maxattack

Hey guys,

I am looking to do a square set up using 18" wagon wheels on my C5 for track use. I know the conventional "rules" say you should not use wider than a 285 on the stock rear wagon wheels, but has anyone used a 305 without issues? Finding matched sets of 285 or 295 r comps is not as easy as I thought it would be.

Thanks,
Brandon

AU N EGL

Turn off TC & AH would be advised.

I ran GY 18x25.5x11 1/2 on all four corners with out problems.

Pushed a bit in the corners until the tires were warmed 1/2 lap or so

tstar

Would 305s be an issue with the DRM air ducts??

AU N EGL

Only if you turn lock to lock. So dont turn Lock to lock


I run 18x305/30 on the front now, and 18x335/30 rear

tstar

Yeah but you're special!!! My luck I'd crack my damn DRM ducts!

They would be track only tires so that would work... Maybe a tad smaller though, I'll have to check and see which ones are easier to get on a day to day basis in scrubs...

Thanx Tom!

Tim

AU N EGL

Brake ducts are like rotors, expendable every few years




Track wheels left, 18x305/30 on 18x12, and 18x335/30 on 18x13
Street wheels right 18x275/35 on 18x10 and 18x335/30 on 18x12

AU N EGL

Tim

See what Joe and Phoenix Performance sells. He sell quite a few scubbs a year.

Not sure how far you are from Phoenixville

tstar

Four or Five hours... Just far enough to incur a freight charge.

Thanx for the info, I'm going to check with Todd at GT Tires also.

Tim
PS I had those new Brakes really cooking last Sunday, found the limit on the Sport pads...

maxattack

Thanks guys, I think I will shoe horn those 305's on there and give it a shot.

Brandon

hamdog

Those wagon wheels are heavy. Invest in a set of used C5Z Speedlines or Alcoas. You can find them for under $400.

froggy47

I picked up some used a6 335's to try on my stock 10.5 x 18 rear rims.

Do you run a spacer to clear the tub? How thick? Thanks.

I'm on stock bolts & not lowered "all the way" in the rear. I am all the way down on the front stock bolts.

AU N EGL

Froggy

My street rear rims are 18x12 with the 18x335/30 Mich PS they rubbbed the inner liner out on cornering

my track rims are 18x13 and 18x335/30 hoosiers GAs Needed a 3/8" spacer and loner ARP studs to fit.

Gordy M

You can run the 295 A6 Hoosier's on all four corners without problems, be sure to turn the TC off or at least run in competitive mode.

Gordy M

I have a set of 285/295 scrubs sitting in my garage. I was always going to mount them but have not yet done them.

froggy47

Thanks,

I am going to try squeezing the 335's on a stock (10.5) rim so will have to experiment with some spacers. I have run 315's with no spacer & they clear fine. I think a 1/4 or a 3/8 should do.

VetteDrmr

I've run 305s on 18" WWs for years without problems. Haven't had any problems with rubbing, but I don't usually go to the limits when parking.

And, having both a set of WWs and Z06 rims, their weight isn't that different, and the WWs are half the price.

HTH, and have a good one,
Mike

tstar

Does that mean you want to sell them?

Tim

kimmer

That's pushing it, watch out for roll.

Everett Ogilvie

18X12 on the front, nice! - what did you have to do to fit that large wheel up front?

AU N EGL

-2.0* camber


and they still stick out a bit