Vote 2003 C4S vs 2004 40th Anniversary
07-07-2014, 07:39 PM
#46
Three Wheelin'
But doesn't converting to 2wd remove all the handling benefits? While there are a lot of small differences that could slightly improve handling, I think there are only 3 big ones: (1) power to the front wheels, (2) better weight distribution, and (3) springs, dampers, and maybe anti-roll bar - most/all are stiffer than all but the hardest option for regular 996s. (Though does anyone know if the stiffness increase is beyond that needed to compensate for the extra weight?)
Of course, the third difference could address the slow turn in and inert rear that some complain about with regular, 2wd 996.2s. But if so, then surely everyone would modify their suspension, and no one on the forum would talk about the C4S's handling advantages ... ?
Or am I wrong - does a "C2S" keep most of the C4S's handling advantages? And can modifying a regular 996.2's suspension make it handle like a C4S? (Or a 996.1, for that matter?)
Of course, the third difference could address the slow turn in and inert rear that some complain about with regular, 2wd 996.2s. But if so, then surely everyone would modify their suspension, and no one on the forum would talk about the C4S's handling advantages ... ?
Or am I wrong - does a "C2S" keep most of the C4S's handling advantages? And can modifying a regular 996.2's suspension make it handle like a C4S? (Or a 996.1, for that matter?)
07-12-2014, 03:22 PM
#48
Rennlist Member
07-12-2014, 03:57 PM
#49
RL Community Team
Rennlist Member
Rennlist Member
The PSM would not work with most LSDs, which I understand is why they did not offer the LSD in 2002. But eventually Porsche figured out how to make a LSD with a very low ratio - about 22% - which works with PSM. This is the LSD on the 40th (and other rwd normal 996s with the LSD option). So I would suppose that it would allow some power to the non-spinning wheel before cutting power, no?
And it won't cut power if you turn PSM off :-)
And it won't cut power if you turn PSM off :-)
All of you guys who track your 40th's should be able to chime in with their experience: Must you disable PSM on a track to keep it from intervening when trying to accelerate through and out of corners?
07-12-2014, 04:34 PM
#50
Three Wheelin'
You are goo, LOL.
07-12-2014, 06:29 PM
#51
It might permit a slightly higher limit as to when the PSM kicks in since some wheel slip would be mechanically limited prior to a wheel-speed difference occurring, which would keep PSM from intervening. But 22% lockup doesn't do much on the acceleration side, and if you've got a lot of miles its friction plates might be worn out any how!
All of you guys who track your 40th's should be able to chime in with their experience: Must you disable PSM on a track to keep it from intervening when trying to accelerate through and out of corners?
All of you guys who track your 40th's should be able to chime in with their experience: Must you disable PSM on a track to keep it from intervening when trying to accelerate through and out of corners?
