /> VX220 discs are actually taken from existing GM cars (Vauxhall/SAAB), eg. Vauxhall Vectra V6 2.5 front discs, and as such they can be obtain from many regular car-parts stores are very low prices.<br /> <br /> ==Lotus Europa Disc Brakes==<br /> <br /> 288mm Vented Discs with [http://en.wikipedia.org/wiki/Anti-lock_braking_system ABS] <br /> <br /> This is currently unconfirmed - Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ==Elise Upgrade Options==<br /> <br /> <br /> ===Lotus Motorsport===<br /> <br /> <br /> ====Lotus Motorsport Brake Bias Valve====<br /> Lotus Motorsport Brake Bias Valve, as used on the Elise S2 Sport 190 and VX220 Sprint. This allow the front/rear brake balance to be adjusted.<br /> (Lotus Part Number:ALS1J6012F) <br /> [[Image:ALS1J6002_3F.JPG|thumb|left|Lotus Motorsport AP 4 Pot Calipers ]]<br /> [[Image:brakebias.JPG|thumb|left|Lotus Motorsport Brake Bias Valve]]<br /> {{Clr}} <br /> <br /> <br /> ====Lotus Motorsport Brake Master Cylinder====<br /> (Lotus Part Number:ALS1J6010F)<br /> Content to be added! Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ====Lotus Offical upgrade kit for the S2====<br /> Lotus Motorsport supplied bolt on kit that comes with 2 x AP 4 pot alloy calipers with Pagid RS14 Pads and 2 x alloy bells with discs.<br /> (Lotus Part Number:ALS3J0040F)<br /> <br /> From Lotus Motorsport:<br /> <br /> Fittings are also included.<br /> Track Use Only<br /> <br /> The pads are 16mm thick with an area of 43.2cm2 and are Pagid RS14 ceramic friction material.<br /> <br /> They are full race pads with a medium to high friction value.<br /> <br /> The discs are 310mm outside diameter and 28mm thick and weigh 4.9kg <br /> <br /> The Caliper is a 2 piece aluminium alloy body with 38.10mm diameter piston bores. Weight is 2.3kg<br /> <br /> Designed to fit the following cars using a 16inch Front wheel:<br /> <br /> - Elise S2 (with OZ wheels + 3mm spacer) <br /> - Elise 111R - with Exige S2/Forged Alloy wheels <br /> - Exige S2 - direct fitment<br /> <br /> This kit will not fit Elise S1 or Exige S1. <br /> <br /> Lotus recommend use with braided brake hoses <br /> <br /> Lotus Part Number:ALS3J0040F <br /> <br /> Price £1,762.50 inc VAT<br /> <br /> [[Image:brakeupgrade1.JPG|thumb|left|Upgrade Caliper and Discs]][[Image:brakeupgrade2.JPG|thumb|left|Upgrade bolts]][[Image:brakeupgrade3.JPG|thumb|left|Upgrade Pads]] [[Image:APBigBrakeCaliper.jpg|thumb|left|Upgrade Caliper]][[Image:APBigBrakeCaliper2.jpg|thumb|left|Upgrade Caliper and Disc]]<br /> {{Clr}}<br /> <br /> ===EliseParts.com===<br /> [http://www.eliseparts.com/shop/index.php?main_page=index&amp;cPath=157&amp;zenid=a2860acbb2e0d419982d9d1196ced354 Elise Parts]<br /> Content to be added! Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ===Plans Motorsport===<br /> [http://www.plansmotorsport.com/showroom/components/ Plans Motorsports]<br /> Content to be added! Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ===EBC===<br /> Content to be added! Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ===HiSpec Motorsport===<br /> [http://www.hispecmotorsport.co.uk/lotus.htm HiSpec Motorsport]<br /> Content to be added! Press the 'Edit' link to add your knowledge!<br /> <br /> ==Common Questions==<br /> <br /> ===Pads sticking to the disc===<br /> <br /> The unservoed brakes on the S1 were criticised for not having enough initial bite when first applied, so Lotus used higher &quot;grab&quot; pads on the S2 to improve this. A byproduct of these pads is they tend to stick to the disc over a period of time, in damp or humid conditions this can happen within a couple of hours. This is something that affects the S1 as well but not to the same extent. Normally the stiction is limited to a clunk on pulling away, but with wet weather or if the car has recently been washed, the stciking can be quite severe. This however is not a problem its just Something you just need to be aware of, it is also just another case of [http://wiki.seloc.org/index.php/TADTS TADTS]<br /> <br /> <br /> ==Other sources of information==<br /> [http://en.wikipedia.org/wiki/Disk_brake Wikipedia on Disc Brakes]<br /> <br /> [http://www.elises.co.uk/components/s1/brakes/index.html Elises.co.uk on S1 Disc Brakes]<br /> <br /> [http://www.elises.co.uk/components/s2/brakes/index.html Elises.co.uk on S2 Disc Brakes]<br /> <br /> [http://www.hubert.racegame.org/brakes.html HubSpace.net on Disc Brakes]<br /> <br /> The &quot;Warped&quot; Brake Disc and Other Myths of the Braking System by Carroll Smith: http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[Category:Brakes]]</div>

Tom B https://wiki.seloc.org/index.php?title=Brake_discs&diff=2818 2006-08-18T23:23:05Z

