Roadfly.com         Roadfly Home | Features | Car Review Videos | Car Reviews | Cars For Sale | Used Car Parts Classifieds | Forum | Car Review Archives | Forum Archives Index



PDA



Jorg
05-23-2002, 11:58 AM
I\'m tired of trashing my street rubber, I may keep what\'s left of the Contis for the street and I\'m checking into track wheels/tires. Has anyone who took this route decided to go 18x8 all the way around ? I may
have found a good deal on 18x8 wheels with 80% tread-left rubber on them that could fit the bill. I know the more contact patch the better, but I wanted to see what others are running... and my budget is limited

Thanks<br><img src="http://members.roadfly.com/jorg/M3GTRSig.jpg">

Enigma
05-23-2002, 12:05 PM
I would not go to a 8" tires all around. In this car I would stay with wider tires in the back. It simply has too much power not to have the wider tires.

DonT
05-23-2002, 12:30 PM

Brad Otoupalik (evosport)
05-23-2002, 12:44 PM
you can use the 255 kumho and do use spacers in the rear to get as much track as you can!

We are doing this for a coupel of BMW CCA Club racers, but with 17x9 and 18x9.

Thanks

brad

Mr. Grinch
05-23-2002, 12:45 PM
A few guys who track their cars have already gone 18x8 with good results. Not only was it cheaper, but they actually preferred the handling because same-size tires all around reduced the oversteer to neutral.

But don't take my word for it... see if you can get the word from them first hand. A few of them were regulars here.

Jorg
05-23-2002, 12:58 PM
that I may get the 18x8 wheels/tires for, it\'s almost too good to pass up...
THANKS<br><img src="http://members.roadfly.com/jorg/M3GTRSig.jpg">

Enigma
05-23-2002, 01:18 PM
Here I autoX the car on a regular basis. I may be having more of a problem powering out of turns because I will often be in lower gears, mostly 2nd and sometimes 1st. Because of this the stagger helps a lot. I will be going to 245/35-18 and 275/35-18 when I order the next set of tires.

I very much dislike the idea of running narrower tires in the back to "correct" understeer. When you do this you make the car feel better by taking AWAY traction in the back. Overall I would bet you end up with a slower setup. However, in a school enviroment that may be the best for learning. It will depend on your objective.

I think the best approach (for lap times) is to keep the stagger and work on slow in / fast out or start playing with suspension settings.

Brad Otoupalik (evosport)
05-23-2002, 01:25 PM
the power issue is not bad, especially with race rubber!

Thanks

Brad

Enigma
05-23-2002, 01:35 PM
I agree that understeer is a problem. However, I don't agree that the solution is to take away traction from the rear of the car. I would much rather try to find ways to either leverage the surplus traction or add additional traction to the front of the car to balance it.

sean smith
05-23-2002, 01:57 PM
Note: My 17x8 BBS RK's from my E36 M3 fit very nicely on the E46 M3........


Sean

Brad Otoupalik (evosport)
05-23-2002, 02:13 PM
While I agree that you want more tire up front, there are more advantages to a non-staggared set-up then dis-advantages.

With a stagared set-up you cannot rotate to ensure even tire wear. You will be understearing regardless of how much camber and suspension tweaking you can do.

Ideally, a 9" to 10" wheel all the way around with 255 race tires (which equates to a 265 street tire) to a 275 race tire! This set-up would be so nice!

Thanks

Brad

Brad Otoupalik (evosport)
05-23-2002, 02:16 PM
We have a couple of race cars with the same power at the wheels with only 255 Kumho's or 245 Hoosier's with really no problems. Yes, you have to feather the throttle sometimes, but that is part of racing!

Yes, more tire is better, I agree completely. In my experience, it is not that much of an issue.

No worries!

Thanks

Brad

thebishman
05-23-2002, 05:44 PM
Dave,
I have what I consider the perfect track set-up for the M3. BBS RK's; front in 8.5*18 and 10*18 rear, both shod with Hoosier R3S03's. (245/40ZR18 front with 275/35ZR18 rear). Wheels are perfect; tyres only have 2 days use on them. If you're interested, I'll make you a great deal. No spacers required! The RK's are a great wheel for the track in that they're very light, but strong.
thebishman

Dedalo
05-23-2002, 09:18 PM
Do you happen to know the offset for those 17's? Thanks


Roadfly Home | Car Reviews | Forum Archives Index