Mine is set up per Cup spec. Some guys go even less or slightly toe out but that makes the car darty. Yours is set up for more straight line stability. It's all personal preference.

ok good to know. thanks

Just a brief update, still on stock sways, car is now OK with new spring rate setup. Went from 70/190 to 70/150. 90/150 had surprisingly bit of problems with front grip. However, on my test days on comparable tracks I had problem with the slippery surface of the track, or/and my lack of actual tire grip so I cannot give exact data which spring setup is better for me.

Great that on the Nordschleife I am happy enough with the current setup! Still some shock fine tuning to be made...

Here's btw a small film from my last weekend's relaxation trip. Camera car is a very well driven 430hp Lotus Exige S:


Btw. In front of me in the vid I have the fastest street-legal BMW, the famous Schirmer M3:

AWD can be very dangerous in that it creates a false sense of driving abilities to some people with lesser abilities that can and will bite. And when an AWD car gets wrong it is usually past the point of correction unless extremely skilled. In my experiences a RWD car if properly setup will give you more feedback and tends to let you know when it is not okay, except for in case of throttle lift at the wrong time. Then all bets are off.

there is NO question in my mind that this car in rwd config gives more "accurate" feedback and therefore - depending upon ones skill level - provides the capacity to push the car a bit harder, which would in *theory* lead to faster time(s). but that's my combo of experience mixed with conjecture, but i agree with the above post.

I respect your opinion but disagree. Feedback does not mean you will be faster. Too much feedback is negative in terms of performance. Confidence is everything.

i'm probably mis-applying the term. perhaps i should have said "more confidence in knowing what the car will or is apt to do, in a given situation". the awd/psm/abs combo makes a lot of that more guessing, than many of us ( i assume? ) enjoy. i would imagine you to be in this group.

thx for the compliment, btw. ( if directed at me ) back at you also..

I agree with those points. But, I don't think that is a 100% objective point as much as opinion based on personal experiences with your setup. Not incorrect by any means.

If your thoughts on feedback and confidence were a fact for all setups then I would expect we would also be seeing AWD cup cars, RSR and all of the other purpose built race cars. It goes without saying that one of the keys to driving a turbo car in a track environment is throttle management. And AWD traction increases that margin for error in throttle management. But it also becomes a limiting factor in your lap times. Not everybody that has a turbo is a seasoned enough 911 driver for AWD to be the limiting factor of your lap times. That does not mean that all RWD turbos are slower. It just means that more seat time is needed to take advantage of the benefits of RWD. It isn't right or wrong or good or bad. It is what is right for that particular driver.

And in that point let's not forget the success Audi had with the AWD R10 race program.

said that better than i might've. but its all "true". while awd, throttle steering ( essential ) is difficult if not ( i find ) much less easily accomplished than most of us would hope. as far as I'm concerned rwd = problem solved.

You would see them if they were allowed. Most series ban awd. And im glad they do. 9ther series just saddle awd with a bunch of weight. Porsche did make an awd cup car but it couldn't compete in the normal class so it ran by itself. And the cup is based on thr rwd gt3 so that is how it will stay.

Ive said from the beginning its a sliding scale. Less traction, awd is king you can look at rally, hillclimb et . As more traction is available it depends on the setup. My only point here is that some here dismiss awd as inferior and its not. And that is not opinion.

Guys, lots of learning for me in this thread thanks. I have a dilemma which I'd like to throw in and I think is not OT, but tell me if it is. I have a been tracking a AWD '03 Turbo for the last 18mths and doing good times. Initially I was slower than the 2 GT3's in our comp but recently have been beating them. Now I have bought a track focused '01 Turbo that has been a track/tarmac rally car for the last 10 years. It's still AWD and if I was just going to use it for track work I'd convert it to RWD and add a LSD. But, as I want to use it for tarmac rally in the future I'm concerned that loosing AWD may not be best. The road rally stuff takes me through forest roads with wet mossy roads and very variable grip levels. I'm thinking of adding a LSD and keeping AWD, does anyone want to offer an opinion?

I liked AWD+LSD a lot, did some lap records with that. Of course right kind of suspension setup is crucial.

I like RWD+LSD as well, requires bit different setup though (when you are interested in gaining the last tenths of seconds in lap time.)

For rally, sure, awd and lsd should be awesome.

Yeah, that's what I thought. I love the idea of going RWD and getting the responsiveness but I'm thinking for the rally car it will be a better all rounder with AWD + LSD. I might have to do the RWD+LSD thing for my road car to have some fun

i think it's instructive for us all to remember that jeff zwart is running what is essentially a gt3 cup car with a turbo motor and winning in an rwd config up a mountain with about 156 turns at an average grade of 8%. so much for n/a vs turbo X awd vs rwd for hill climbing lol

which is all that i need to know ... for what i enjoy. gotta love an uphill twisting 8% grade