<p>Tom B: </p> <hr /> <div>==Lotus OEM Fitment==<br /> ===S1 Elise===<br /> ====MMC====<br /> When originally conceived and released, the Elise was supplied with Metal Matrix Composite (MMC) brake discs in combination with specific MMC brake pads. In general it is agreed that an MMC brake setup provides excellent brake performance and feel. The only real complaint seems to be that in wet weather the initial bite and performance is poor until the discs are dried by application. (From VIN 2260 a splash guard was introduced to reduce this problem - Source [http://www.elises.co.uk elises.co.uk])<br /> <br /> MMC's differ from normal 'iron' discs in that the friction generated is mostly Adherent Friction rather than abrasive friction (a very good article on the nature of braking can be found [http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml here]). Essentially when the disc and pad come in contact some of the pad material transfers onto the disc surface, meaning the contact patches between the two are effectively the same material. As the disc rotates the bonds between the surfaces break and reform creating friction.<br /> <br /> One of the benefits of Adherent Friction is that under normal use the discs last a very very long time. When braking the pads transfer their material to the surface of the disc, and it is this layer that is broken down, not the disc suface. Therefore the discs suffer very little wear. Under very heavy use however, the bonds between the pad and disc cannot reform as fast as they are broken down, meaning areas of the disc can loose the material layer entirely. When this happens the abrasive friction of the pad can score away the disc surface making it too rough to rebuild the original material layer. If this happens braking performance from the disc is permanently damaged and the disc must be replaced. For this reason car used on track or running semi-slick tyres may wish to use traditional setups.<br /> <br /> MMC discs were also extremely light, reducing the unsprung weight of each wheel.<br /> <br /> MMC brake systems were supplied up until VIN 3714, when increased part costs forced Lotus to introduce standard iron brake discs. Recently Lotus have had trouble sourcing replacement pads, and have offered discounted conversions to iron discs for affected customers. Third party replacement pads are available from [http://www.eliseparts.com Elise Parts] and [http://www.elise-shop.com Elise Shop]. These alternative pads are also said to improve wet weather performance. MMC discs are no longer available.<br /> <br /> <br /> ====Standard cast iron====<br /> These discs followed the MMC disc as the standard brake disc for the S1 Elise from VIN 3715.<br /> <br /> Although introduced for cost reasons, Iron disks are better able to withstand the high temperatures associated with track driving and provide better wet weather performance than the previous MMC disks.<br /> <br /> The surface of the disks are solid, however they are internally vented to aid cooling. As the disk rotates at speed, centrifugal forces act on the air inside the vanes, forcing it outwards from the center. This action then draws fresh, cooler, air from the center of the disc through the internal vanes and out through the holes in the edges.<br /> extremely light, reducing the unsprung weight of each wheel.<br /> (Lotus Part Number: A111J0128F)<br /> <br /> [[Image:A111J0128F.JPG|thumb|left|Vented S1 OEM Disc]]<br /> {{clr}}<br /> <br /> <br /> ====Cross drilled====<br /> The Sport 135, Sport 160, Sport 190 and 111S models were supplied with iron disks which were vented and cross drilled. Cross drilling is the name given to drilling holes through the disc. This has a number of advantages:<br /> * The holes allow for better cooling by drawing more air into the internal vanes.<br /> * The edges of the holes clean pad surface which can provide increased brake 'bite'.<br /> * The holes prevent gasses from collecting between the pad and disc surface<br /> * The holes reduce the weight of the disk, and therefore its inertia and the unsprung weight.<br /> <br /> (Lotus Part Number: A111J0141F)<br /> <br /> [[Image:A111J0141F.JPG|thumb|left|Cross drilled and Vented S1 Disc]]<br /> {{clr}}<br /> <br /> <br /> ===S1 Exige, 340R===<br /> The Lotus Series 1 Exige and 340R, were fitted with the same cross drilled disks as seen on the Series 1 111s and Sport 160 editions described above. <br /> (Lotus Part Number:A111J0141F)<br /> <br /> <br /> ===S2 Elise and Exige===<br /> Series 2 Elises are fitted with 288mm vented iron discs. <br /> <br /> The disks on the S2 are different to those one the S1. This is due to the S1 iron disks being a copy of the original MMC disks and therefore an uncoventional size. S2's were shipped as standard with plain disks, with cross drilled versions being available as an option. Later S2's were shipped with the cross drilled disks as standard.