Stack - Revision history

Matt93: Added "communication with aftermarket ecus section"

2026-04-26T18:33:22Z

Added "communication with aftermarket ecus section"

← Older revision		Revision as of 18:33, 26 April 2026
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	* http://www.warp.at/lotus		* http://www.warp.at/lotus

			=== Communication with aftermarket ECUs ===
			In the Rover engined S2 Elises, the following information is sent to the Stack by the ECU:

			* Water temperature - Lotus ECU pin 72, Stack connector pin A6
			* Speed - Lotus ECU pin 74, Stack connector pin A5
			* RPM - Lotus ECU pin 55, Stack connector pin A4
			* Check engine light status - Lotus ECU pin 69, Stack connector pin B5

			Water temperature must be configured as a 5v PWM signal at 100hz, with 100% duty cycle at all coolant temperatures below 72c. The dash will not output temperatures below this, 100% duty cycle will cause the screen to be blank which is the intended output. At 72c, duty cycle should be 90%, and then 10% less every 7c over this. E.g. 80% at 79c, 70% at 86c, etc...

			Speed is a 5v square wave, the VR sensor on the rear left wheel has 29 teeth, different ECUs may use different methods of calculating speed but the easiest way is usually to drive and compare against a GPS speedo, then adjust the ECU output until the dial reads correctly.

			RPM is a 5v square wave and shouldn't need any messing with.

			Check engine light is triggered when the pin is pulled to ground.

			There is a pin for the shift light also, but this will also be triggered by the Stack unit internally so isn't usable unless you wanted to use the light for another purpose.

	===Also See===		===Also See===

Dougie at 09:44, 6 March 2026

2026-03-06T09:44:09Z

← Older revision		Revision as of 09:44, 6 March 2026
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	A rebuild (which included removing and refitting the glass) and two new motors was £230 + VAT + £11 P&P (in 2019). It also came back looking better than new!		A rebuild (which included removing and refitting the glass) and two new motors was £230 + VAT + £11 P&P (in 2019). It also came back looking better than new!

			or at

			https://www.britsdoc.com (Germany)

	===Resetting===		===Resetting===

DavidI: /* S1 Stack Glass */

2019-10-15T14:30:06Z

S1 Stack Glass

← Older revision		Revision as of 14:30, 15 October 2019
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	(As of Oct 25, 2008, STACK no longer sell the replacement Glass) but elise-shop.com started to sell the glasses. You can find them here: [http://www.elise-shop.com/stack-replacement-glass-elise-s1-exige-s1-p-354087.html ..here..]		(As of Oct 25, 2008, STACK no longer sell the replacement Glass) but elise-shop.com started to sell the glasses. You can find them here: [http://www.elise-shop.com/stack-replacement-glass-elise-s1-exige-s1-p-354087.html ..here..]

	According to 213Performance (details above) the Stack instruments had a glass front ~~unto~~ around the middle of 1998, with an acrylic front from then on. 213Performance only have the acrylic fronts, but can swap an earlier glass-fronted unit for an acrylic front and claim it is very difficult to spot the difference. The acrylic fronts apparently suffered less from the grey 'surround' peeling or delaminating. 213Performance also offer a complete diagnostic service and although cannot get all parts claim to be 100% in the 100 or so repairs carried out to date (October 2019).		According to 213Performance (details above) the Stack instruments had a glass front until around the middle of 1998, with an acrylic front from then on. 213Performance only have the acrylic fronts, but can swap an earlier glass-fronted unit for an acrylic front and claim it is very difficult to spot the difference. The acrylic fronts apparently suffered less from the grey 'surround' peeling or delaminating. 213Performance also offer a complete diagnostic service and although cannot get all parts claim to be 100% in the 100 or so repairs carried out to date (October 2019).

	===Dimensions S1 Stack Glass===		===Dimensions S1 Stack Glass===

DavidI: /* S1 Stack Glass */

2019-10-15T14:29:31Z

S1 Stack Glass

← Older revision		Revision as of 14:29, 15 October 2019
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	(As of Oct 25, 2008, STACK no longer sell the replacement Glass) but elise-shop.com started to sell the glasses. You can find them here: [http://www.elise-shop.com/stack-replacement-glass-elise-s1-exige-s1-p-354087.html ..here..]		(As of Oct 25, 2008, STACK no longer sell the replacement Glass) but elise-shop.com started to sell the glasses. You can find them here: [http://www.elise-shop.com/stack-replacement-glass-elise-s1-exige-s1-p-354087.html ..here..]

