Option 220 LSD again
02-02-2007, 10:55 AM
#16
Rennlist Member
Thread Starter
Originally Posted by Geoffrey
I don't like the 20/100 because it doesn't really lock up enough under acceleration and you can feel one tire spinning from time-to-time and the 100 lockup under deceleration causes the car to understeer, especially on the track. Porsche recognized this issue and went to the 40/65 lockup on the 993 race cars. The 20% on the turbo isn't so bad since the of gas / on gas transition isn't as harsh because the turbo isn't under boost due to lag, but I'd still want a 40/40 or 40/65.
I agree, I found this to be a real issue when autocrossing the turbo and made it very hard to turn in although I found I had both wheels spinning during the hard bursts of acceleration as the boost came on. Although for street use it can be helpful on occasion and keeps that heavy rear of the turbo in check which was much missed on the earlier 930's. I was hoping for the 40/40 which should work better for autocross and DE in the C2.
02-02-2007, 11:16 AM
#18
Nordschleife Master
The 996 Cup is a factory motorsport diff and does indeed have 40/65 locking rings and 4 friction plates made from more durable material than the street LSD parts.
02-02-2007, 11:33 AM
#19
Originally Posted by Geoffrey
I find it hard to believe that anyone can tell the difference between a 40/40 and 50/50 locking diff and think it probably was the difference between a worn LSD and a new tight LSD. I wonder where Peter got the 50/50 locking rings since the motorsport parts are 40/64 and the Guard are 50/80 or 80/80.
10-04-2009, 07:04 PM
#20
Reviving old LSD Thread
Reviving this thread.
Can anyone tell me if the LSD out of an 89 Turbo, G50-50 transmission, will fit a 91 C2? I imagine the LSD's for all G-50's are all interchangeable, with the difference being the lockup, ie. either 20/100 or 40/40.
Thanks,
Chris
Can anyone tell me if the LSD out of an 89 Turbo, G50-50 transmission, will fit a 91 C2? I imagine the LSD's for all G-50's are all interchangeable, with the difference being the lockup, ie. either 20/100 or 40/40.
Thanks,
Chris