<br /> <br /> The S2 discs feature longer, curved internal flow passages which increase the disc stability and reduce hot spot formation. The revised hole pattern has been specified to complement the new vane arrangement. <br /> <br /> The discs are not handed, so the same disc is used on the right and left hand sides of the car. The cooling air flow through the left and right discs is identical and the flow rate is purely a result of pressure differential between the centre of the disc and its rim; the shape of the vanes and the direction of rotation does not affect the flow rate significantly. <br /> <br /> Some noise from the brakes themselves is to be expected but there is a fix to stop brake pads banging in the callipers.<br /> <br /> <br /> ===Vaxuall VX200===<br /> Content yet to be added! Are the VX disks the same as the S1/S2? Press the 'Edit' link to add your knowledge!<br /> <br /> <br /> ==Lotus Europa Disc Brakes==<br /> <br /> 288mm Vented Discs with [http://en.wikipedia.org/wiki/Anti-lock_braking_system ABS] <br /> <br /> This is currently unconfirmed - Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ==Elise Upgrade Options==<br /> <br /> <br /> ===Lotus Motorsport===<br /> <br /> <br /> ====Lotus Motorsport Brake Bias Valve====<br /> Lotus Motorsport Brake Bias Valve, as used on the Elise S2 Sport 190 and VX220 Sprint. This allow the front/rear brake balance to be adjusted.<br /> (Lotus Part Number:ALS1J6012F) <br /> <br /> [[Image:brakebias.JPG|thumb|left|Lotus Motorsport Brake Bias Valve]]<br /> {{Clr}} <br /> <br /> <br /> ====Lotus Motorsport Brake Master Cylinder====<br /> (Lotus Part Number:ALS1J6010F)<br /> Content to be added! Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ====Lotus Offical upgrade kit for the S2====<br /> Lotus Motorsport supplied bolt on kit that comes with 2 x AP 4 pot alloy calipers with Pagid RS14 Pads and 2 x alloy bells with discs.<br /> (Lotus Part Number:ALS3J0040F)<br /> <br /> From Lotus Motorsport:<br /> <br /> Fittings are also included.<br /> Track Use Only<br /> <br /> The pads are 16mm thick with an area of 43.2cm2 and are Pagid RS14 ceramic friction material.<br /> <br /> They are full race pads with a medium to high friction value.<br /> <br /> The discs are 310mm outside diameter and 28mm thick and weigh 4.9kg <br /> <br /> The Caliper is a 2 piece aluminium alloy body with 38.10mm diameter piston bores. Weight is 2.3kg<br /> <br /> Designed to fit the following cars using a 16inch Front wheel:<br /> <br /> - Elise S2 (with OZ wheels + 3mm spacer) <br /> - Elise 111R - with Exige S2/Forged Alloy wheels <br /> - Exige S2 - direct fitment<br /> <br /> This kit will not fit Elise S1 or Exige S1. <br /> <br /> Lotus recommend use with braided brake hoses <br /> <br /> Lotus Part Number:ALS3J0040F <br /> <br /> Price £1,762.50 inc VAT<br /> <br /> [[Image:brakeupgrade1.JPG|thumb|left|Upgrade Caliper and Discs]][[Image:brakeupgrade2.JPG|thumb|left|Upgrade bolts]][[Image:brakeupgrade3.JPG|thumb|left|Upgrade Pads]][[Image:ALS1J6002_3F.JPG|thumb|left|Lotus Motorsport AP 4 Pot Calipers ]][[Image:APBigBrakeCaliper.jpg|thumb|left|Upgrade Caliper]][[Image:APBigBrakeCaliper2.jpg|thumb|left|Upgrade Caliper and Disc]]<br /> {{Clr}}<br /> <br /> <br /> ===EliseParts.com===<br /> [http://www.eliseparts.com/shop/index.php?main_page=index&amp;cPath=157&amp;zenid=a2860acbb2e0d419982d9d1196ced354 Elise Parts]<br /> Content to be added! Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ===Plans Motorsport===<br /> [http://www.plansmotorsport.com/showroom/components/ Plans Motorsports]<br /> Content to be added! Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ===EBC===<br /> Content to be added! Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ===HiSpec Motorsport===<br /> [http://www.hispecmotorsport.co.uk/lotus.htm HiSpec Motorsport]<br /> Content to be added! Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ==Common Questions==<br /> <br /> ===Pads sticking to the disc===<br /> <br /> The unservoed brakes on the S1 were criticised for not having enough initial bite when first applied, so Lotus used higher &quot;grab&quot; pads on the S2 to improve this. A byproduct of these pads is they tend to stick to the disc over a period of time, in damp or humid conditions this can happen within a couple of hours. This is something that affects the S1 as well but not to the same extent. Normally the stiction is limited to a clunk on pulling away, but with wet weather or if the car has recently been washed, the stciking can be quite severe. This however is not a problem its just Something you just need to be aware of, it is also just another case of [http://wiki.seloc.org/index.php/TADTS TADTS]<br /> <br /> <br /> ==Other sources of information==<br /> [http://en.wikipedia.org/wiki/Disk_brake Wikipedia on Disc Brakes]<br /> <br /> [http://www.elises.co.uk/components/s1/brakes/index.html Elises.co.uk on S1 Disc Brakes]<br /> <br /> [http://www.elises.co.uk/components/s2/brakes/index.html Elises.co.uk on S2 Disc Brakes]<br /> <br /> [http://www.hubert.racegame.org/brakes.html HubSpace.net on Disc Brakes]<br /> <br /> The &quot;Warped&quot; Brake Disc and Other Myths of the Braking System by Carroll Smith: http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[Category:Brakes]]</div>

