mortymower

currently have an S2 trans and I like the lower gears but hate cruising at 75-80 and running close to 4K rpms. Is the 968 like an S2 with just one more gear because thats what I want. What rpms do you run at 70-75

mortymower

I have a 951 by the way but i am considering trans change obviously

saxman

don't know exactly off hand... if I recall correctly, around 3k at 75 mph

Dave in Chicago

There is a speeds-in-gears chart in the owners manual... Mine's in the shop or I'd look it up. Someone must have theirs handy out there. Yes?

PorscheG96

My 968 engine is turning 2900-3100 RPM's @ 70-75 mph in 6th gear.

boost feen

Same her about 75 mph at 3000 RPM's

StewHatch

3100 rpm at 75 mph
1993 968 Coupe LSD

mortymower

Thanks

mortymower

also about my other question, what are the first five gears like are they similar to the S2 trans or something different

Jfrahm

You can multiply it out, ratios are below. 1st is a little longer in the 968, the OD ratio seems about the same.

S2:
1- 10:35 (3.500)
2- 17:35 (2.059)
3- 25:35 (1.400)
4- 29:30 (1.034)
5- 36:28 (0.778)

Final 8:31 (3.875)

968:
1st = 3.1782,
2nd = 2.000,
3rd = 1.435,
4th = 1.111,
5th = 0.912,
6th = 0.778,

Final 3.778

An issue with a turbo car is not building boost fast enough in the lower gears, so the 968 trans might mean you are shifting (and dumping boost) more often before the turbo is fully spooled. The tricky bit with a 968 trans is making a speedo pickup work on the 944 Turbo. 968 gets the speed off of an ABS sensor, 951 off of a trans pickup.

RajDatta

Joel, the stock 968 trans adds quite a bit to acceleration on a turbo car. When I switched to a 968 turbo S trans, right away I felt a big difference since is geared much taller.
Raj

Jfrahm

Right, but if he is coming from an S2 trans already he does not see the big change from the final drive but will shift once more. I am not sure that would be a benefit.