Final drive calculation.

[Uzelac]

(12-24-2014 09:09 AM)assassin10000 Wrote:  With the 6 speed, I'd vote 4.3's.

Even if 1st is usable, that wouldn't be a wise option since nobody goes 220+ km/h at track/stage.
On that Aisin gearbox (S15, MX5 and IS200) 1st is pretty much unusable, so one need short FD to use it as 5speed gearbox, from 2nd to 6th .
Btw. that also makes that gearbox kind of "dogleg" one

I vote for a true SCCR gearbox for track/stage use with 4.778+ FD.
For a daily, 6speed gearbox with FD in range from 4.1 to 4.778.