Tom B https://wiki.seloc.org/index.php?title=Brake_discs&diff=2817 2006-08-18T23:11:49Z

<p>Tom B: </p> <hr /> <div>==Lotus OEM Fitment==<br /> ===S1 Elise===<br /> ====MMC====<br /> When originally conceived and released, the Elise was supplied with Metal Matrix Composite (MMC) brake discs in combination with specific MMC brake pads. In general it is agreed that an MMC brake setup provides excellent brake performance and feel. The only real complaint seems to be that in wet weather the initial bite and performance is poor until the discs are dried by application. (From VIN 2260 a splash guard was introduced to reduce this problem - Source [http://www.elises.co.uk elises.co.uk])<br /> <br /> MMC's differ from normal 'iron' discs in that the friction generated is mostly Adherent Friction rather than abrasive friction (a very good article on the nature of braking can be found [http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml here]). Essentially when the disc and pad come in contact some of the pad material transfers onto the disc surface, meaning the contact patches between the two are effectively the same material. As the disc rotates the bonds between the surfaces break and reform creating friction.<br /> <br /> One of the benefits of Adherent Friction is that under normal use the discs last a very very long time. When braking the pads transfer their material to the surface of the disc, and it is this layer that is broken down, not the disc suface. Therefore the discs suffer very little wear. Under very heavy use however, the bonds between the pad and disc cannot reform as fast as they are broken down, meaning areas of the disc can loose the material layer entirely. When this happens the abrasive friction of the pad can score away the disc surface making it too rough to rebuild the original material layer. If this happens braking performance from the disc is permanently damaged and the disc must be replaced. For this reason car used on track or running semi-slick tyres may wish to use traditional setups.<br /> <br /> MMC discs were also extremely light, reducing the unsprung weight of each wheel.<br /> <br /> MMC brake systems were supplied up until VIN 3714, when increased part costs forced Lotus to introduce standard iron brake discs. Recently Lotus have had trouble sourcing replacement pads, and have offered discounted conversions to iron discs for affected customers. Third party replacement pads are available from [http://www.eliseparts.com Elise Parts] and [http://www.elise-shop.com Elise Shop]. These alternative pads are also said to improve wet weather performance. MMC discs are no longer available.<br /> <br /> <br /> ====Standard cast iron====<br /> These discs followed the MMC disc as the standard brake disc for the S1 Elise from VIN 3715.<br /> <br /> Although introduced for cost reasons, Iron disks are better able to withstand the high temperatures associated with track driving and provide better wet weather performance than the previous MMC disks.<br /> <br /> The surface of the disks are solid, however they are internally vented to aid cooling. As the disk rotates at speed, centrifugal forces act on the air inside the vanes, forcing it outwards from the center. This action then draws fresh, cooler, air from the center of the disc through the internal vanes and out through the holes in the edges.<br /> extremely light, reducing the unsprung weight of each wheel.<br /> (Lotus Part Number: A111J0128F)<br /> <br /> [[Image:A111J0128F.JPG|thumb|left|Vented S1 OEM Disc]]<br /> {{clr}}<br /> <br /> <br /> ====Cross drilled====<br /> The Sport 135, Sport 160, Sport 190 and 111S models were supplied with iron disks which were vented and cross drilled. Cross drilling is the name given to drilling holes through the disc. This has a number of advantages:<br /> * The holes allow for better cooling by drawing more air into the internal vanes.<br /> * The edges of the holes clean pad surface which can provide increased brake 'bite'.<br /> * The holes prevent gasses from collecting between the pad and disc surface<br /> * The holes reduce the weight of the disk, and therefore its inertia and the unsprung weight.<br /> <br /> (Lotus Part Number: A111J0141F)<br /> <br /> [[Image:A111J0141F.JPG|thumb|left|Cross drilled and Vented S1 Disc]]<br /> {{clr}}<br /> <br /> <br /> ===S1 Exige, 340R===<br /> The Lotus Series 1 Exige and 340R, were fitted with the same cross drilled disks as seen on the Series 1 111s and Sport 160 editions described above. <br /> (Lotus Part Number:A111J0141F)<br /> <br /> <br /> ===S2 Elise and Exige===<br /> Series 2 Elises are fitted with 288mm vented iron discs. <br /> <br /> The disks on the S2 are different to those one the S1. This is due to the S1 iron disks being a copy of the original MMC disks and therefore an uncoventional size. S2's were shipped as standard with plain disks, with cross drilled versions being available as an option. Later S2's were shipped with the cross drilled disks as standard.