speedometer incorrect
Thread Starter
3rd Gear
Joined: Jul 2018
Posts: 3
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speedometer incorrect
I have a 1990 ZR1 vette with a ZF 6 speed manual tranny. rear differential gears have been changed to 4.10 ratio. my speedometer is off and cannot be corrected by using OEM speedo gears. it has electronic speedometer with the sensor that is installed into extension housing. is there a electronic "cheater" module available that I could install that will adjust speedo to correct speed. or does anyone know of any places to get drive and driven speedo sensor gears to correct the speedometer.
Racer
Joined: Apr 2018
Posts: 349
Likes: 55
I have a 1990 ZR1 vette with a ZF 6 speed manual tranny. rear differential gears have been changed to 4.10 ratio. my speedometer is off and cannot be corrected by using OEM speedo gears. it has electronic speedometer with the sensor that is installed into extension housing. is there a electronic "cheater" module available that I could install that will adjust speedo to correct speed. or does anyone know of any places to get drive and driven speedo sensor gears to correct the speedometer.
https://www.ecklerscorvette.com/corv...CABEgJjm_D_BwE
Thread Starter
3rd Gear
Joined: Jul 2018
Posts: 3
Likes: 0
A bit expensive, and I can't speak for how well it works, but Ecklers sells one.
https://www.ecklerscorvette.com/corv...CABEgJjm_D_BwE
https://www.ecklerscorvette.com/corv...CABEgJjm_D_BwE
Safety Car
Joined: Apr 2003
Posts: 3,793
Likes: 9
From: VA
I have a 1990 ZR1 vette with a ZF 6 speed manual tranny. rear differential gears have been changed to 4.10 ratio. my speedometer is off and cannot be corrected by using OEM speedo gears. it has electronic speedometer with the sensor that is installed into extension housing. is there a electronic "cheater" module available that I could install that will adjust speedo to correct speed. or does anyone know of any places to get drive and driven speedo sensor gears to correct the speedometer.
https://www.emracingshop.com/product...n-gears-manual
By reading old posts like these:
https://www.corvetteforum.com/forums...or-4-10-a.html
https://www.corvetteforum.com/forums...eedo-gear.html
That I found by doing this:
https://www.google.com/search?q=spee...=1686&bih=1244
