Last year I put on GT2 size tires (235/40/18 - 315/30/18) on my 996TT and went throught one set on Michelin PS2 street and one and a half set of Michelin Cups... and I loved both tires...

HOWEVER, the larger tires did rub in the wheel well, making a couple of burnt holes. unfortunate but no big deal.

NOW, I am putting in a new suspension and slamming the car down and some camber, I fear that the rubbing will be pretty bad.

Did your tires rub when you guys put in the GT2 sizes? what did you do about it? rollback the wells? spacers?

 

even GT2 rubs if u run a aggressive camber. we've put 5mm spacers in the past to prevent the issue. like u said it's not a big deal but when u set up the car just make sure everything is right & not rubbing too much. roll the fenders as well i suggest.

 

A lot of this can be cured with a proper wheel offset..And the proper wheel..

We run a 18x12 with and our car is SLAMMED.... CUP CAR Spec ride height..

No rubbing issue...

 

Right on ............. we fitted 18 x 12.5's in the rear.

 

I'm curious then - what offset (without the use of spacers) would be appropriate, both front and rear?

 

no rubbing...

 

Arling,
5mm spacers in the rear of a GT2 to prevent rubbing?

 

inside, not outside. tire burned a hole on the plastic inner wheel well. 5mm spacer was the solution for the owner since he was running factory wheel not aftermarket custom wheel. it only worked on that specific car we aligned and we used the 5mm spacers to fine tune it.

 

Got it, my father has been getting rubbing on the rear of the GT2 with factory wheels with track 315"s. I guess they are wider than the PS'2.

 

Thanks you for your replies.

I think the wheels are a big part of the issue, I think I have no problems with the BBS gt3 cup wheels I use for the cup tires... I think the problem is with the stock wheels with gt2-size PS2s... I've been trying to avoid buying a third set of wheels.

If I put spacers on the stock wheels, what is the downside to spacers? will they get in my way as I frequently swap wheels?

also, curious about your feel with the bigger tires, given the taller sidewalls (at least visually) did you guys feel any lower steering response (already pretty bad on these damn VWs)? I didn't feel much lower steering response and bigger patches are always good, so I'll keep using the 235-315 setup.

again, thanks.

 

Anyone know of a fender rolling tool that will work on the rear of a turbo besides a baseball bat? Also what is best procedure for doing? Mine don't rub but less than a fat finger of clearance. Too close for comfort.

 

There is a tool called Fenderoller that you can rent. The Tirerack has one but the wait list is like 2 years long. It can be purchased for about 300 bucks or if you search on Ls2.com there are usually 1 for rent for about 60 dollars.
I used on on my Firebird about 2 years ago and it worked great. You will need a heat gun to soften the paint so that it will be less prone to cracking.

It is sold by the Eastwood company. http://www.eastwoodco.com/jump.jsp?i...emType=PRODUCT

 

I have the GT2 wheels and tires...car lowered track monthly track events....no rubbing!

 

We stopped the roller loaning program. Now we just sell them. $300 each.

 

Keep in mind that, according to Michelin, the Cups are 6/10" of an inch wider than PS2's of the same size. My 315 Cups rubbed on my car, while the 315 PS2's on the same wheels did not.