<br /> <br /> The S2 discs feature longer, curved internal flow passages which increase the disc stability and reduce hot spot formation. The revised hole pattern has been specified to complement the new vane arrangement. <br /> <br /> The discs are not handed, so the same disc is used on the right and left hand sides of the car. The cooling air flow through the left and right discs is identical and the flow rate is purely a result of pressure differential between the centre of the disc and its rim; the shape of the vanes and the direction of rotation does not affect the flow rate significantly. <br /> <br /> Some noise from the brakes themselves is to be expected but there is a fix to stop brake pads banging in the callipers.<br /> <br /> <br /> ===Vaxuall VX200===<br /> Content yet to be added! Are the VX disks the same as the S1/S2? Press the 'Edit' link to add your knowledge!<br /> <br /> <br /> ==Lotus Europa Disc Brakes==<br /> <br /> 288mm Vented Discs with [http://en.wikipedia.org/wiki/Anti-lock_braking_system ABS] <br /> <br /> This is currently unconfirmed - Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ==Elise Upgrade Options==<br /> <br /> <br /> ===Lotus Motorsport===<br /> <br /> <br /> ====Lotus Motorsport Brake Bias Valve====<br /> Lotus Motorsport Brake Bias Valve, as used on the Elise S2 Sport 190 and VX220 Sprint. This allow the front/rear brake balance to be adjusted.<br /> (Lotus Part Number:ALS1J6012F) <br /> <br /> [[Image:brakebias.JPG|thumb|left|Lotus Motorsport Brake Bias Valve]]<br /> {{Clr}} <br /> <br /> <br /> ====Lotus Motorsport Brake Master Cylinder====<br /> (Lotus Part Number:ALS1J6010F)<br /> Content to be added! Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ====Lotus Offical upgrade kit for the S2====<br /> Lotus Motorsport supplied bolt on kit that comes with 2 x AP 4 pot alloy calipers with Pagid RS14 Pads and 2 x alloy bells with discs.<br /> (Lotus Part Number:ALS3J0040F)<br /> <br /> From Lotus Motorsport:<br /> <br /> Fittings are also included.<br /> Track Use Only<br /> <br /> The pads are 16mm thick with an area of 43.2cm2 and are Pagid RS14 ceramic friction material.<br /> <br /> They are full race pads with a medium to high friction value.<br /> <br /> The discs are 310mm outside diameter and 28mm thick and weigh 4.9kg <br /> <br /> The Caliper is a 2 piece aluminium alloy body with 38.10mm diameter piston bores. Weight is 2.3kg<br /> <br /> Designed to fit the following cars using a 16inch Front wheel:<br /> <br /> - Elise S2 (with OZ wheels + 3mm spacer) <br /> - Elise 111R - with Exige S2/Forged Alloy wheels <br /> - Exige S2 - direct fitment<br /> <br /> This kit will not fit Elise S1 or Exige S1. <br /> <br /> Lotus recommend use with braided brake hoses <br /> <br /> Lotus Part Number:ALS3J0040F <br /> <br /> Price £1,762.50 inc VAT<br /> <br /> [[Image:brakeupgrade1.JPG|thumb|left|Upgrade Caliper and Discs]][[Image:brakeupgrade2.JPG|thumb|left|Upgrade bolts]][[Image:brakeupgrade3.JPG|thumb|left|Upgrade Pads]][[Image:ALS1J6002_3F.JPG|thumb|left|Lotus Motorsport AP 4 Pot Calipers ]][[Image:APBigBrakeCaliper.jpg|thumb|left|Upgrade Caliper]][[Image:APBigBrakeCaliper2.jpg|thumb|left|Upgrade Caliper and Disc]]<br /> {{Clr}}<br /> <br /> <br /> ===EliseParts.com===<br /> [http://www.eliseparts.com/shop/index.php?main_page=index&amp;cPath=157&amp;zenid=a2860acbb2e0d419982d9d1196ced354 Elise Parts]<br /> <br /> <br /> ===Plans Motorsport===<br /> [http://www.plansmotorsport.com/showroom/components/ Plans Motorsports]<br /> <br /> ==Common Questions==<br /> <br /> ===Pads sticking to the disc===<br /> <br /> The unservoed brakes on the S1 were criticised for not having enough initial bite when first applied, so Lotus used higher &quot;grab&quot; pads on the S2 to improve this. A byproduct of these pads is they tend to stick to the disc over a period of time, in damp or humid conditions this can happen within a couple of hours. This is something that affects the S1 as well but not to the same extent. Normally the stiction is limited to a clunk on pulling away, but with wet weather or if the car has recently been washed, the stciking can be quite severe. This however is not a problem its just Something you just need to be aware of, it is also just another case of [http://wiki.seloc.org/index.php/TADTS TADTS]<br /> <br /> <br /> ==Other sources of information==<br /> [http://en.wikipedia.org/wiki/Disk_brake Wikipedia on Disc Brakes]<br /> <br /> [http://www.elises.co.uk/components/s1/brakes/index.html Elises.co.uk on S1 Disc Brakes]<br /> <br /> [http://www.elises.co.uk/components/s2/brakes/index.html Elises.co.uk on S2 Disc Brakes]<br /> <br /> [http://www.hubert.racegame.org/brakes.html HubSpace.net on Disc Brakes]<br /> <br /> The &quot;Warped&quot; Brake Disc and Other Myths of the Braking System by Carroll Smith: http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[Category:Brakes]]</div>