			According to 213Performance (details above) the Stack instruments had a glass front unto around the middle of 1998, with an acrylic front from then on. 213Performance only have the acrylic fronts, but can swap an earlier glass-fronted unit for an acrylic front and claim it is very difficult to spot the difference. The acrylic fronts apparently suffered less from the grey 'surround' peeling or delaminating. 213Performance also offer a complete diagnostic service and although cannot get all parts claim to be 100% in the 100 or so repairs carried out to date (October 2019).

	===Dimensions S1 Stack Glass===		===Dimensions S1 Stack Glass===

1-Eleven: /* Repair */

2019-05-30T11:35:15Z

Repair

← Older revision		Revision as of 11:35, 30 May 2019
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	http://www.213performance.co.uk/stack-product-service-and-repair		http://www.213performance.co.uk/stack-product-service-and-repair

	A rebuild (which included removing and refitting the glass) and two new motors was ~~around~~ £230 (in ~~2018~~). It also came back looking better than new!		A rebuild (which included removing and refitting the glass) and two new motors was £230 + VAT + £11 P&P (in 2019). It also came back looking better than new!

	===Resetting===		===Resetting===

Mark.T at 15:22, 12 October 2018

2018-10-12T15:22:41Z

← Older revision		Revision as of 15:22, 12 October 2018
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	[[image:elisestack.JPG\|thumb\|left\|S1 Elise Stack Unit]]		[[image:elisestack.JPG\|thumb\|left\|S1 Elise Stack Unit]]
	{{clr}}		{{clr}}

			===Repair===
			S1 Stack units can now be repaired by 213 Performance in Bicester:

			http://www.213performance.co.uk/stack-product-service-and-repair

			A rebuild (which included removing and refitting the glass) and two new motors was around £230 (in 2018). It also came back looking better than new!

	===Resetting===		===Resetting===

Pman120 at 12:16, 23 October 2013

2013-10-23T12:16:36Z

← Older revision		Revision as of 12:16, 23 October 2013
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	(As of Oct 25, 2008, STACK no longer sell the replacement Glass) but elise-shop.com started to sell the glasses. You can find them here: [http://www.elise-shop.com/stack-replacement-glass-elise-s1-exige-s1-p-354087.html ..here..]		(As of Oct 25, 2008, STACK no longer sell the replacement Glass) but elise-shop.com started to sell the glasses. You can find them here: [http://www.elise-shop.com/stack-replacement-glass-elise-s1-exige-s1-p-354087.html ..here..]

			===Dimensions S1 Stack Glass===
			If you want to make yourself a lightweight perspex version of the Stack glass, here are the dimensions

			[[Image:StackDimensions.jpg\|thumb\|left]]

			{{clr}}

	===Return to Zero===		===Return to Zero===

Cybernet at 23:33, 25 July 2012

2012-07-25T23:33:49Z

← Older revision		Revision as of 23:33, 25 July 2012
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	Image:Stack return to zero.jpg\|S2 Stack display after odometer reset		Image:Stack return to zero.jpg\|S2 Stack display after odometer reset
	</gallery>		</gallery>

			=== CAN Bus API for PI Shurlok Clusters ===

			* http://www.warp.at/lotus

	===Also See===		===Also See===

Mark E: /* Resetting */

2011-11-30T13:04:36Z

Resetting

← Older revision		Revision as of 13:04, 30 November 2011
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	===Resetting===		===Resetting===
	I recently acquired a GPS and was very shocked to see that my speedo was over-reading by about 10 mph when compared to the GPS. On searching the Tech forum, I realised that this is quite common, and can be simply rectified by resetting the Stack unit ~~[also works on Shurlock instrument cluster]~~ as follows:		I recently acquired a GPS and was very shocked to see that my speedo was over-reading by about 10 mph when compared to the GPS. On searching the Tech forum, I realised that this is quite common, and can be simply rectified by resetting the Stack unit as follows:

	- Turn off the ignition		- Turn off the ignition

Mark E: /* Resetting */

2011-11-30T13:03:41Z

Resetting

← Older revision		Revision as of 13:03, 30 November 2011
Line 5:		Line 5:

	===Resetting===		===Resetting===
	I recently acquired a GPS and was very shocked to see that my speedo was over-reading by about 10 mph when compared to the GPS. On searching the Tech forum, I realised that this is quite common, and can be simply rectified by resetting the Stack unit as follows:		I recently acquired a GPS and was very shocked to see that my speedo was over-reading by about 10 mph when compared to the GPS. On searching the Tech forum, I realised that this is quite common, and can be simply rectified by resetting the Stack unit [also works on Shurlock instrument cluster] as follows:

	- Turn off the ignition		- Turn off the ignition
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	From my research, this seems to work on all versions of the Elise, including those with Stack and Shurlok instruments.		From my research, this seems to work on all versions of the Elise, including those with Stack and Shurlok instruments.


	===Stack Unit - removing unit===		===Stack Unit - removing unit===