I have 2.73s and I want to change to either 3.23s or 3.42s. Can anyone estimate the quarter mi differences on a basically stock car?

 

On a watch timed qm run with mods in sig. The 3.42 run was 13 and the 2.73 run was about 15. Expect at least a 2/3 second increase unless you run into traction issues.

 

that seems like a lot. i didn't think changing gears was that hard. ?

 

I dont think that they will change your times 2 seconds if you are at a real track, but I would be interested in what they will do. I am getting a 3.45 rear ready to replace my 2.77. I wont know the difference from just that because it is also getting a new motor, tranny upgrades, and a little bit of suspension work done to it right now too.

Ben