Tom B https://wiki.seloc.org/index.php?title=Brake_discs&diff=2816 2006-08-18T23:06:22Z

<p>Tom B: </p> <hr /> <div>==Lotus OEM Fitment==<br /> ===S1 Elise===<br /> ====MMC====<br /> When originally conceived and released, the Elise was supplied with Metal Matrix Composite (MMC) brake discs in combination with specific MMC brake pads. In general it is agreed that an MMC brake setup provides excellent brake performance and feel. The only real complaint seems to be that in wet weather the initial bite and performance is poor until the discs are dried by application. (From VIN 2260 a splash guard was introduced to reduce this problem - Source [http://www.elises.co.uk elises.co.uk])<br /> <br /> MMC's differ from normal 'iron' discs in that the friction generated is mostly Adherent Friction rather than abrasive friction (a very good article on the nature of braking can be found [http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml here]). Essentially when the disc and pad come in contact some of the pad material transfers onto the disc surface, meaning the contact patches between the two are effectively the same material. As the disc rotates the bonds between the surfaces break and reform creating friction.<br /> <br /> One of the benefits of Adherent Friction is that under normal use the discs last a very very long time. When braking the pads transfer their material to the surface of the disc, and it is this layer that is broken down, not the disc suface. Therefore the discs suffer very little wear. Under very heavy use however, the bonds between the pad and disc cannot reform as fast as they are broken down, meaning areas of the disc can loose the material layer entirely. When this happens the abrasive friction of the pad can score away the disc surface making it too rough to rebuild the original material layer. If this happens braking performance from the disc is permanently damaged and the disc must be replaced. For this reason car used on track or running semi-slick tyres may wish to use traditional setups.<br /> <br /> MMC discs were also extremely light, reducing the unsprung weight of each wheel.<br /> <br /> MMC brake systems were supplied up until VIN 3714, when increased part costs forced Lotus to introduce standard iron brake discs. Recently Lotus have had trouble sourcing replacement pads, and have offered discounted conversions to iron discs for affected customers. Third party replacement pads are available from [http://www.eliseparts.com Elise Parts] and [http://www.elise-shop.com Elise Shop]. These alternative pads are also said to improve wet weather performance. MMC discs are no longer available.<br /> <br /> <br /> ====Standard cast iron====<br /> These discs followed the MMC disc as the standard brake disc for the S1 Elise from VIN 3715.<br /> <br /> Although introduced for cost reasons, Iron disks are better able to withstand the high temperatures associated with track driving and provide better wet weather performance than the previous MMC disks.<br /> <br /> The surface of the disks are solid, however they are internally vented to aid cooling. As the disk rotates at speed, centrifugal forces act on the air inside the vanes, forcing it outwards from the center. This action then draws fresh, cooler, air from the center of the disc through the internal vanes and out through the holes in the edges.<br /> extremely light, reducing the unsprung weight of each wheel.<br /> (Lotus Part Number: A111J0128F)<br /> <br /> [[Image:A111J0128F.JPG|thumb|left|Vented S1 OEM Disc]]<br /> {{clr}}<br /> <br /> <br /> ====Cross drilled====<br /> The Sport 135, Sport 160, Sport 190 and 111S models were supplied with iron disks which were vented and cross drilled. Cross drilling is the name given to drilling holes through the disc. This has a number of advantages:<br /> * The holes allow for better cooling by drawing more air into the internal vanes.<br /> * The edges of the holes clean pad surface which can provide increased brake 'bite'.<br /> * The holes prevent gasses from collecting between the pad and disc surface<br /> * The holes reduce the weight of the disk, and therefore its inertia and the unsprung weight.<br /> <br /> (Lotus Part Number: A111J0141F)<br /> <br /> [[Image:A111J0141F.JPG|thumb|left|Cross drilled and Vented S1 Disc]]<br /> {{clr}}<br /> <br /> <br /> ===S1 Exige, 340R===<br /> The Lotus Series 1 Exige and 340R, were fitted with the same cross drilled disks as seen on the Series 1 111s and Sport 160 editions described above. <br /> (Lotus Part Number:A111J0141F)<br /> <br /> <br /> ===S2 Elise and Exige===<br /> Series 2 Elises are fitted with 288mm vented iron discs. <br /> <br /> The disks on the S2 are not compatible with those used on the S1, although they are the same diameter the offset and venting is different.<br /> <br /> The S2 discs feature longer, curved internal flow passages which increase the disc stability and reduce hot spot formation. The revised hole pattern has been specified to complement the new vane arrangement. <br /> <br /> The discs are not handed, so the same disc is used on the right and left hand sides of the car. The cooling air flow through the left and right discs is identical and the flow rate is purely a result of pressure differential between the centre of the disc and its rim; the shape of the vanes and the direction of rotation does not affect the flow rate significantly. <br /> <br /> Some noise from the brakes themselves is to be expected but there is a fix to stop brake pads banging in the callipers.<br /> <br /> <br /> ===Vaxuall VX200===<br /> Content yet to be added! Are the VX disks the same as the S1/S2? Press the 'Edit' link to add your knowledge!<br /> <br /> <br /> ==Lotus Europa Disc Brakes==<br /> <br /> 288mm Vented Discs with [http://en.wikipedia.org/wiki/Anti-lock_braking_system ABS] <br /> <br /> This is currently unconfirmed - Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ==Elise Upgrade Options==<br /> <br /> <br /> ===Lotus Motorsport===<br /> <br /> <br /> ====Lotus Motorsport Brake Bias Valve====<br /> Lotus Motorsport Brake Bias Valve, as used on the Elise S2 Sport 190 and VX220 Sprint. This allow the front/rear brake balance to be adjusted.<br /> (Lotus Part Number:ALS1J6012F) <br /> <br /> [[Image:brakebias.JPG|thumb|left|Lotus Motorsport Brake Bias Valve]]<br /> {{Clr}} <br /> <br /> <br /> ====Lotus Motorsport Brake Master Cylinder====<br /> (Lotus Part Number:ALS1J6010F)<br /> Content to be added! Press the 'Edit' link to add your knowledge! <br /> <br /> <br /> ====Lotus Offical upgrade kit for the S2====<br /> Lotus Motorsport supplied bolt on kit that comes with 2 x AP 4 pot alloy calipers with Pagid RS14 Pads and 2 x alloy bells with discs.<br /> (Lotus Part Number:ALS3J0040F)<br /> <br /> From Lotus Motorsport:<br /> <br /> Fittings are also included.<br /> Track Use Only<br /> <br /> The pads are 16mm thick with an area of 43.2cm2 and are Pagid RS14 ceramic friction material.<br /> <br /> They are full race pads with a medium to high friction value.<br /> <br /> The discs are 310mm outside diameter and 28mm thick and weigh 4.9kg <br /> <br /> The Caliper is a 2 piece aluminium alloy body with 38.10mm diameter piston bores. Weight is 2.3kg<br /> <br /> Designed to fit the following cars using a 16inch Front wheel:<br /> <br /> - Elise S2 (with OZ wheels + 3mm spacer) <br /> - Elise 111R - with Exige S2/Forged Alloy wheels <br /> - Exige S2 - direct fitment<br /> <br /> This kit will not fit Elise S1 or Exige S1. <br /> <br /> Lotus recommend use with braided brake hoses <br /> <br /> Lotus Part Number:ALS3J0040F <br /> <br /> Price £1,762.50 inc VAT<br /> <br /> [[Image:brakeupgrade1.JPG|thumb|left|Upgrade Caliper and Discs]][[Image:brakeupgrade2.JPG|thumb|left|Upgrade bolts]][[Image:brakeupgrade3.JPG|thumb|left|Upgrade Pads]][[Image:ALS1J6002_3F.JPG|thumb|left|Lotus Motorsport AP 4 Pot Calipers ]][[Image:APBigBrakeCaliper.jpg|thumb|left|Upgrade Caliper]][[Image:APBigBrakeCaliper2.jpg|thumb|left|Upgrade Caliper and Disc]]<br /> {{Clr}}<br /> <br /> <br /> ===EliseParts.com===<br /> [http://www.eliseparts.com/shop/index.php?main_page=index&amp;cPath=157&amp;zenid=a2860acbb2e0d419982d9d1196ced354 Elise Parts]<br /> <br /> <br /> ===Plans Motorsport===<br /> [http://www.plansmotorsport.com/showroom/components/ Plans Motorsports]<br /> <br /> ==Common Questions==<br /> <br /> ===Pads sticking to the disc===<br /> <br /> The unservoed brakes on the S1 were criticised for not having enough initial bite when first applied, so Lotus used higher &quot;grab&quot; pads on the S2 to improve this. A byproduct of these pads is they tend to stick to the disc over a period of time, in damp or humid conditions this can happen within a couple of hours. This is something that affects the S1 as well but not to the same extent. Normally the stiction is limited to a clunk on pulling away, but with wet weather or if the car has recently been washed, the stciking can be quite severe. This however is not a problem its just Something you just need to be aware of, it is also just another case of [http://wiki.seloc.org/index.php/TADTS TADTS]<br /> <br /> <br /> ==Other sources of information==<br /> [http://en.wikipedia.org/wiki/Disk_brake Wikipedia on Disc Brakes]<br /> <br /> [http://www.elises.co.uk/components/s1/brakes/index.html Elises.co.uk on S1 Disc Brakes]<br /> <br /> [http://www.elises.co.uk/components/s2/brakes/index.html Elises.co.uk on S2 Disc Brakes]<br /> <br /> [http://www.hubert.racegame.org/brakes.html HubSpace.net on Disc Brakes]<br /> <br /> The &quot;Warped&quot; Brake Disc and Other Myths of the Braking System by Carroll Smith: http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[Category:Brakes]]</div>

