4doortypels

iTrader: (39)

does anyone know the max tire width?? i have a set of the GM optional wheels that i was thinking of having widened to a 10 inches and was wanting a 315 on it it if it can take it... but i had a set of 275 on the 8.5. also wondering if a 285 or 295 could be streched... any one go wider... what spaces did you use if any... any one who gone wider post it up... would greatly appreciate it...

SoJersey05V

Search. It wont be big.

Stepside

On a V1 . . for the rear: 285/35/19 or 295/30/19 and that is keeping the diameter within 3% or less of stock diameter.
Basically any tire with a treadwidth "wider than 10 inches" and within 3% of stock diameter, you're have a problem.
315s idea??? Scrub if you're not willing to Tub.

tony tone

i tuck a 285/25/20 nitti invo on a 10.5 wheel and clearance is <1mm... if i drive aggressively i'll actually scrape a little sidewall... i won't hear/feel it, but i'll notice it on the tire itself.

itsslow98

iTrader: (18)

Between the trailing arm and the fender flares if you try and stuff a 315 on a 10 inch wide wheel its gonna look horrible. I dont see more then a 275 working on a 18x10 wheel.

JSmitty53

I can't wait to buy a ctsv.

rjoffe

http://www.ctsvparts.com/tire-sizes

Mercutio

I ran 295/30-18s on 18x9s on the rear of my car with no problem.

liqidvenom

iTrader: (2)

i think if you are stock height you might be able to get away with some tire, but lowered some times if i launch i will notice a bit of rubbing on my 275's.

tommycompton

iTrader: (1)

Here's whats going on mine

Got my stockers widened to 10", tires are 295/35/18.
I have MAP trailing arms for extra clearance, 5mm spacers just incase. I'm also lowered
2" in the rear.

Stepside

After you get those 'big meats' on, be sure to come back and give us the skinny on the 'good', 'bad', & ''ugly'. But, only after a good test drive . . hopefully not bad or ugly.

yooperLS6

4doortypels

iTrader: (39)

i appreciate all the feed back... just looking for the easy route... cause i dont wanna over widen a stock wheel but if you can get a 295 thats wide enough... may go with a 275 radial, not sure...

itsslow98

iTrader: (18)

Not trying to be a buzzkill, but i just dont see you NOT rubbing on hard turns or with any weight in the car.

tony tone

if the sidewall would've been smaller i would disagree... but considering the 285s i have run a 25 sidewall and are literally up against my inner fenderwall leaving <1mm of clearance and these being wider and taller, i'd say you're right.

tommycompton

iTrader: (1)

Talked with Den, he's the guy running the same set up on the V parts page. He has no problems and even figures he can run without a spacer. My spring rates for the rear is much stiffer than stock, I also plan on getting BMR toe rods to help with camber flex. I figure it should work out, if I need to mod anything I will. I was going to go with a 285 tire untill Den answered a few questions I had.
Rims are off to be powder coated soon, as soon as my V comes out of hibernation I'll post the results.
The tire diameter is smaller than stock, so I won't be up into the fender any more than stock, also the 5mm spacers I have will push the tire towards the outter fender.

TheLAW

iTrader: (4)

Subscribed.

LAW

tommycompton

iTrader: (1)

You are also slammed lower than me, plus what is your offset? saying your set up with a different offset wouldn't compare to mine.

JJSimon904

iTrader: (8)

cant wait to see the results! I'm about to put new tires all around and wanted to go wider than 275 in the back if possible. If I have to widen the rear wheel, get spacers and new trailing rods then so be it

GREG O.

iTrader: (4)

I had a pair of new 285/35/18's just laying in my garage. While my stock rims were being widened, to check for clearance purposes, i had them mounted on a set of stockers 8.5...handled like ****, almost rolled the V twice....but they did not scrape anywhere and i am lowered 2"...i let about 10lb. of air in ea. tire and it handled much better but still unsafe when braking in and out of traffic...My new rims are done and they are at 9-3/4"..These will fit with the garbage MAP trl. arms and the 285's but,, i might try 295's...The 295's require a min.10" rim, but i hope just an 8th of an inch on ea. side pertruding will not affect the handling or have any fitment issues.. It will be weeks b/4 my engine swap to test drive but i will get back with the results of the 295's...BTW: if my rims were widened to 10" i would need a small spacer cause it will hit the stabilizer bar....IMO: if u are going to widen stock rims, go to 9-3/4 to be safe...i learned the hard way and had them widened then narrowed back to 9-3/4" at a cost of $1,250....so don't make the same mistake i did....