Auto diff on manual car?

[30psi]

How are you using the S13 crown wheel and pinion then?

[Sharas]

Hm... I have the s13 gearbox (its not in the car yet), but diff the will be staying the same, from my s12, if everything fits ofcourse. (im not sure what exactly is crown wheel and pinion, but from what i found realy fast in google, these gears ar in the diff, so im hoping i wont need to change them)

[30psi]

Yeah they're in the diff.

You need to compare the gearbox ratios not the diff ratios

[Sharas]

Hm... Im a little confused now (the gearbox ratios are also a bit different, thou the 4 gear is the same), but dosent the final drive ration depend on the diff? (so if compared to an s13 i should have shorter gear ratios, since the final drive is different).
Or am i totaly wrong here now

[30psi]

No if you want to compare it to an S13 its fine, but I though wanted to see what the effect of using an S13 gearbox would be in an S12?

[Sharas]

Originally Posted by 30psi

No if you want to compare it to an S13 its fine, but I though wanted to see what the effect of using an S13 gearbox would be in an S12?

Thought so, thanks for clearing out everything for me .

P.S. Since the gearbox is together with an ca18det engine, it makes more sence to compare the final setup with an s13 (in my opinion).

[30psi]

Originally Posted by Sharas

Thought so, thanks for clearing out everything for me .

P.S. Since the gearbox is together with an ca18det engine, it makes more sence to compare the final setup with an s13 (in my opinion).

Yeah thats fairly good reasoning if you ask me