xspsi6

iTrader: (31)

just as title says and reference what is an auto ratio.

O. L. T.

iTrader: (17)

use proper forum pls.

moved.

Blizzy

iTrader: (-1)

5MT used a 4.08.
SC300 A/T used a 4.27.
SC400 A/T used a 3.92 until 97.
SC400 A/T used a 3.26 from 98-00.

xspsi6

iTrader: (31)

Sorry brain fart.

xspsi6

iTrader: (31)

so the 4.27 gear would be an upgrade for us 5spd guys who are after 1/4 mile times?

drewgo

I had 4.27 then went with 4.08 lsd, You will zipping through gears, I would say 4.08 would be a better combo. Still gives you good launch and a nice top end.

xspsi6

iTrader: (31)

would you say the 4.27 is too hard to launch with the 5 spd or is crusing rpm's to high.

sc300gte

are u sure the 5spd manual uses a 4.08...i was almost positive it was a 4.27...

drewgo

Very positive.....
Auto is 4.27
sc400 is 3.91
sc300 is 4.08 this included the Torsen diff found as an option in the mkiv NA

Blizzy

iTrader: (-1)

I rebuilt an SC300 A/T Diff with the 4.27 gears to include a Torsen LSD for my SC400 (stock 3.92 ratio).

The car really rips. The 4.27 LSD alone took 0.4s from my 0-60 and 45-65 times. In general, the car feels 300lbs lighter. It is much more peppy off the line.

3k rpm in top gear is at ~75mph on the highway, and the engine would redline out at 149 in top gear: I'd say that is still plenty fast.

Fuel economy has not appeared to be significantly different as the tach still lives under 3k rpm during 95% of the time I am in the car.