I'm currently building a turbo 1st gen s5 motor with judge ito street ports gt4082 turbo, turbo 2 trans and I'm now trying to decide on what gear ratio to run in an 8.8 ford rear end? What do you think 410 or lower?

 

what you using the car for? is it mainly a street car, or is it a drag car or a road racer . auto crosser ? depending on tire size for the street to spirited driving a 3.9 to 4.10 would be good. if goin auto cross or road racing try 4.3 to a 5.13 depending on the length and course lay outs. drag,,,,,,,,, 4.88 and up i would think but then again i no longer play in a straight line.





i know on the gt3 / EP first gens we run a small tire with anywhere from a 4.3 to a 5.13 on big and small tracks.





randy