M6 to 4l80 speedometer ?????

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03-29-2009, 09:32 PM

Randy WS6

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M6 to 4l80 speedometer ?????

I installed a 4l80 in my 2000 TA witch was a M6. The speedometer pluged right up. I have 4:30 gears, At 35mph ,my speedometer reads 85mph. I have EFI Live. What are you guys doing to off set the 4L80

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03-30-2009, 11:13 AM

ShevrolayZ28

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Quote:

Originally Posted by Randy WS6

I installed a 4l80 in my 2000 TA witch was a M6. The speedometer pluged right up. I have 4:30 gears, At 35mph ,my speedometer reads 85mph. I have EFI Live. What are you guys doing to off set the 4L80

I think it can be done with EFI Live. But on my car I am using a Compushift controller so I decided to use a Dakota Digital SGI-5c speedo signal calibrator.

https://ls1tech.com/forums/automatic...o-cal-box.html

This would work for you too....

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07-23-2010, 09:30 AM

ArklaTexan

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http://www.dakotadigital.com/index.c...rod/prd126.htm

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07-23-2010, 09:51 AM

Jays_SSZ28

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Quote:

Originally Posted by Randy WS6

I installed a 4l80 in my 2000 TA witch was a M6. The speedometer pluged right up. I have 4:30 gears, At 35mph ,my speedometer reads 85mph. I have EFI Live. What are you guys doing to off set the 4L80

You need to tune it for a 40 tooth reluctor wheel.

And the rear gear, tire size. Make sure it's plugged into the rear sensor.

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