Tom B https://wiki.seloc.org/index.php?title=Brake_discs&diff=2815 2006-08-18T21:50:12Z

<p>Tom B: </p> <hr /> <div>==Lotus OEM Fitment==<br /> ===S1 Elise===<br /> ====MMC====<br /> When originally conceived and released, the Elise was supplied with Metal Matrix Composite (MMC) brake disks in combination with specific MMC brake pads. In general it is agreed that an MMC brake setup provides excellent brake performance and feel. The only real complaint seems to be that in wet weather the initial bite and performance is poor until the disks are dried by application. (From VIN 2260 a splash guard was introduced to reduce this problem - Source [http://www.elises.co.uk elises.co.uk])<br /> <br /> MMC's differ from normal 'iron' disks in that the friction generated is mostly Adherent Friction rather than abrasive friction (a very good article on the nature of braking can be found [http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml here]). Essentially when the disk and pad come in contact some of the pad material transfers onto the disk surface, so the contact patches between the two are effectively the same material. As the disk rotates the bonds between the surfaces break and reform creating friction.<br /> <br /> One of the benefits of Adherent Friction is that under normal use the disks last a very very long time. When braking the pads transfer their material to the surface of the disk, and it is this layer that is broken down, not the disk suface. Therefore the disks suffer very little wear. Under very heavy use however, the bonds between the pad and disk cannot reform as fast as they are broken down, meaning areas of the disk can loose the material layer entirely. When this happens the abrasive friction of the pad can score away the disk surface making it too rough to rebuild the original material layer. If this happens braking performance from the disk is permanently damaged and the disk must be replaced. For this reason car used on track or running semi-slick tyres may wish to use traditional setups.<br /> <br /> MMC brake systems were supplied up until VIN 3714, when increased part costs forced Lotus to introduce standard iron brake disks. Recently Lotus have had trouble sourcing replacement pads, and have offered discounted conversions to iron disks for affected customers. Third party replacement pads are available from [http://www.eliseparts.com Elise Parts] and [http://www.elise-shop.com Elise Shop]. These alternative pads are also said to improve wet weather performance. MMC disks are no longer available.<br /> <br /> ====Standard cast iron====<br /> [[Image:A111J0128F.JPG|thumb|left|Vented S1 OEM Disc]]<br /> These discs followed the MMC disc as the standard brake disc for the S1 Elise.<br /> <br /> Standard discs (Vented)<br /> <br /> Lotus Part Number: A111J0128F<br /> {{clr}}<br /> <br /> ====Cross drilled====<br /> [[Image:A111J0141F.JPG|thumb|left|Cross drilled and Vented S1 Disc]]<br /> '''Lotus Motorsport''' discs as fitted to the 111s, Sport 160 and other models (Cross drilled and Vented).<br /> <br /> Lotus Part Number: A111J0141F<br /> {{clr}}<br /> <br /> ===S1 Exige, 340R===<br /> The Lotus Series 1 Exige, and 340R, was equipped with the same cross drilled disks as seen on the Series 1 111s and Sport 160 editions as shown above. These have a better ability to handle the heat generated with hard track use than the MMC disks<br /> <br /> Lotus Part Number:A111J0141F<br /> <br /> ===S2 Elise===<br /> 288mm Vented Discs<br /> <br /> The disks on the S2 are different to those used on the S1. They are the same diameter, but have a different offset and venting.<br /> <br /> The S2 discs feature longer, curved internal flow passages which increase the disc stability and reduce hot spot formation. The revised hole pattern has been specified to complement the new vane arrangement. <br /> <br /> The discs are not handed, so the same disc is used on the right and left hand sides of the car. The cooling air flow through the left and right discs is identical and the flow rate is purely a result of pressure differential between the centre of the disc and its rim; the shape of the vanes and the direction of rotation does not affect the flow rate significantly. <br /> Some noise from the brakes themselves is to be expected but there is a fix to stop brake pads banging in the callipers.<br /> <br /> ===Pads sticking to the disc===<br /> <br /> The unservoed brakes on the S1 were criticised for not having enough initial bite when first applied, so Lotus used higher &quot;grab&quot; pads on the S2 to improve this. A byproduct of these pads is they tend to stick to the disc over a period of time, in damp or humid conditions this can happen within a couple of hours. This is something that affects the S1 as well but not to the same extent. Normally the stiction is limited to a clunk on pulling away, but with wet weather or if the car has recently been washed, the stciking can be quite severe. This however is not a problem its just Something you just need to be aware of, it is also just another case of [http://wiki.seloc.org/index.php/TADTS TADTS]<br /> <br /> ===Vaxuall VX200===<br /> <br /> ?????ARE THESE THE SAME AS THE S2 DISKS??????<br /> <br /> '''yet to be added'''<br /> <br /> ==Lotus Exige S2 Disc Brakes==<br /> <br /> ?????ARE THESE THE SAME AS THE S2 DISKS??????<br /> <br /> <br /> '''yet to be added'''<br /> <br /> ==Lotus Europa Disc Brakes==<br /> <br /> 288mm Vented Discs with [http://en.wikipedia.org/wiki/Anti-lock_braking_system ABS] <br /> <br /> '''This is currently unconfirmed'''<br /> <br /> ==Elise Upgrade Options==<br /> <br /> [[Image:ALS1J6002_3F.JPG|thumb|right|Lotus Motorsport AP 4 Pot Calipers ]]<br /> Lotus Motorsport Brake Bias Valve, as used on the Elise S2 Sport 190 and VX220 Sprint.<br /> <br /> Ideal for race or track use - giving the ultimate configurable braking control in any conditions<br /> [[Image:brakebias.JPG|thumb|left|Lotus Motorsport Brake Bias Valve]]<br /> (Part Number:ALS1J6012F) <br /> <br /> <br /> ???????Lotus Motorsport Brake Master Cylinder (Part Number:ALS1J6010F)????????<br /> <br /> as used on the Elise S2 Sport 190 and VX220 Sprint.<br /> '''yet to be added'''<br /> <br /> <br /> <br /> Lotus Motorsport AP 4 Pot Brake Calipers S2 Only (Part Number ALS1J6002_3F)<br /> <br /> <br /> <br /> [http://www.eliseparts.com/shop/index.php?main_page=index&amp;cPath=157&amp;zenid=a2860acbb2e0d419982d9d1196ced354 Elise Parts]<br /> <br /> [http://www.plansmotorsport.com/showroom/components/ Plans Motorsports]<br /> <br /> ==Lotus Offical upgrade kit for the S2==<br /> <br /> Lotus Motorsport supplied bolt on kit that comes with 2 x AP 4 pot alloy calipers with Pagid RS14 Pads and 2 x alloy bells with discs.<br /> <br /> Fittings are also included.<br /> <br /> Track Use Only<br /> <br /> <br /> The pads are 16mm thick with an area of 43.2cm2 and are Pagid RS14 ceramic friction material.<br /> <br /> They are full race pads with a medium to high friction value.<br /> <br /> The discs are 310mm outside diameter and 28mm thick and weigh 4.9kg<br /> <br /> The Caliper is a 2 piece aluminium alloy body with 38.10mm diameter piston bores. Weight is 2.3kg <br /> [[Image:brakeupgrade1.JPG|thumb|left|Upgrade Caliper and Discs]][[Image:brakeupgrade2.JPG|thumb|left|Upgrade bolts]][[Image:brakeupgrade3.JPG|thumb|left|Upgrade Pads]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[Image:APBigBrakeCaliper.jpg|thumb|right|Upgrade Caliper]]<br /> [[Image:APBigBrakeCaliper2.jpg|thumb|right|Upgrade Caliper and Disc]]<br /> <br /> <br /> <br /> <br /> Designed to fit the following cars using a 16inch Front wheel:<br /> <br /> Elise S2 (with OZ wheels + 3mm spacer) <br /> <br /> Elise 111R - with Exige S2/Forged Alloy wheels <br /> <br /> Exige S2 - direct fitment<br /> <br /> This kit will not fit Elise S1 or Exige S1.<br /> <br /> Lotus recommend use with braided brake hoses<br /> <br /> Lotus Part Number:ALS3J0040F <br /> <br /> Price £1,762.50 inc VAT<br /> <br /> <br /> <br /> ==Other sources of information==<br /> [http://en.wikipedia.org/wiki/Disk_brake Wikipedia on Disc Brakes]<br /> <br /> [http://www.elises.co.uk/components/s1/brakes/index.html Elises.co.uk on S1 Disc Brakes]<br /> <br /> [http://www.elises.co.uk/components/s2/brakes/index.html Elises.co.uk on S2 Disc Brakes]<br /> <br /> [http://www.hubert.racegame.org/brakes.html HubSpace.net on Disc Brakes]<br /> <br /> [http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml The &quot;Warped&quot; Brake Disc and Other Myths of the Braking System<br /> by Carroll Smith]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[Category:Brakes]]</div>

