RajDatta

GT30 with a 3.0 and factory 968 turbo S 6 speed tranny. That is what I have in mine. Going to get it dyno tuned this coming friday. So lets see what she will do at 14.5 psi.
Tommo, 968 turbo S has a 6 speed. I have one of those trans in my car. They are not cheap, over $8500 with the exchange rate and tax. They are almost 10mph faster at the same engine rpm as the standard 968 6 speed. The gearing is completely different and so is the LSD (75% lockup). Much stronger to cope with the added power.
Raj

tommo951

Hi Raj,
Thats quite interesting regarding your transmission. As I am based in Europe I may be able to get one a bit cheaper (Less freight and import duty) Do you have a part number?
My friends 968 Turbo is definately 5 speed though from the factory as he bought it direct from Porsche. Is yours an 8v or 16v?? as this one is 8v?

Cheers
Tom

M758

What is the big deal about a 968 6 speed? For a street car? Not much gain really.

For high hp race car go with the 6spd 968 unit. Stronger and better selection of gears to choose from. I believe they also use (or can be swapped with) the same diff units as in current GT3 racers.

Chris Cervelli ran one in is 3.0 450+ hp 944 Turbo race car. If he raced with one and recommends it as stronger then I would tend to believe him.

Only nice feature of the 944 Turbo unit is the external oil cooler.

RajDatta

Tommo, that is impossible. There was no such thing as a 968 turbo S 5-speed. He must have changed it at some point. mine is an 8 valve as well.
I will snap some shots of my turbo S trans and post them.
Raj