Installed a working speedo from a wrecked T2 in my s4 vert both are s4

I had to bend the little metal tab for where the speedo rests while not moving because it was 20 km under 0

so now it rests on 0

I bent the tab after I tried it first so I know that is not the cause.

Any ideas? I drive down the street with my phones GPS telling me I'm doing 40 km when my speedo shows 20

 

You have dif rear end ratios

 

You're right. Forgot haha 3.9 vs 4.1 oh well I installed another Turbo speedo and it sit perfectly on 0 and is only 5-8km over the actual speed.

I can deal with the closer gap plus 260 km top speed instead of 240 on na speedos

 

It looks like you've found a work-around, but here's the solution: https://www.rx7club.com/2nd-generati...-speed-941733/.