Tom B https://wiki.seloc.org/index.php?title=User_talk:Tom_B&diff=1350 2006-03-01T00:46:06Z

<p>Tom B: </p> <hr /> <div>Hello</div>

Tom B https://wiki.seloc.org/index.php?title=Idle_Air_Control_Valve&diff=1348 2006-02-28T19:22:44Z

<p>Tom B: </p> <hr /> <div>==Idle Air Control Valve==<br /> The IACV regulates idle speed of the engine, raising and lowering it as needed. The ECU does this by opening and closing a valve to allow more or less airflow into the intake manifold when the throttle is closed.<br /> <br /> K-Series engined Elise's use a Rover IACV (Part No. MLZ100090)<br /> <br /> [[Image:IACV.jpg|thumb|none|100px|Idle Air Control Valve (K-Series)]]</div>

Tom B https://wiki.seloc.org/index.php?title=Idle_Air_Control_Valve&diff=1347 2006-02-28T19:17:50Z

<p>Tom B: </p> <hr /> <div>==Idle Air Control Valve==<br /> The IACV regulates idle speed of the engine, raising and lowering it as needed. The ECU does this by opening and closing a valve to allow more or less airflow into the intake manifold when the throttle is closed.<br /> <br /> K-Series engined Elise's use a Rover IACV (Part No. MLZ100090)<br /> <br /> [[Image:IACV.jpg|Idle Air Control Valve (Rover)]]</div>

Tom B https://wiki.seloc.org/index.php?title=File:IACV.jpg&diff=1346 2006-02-28T19:10:38Z

<p>Tom B: An Elise IAVC. Pic from Bob VanM (http://forums.seloc.org/viewthread.php?tid=63326#pid1895346)</p> <hr /> <div>An Elise IAVC. Pic from Bob VanM (http://forums.seloc.org/viewthread.php?tid=63326#pid1895346)</div>

Tom B https://wiki.seloc.org/index.php?title=Idle_Air_Control_Valve&diff=1345 2006-02-28T19:02:54Z

<p>Tom B: </p> <hr /> <div>==Idle Air Control Valve==<br /> The IACV regulates idle speed of the engine, raising and lowering it as needed. It does this by opening and closing a valve to allow more or less airflow into the intake manifold when the throttle is closed.</div>

Tom B