295 users, rim?
#16
Rennlist Member
Originally Posted by HansB
Right.
To avoid understeer we run 951 racers with equal tiresizes F/R 285 - 305 depending on make and model.
To avoid understeer we run 951 racers with equal tiresizes F/R 285 - 305 depending on make and model.
#17
Three Wheelin'
Join Date: Feb 2007
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Originally Posted by HansB
Right.
To avoid understeer we run 951 racers with equal tiresizes F/R 285 - 305 depending on make and model.
To avoid understeer we run 951 racers with equal tiresizes F/R 285 - 305 depending on make and model.
I will also be shipping my car to .nl to prep for race season
on your page though, you list 245 and 285?
#18
Originally Posted by anders44
I went to the url in your profile, love your car! a couple of neat solutions I might pirate off you. didn't understand everything but I'll have a dutch friend help me out.
I will also be shipping my car to .nl to prep for race season
on your page though, you list 245 and 285?
I will also be shipping my car to .nl to prep for race season
on your page though, you list 245 and 285?
New front, new custom build A-arms, wider fenders, wider Q-panels, Kokeln rear axis, 10,5 BBS rims. Oyes, and I also lower the car 2,5 cm further.
You can follow rebuild on this site Will post some pictures of the new front this week.
I could run 305/645 or 305/660 18 Pirelli F/R, or similar Dunlop and Michelin. Will start with 285 though, and see what the tire temp does.
#20
Rennlist Member
I still find it hard to believe that you're intending running 285-305 all round as in same size front and rear but I will follow your progress with interest.
#21
Originally Posted by 333pg333
I still find it hard to believe that you're intending running 285-305 all round as in same size front and rear but I will follow your progress with interest.
1. Weight distribution of our cars is 50/50 F/R
and
2. The tire temperatures on a 245F 285R setup are 80C / 55C
and
3. some serious race cars like the Kokeln Orca (18x12) and Woodies 951R (17
x11) drive a square setup
and
4. with a 245F 285R setup it is hard to get rid of the understeer
All 4 arguments go in the same direction.
But yes, the proof of the pudding is in the eating.
#22
Rennlist Member
Well that all makes sense Hans, thanks. By the way what sort of hp output is your car and how light is it?
Patrick
Patrick
#24
Rennlist Member
Well by what Hans is saying that would depend on you're hp, but knowing a bit about your projections maybe this is what you're going to need!
#25
Nordschleife Master
Originally Posted by guns951
So by the square theory a 355 all the way around would be best?
This is a very important aspect.
#26
Racer
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Join Date: Jun 2002
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Originally Posted by Duke
Not necessarily. Too wide a tire and you won't get up to optimal temperature for maximum grip.
This is a very important aspect.
This is a very important aspect.
#27
Rennlist Member
Front and rear 355's sounds preposterous to me but if that's the theory re same size all round then this will be the car to do it on...600hp+ eh Guns???
#28
Originally Posted by Duke
Not necessarily. Too wide a tire and you won't get up to optimal temperature for maximum grip.
This is a very important aspect.
This is a very important aspect.
E.g.in the wet I run 250's. On my car in the current setup 265's would probably be ok. On Woody's now sold 500+HP car he had 12" rims, which would support 335+ tires
My current output is 335 HP, with a 2380 weight. Building a 400HP engine, with a 2315 goal weight.
The car will be 4 inches wider and 1 inch lower, which would gain me in theory 0.25g cornering grip, if the tires stick..
The ultimate goal is to keep up with a 911 GT3 RS. One needs to have dreams,