What diff ratio?? (English)

[aaronblue]

Hi all
 
Im trying to find out what diff ratio i need, Im running a 100e with a 2.0 st170 lump and rx8 gearbox on 13" wheels with 175 50 tires i will be using the car as my daily/toy so want it usable. ive been told 3:54 is ideal you guys got any other ideas. also you know of any for sale?

 

cheers

[Vista]

Your tyre size is also relevant.

[aaronblue]

Your tyre size is also relevant.

Edited cheers

[Vista]

175/50? Definitely a 3.54.

[aaronblue]

confirmed thank you buddy, just need to find one now