what can i fit on stock rims

[amerimuscle]

what are the biggest tires you can fit on stock rims... my friend has a s.s camaro and obviously they dont have issues lol...and he was arguing with me over what i can hypothetically fit in the back... im assuming i can prolly fit like 265s on the stock tire in the back... i need help i dont really wanna get new rims i love the stock rims and i dont wanna rice up my car...although i race alot and traction issues are gettin on my nerves cuz his ass just takes off on me from the launch ...

[LS2GTO05]

I have 255-40-17s on my baryen 17-8 wheels

[rajavah]

i have 255/40r17's all the way around, no problems in the rear but i had to add a small spacer in the front

[Braz'in06]

Got 275/40/17's on the rear.:)

[luisvelasco02]

I run 275/40/17 nittos in the rear when I go to the track and no problem they fit find.

[sccaGTO]

There are several people on the forum running 275s in the back on the stock rims. I have chosen to run 275s on 9" rear wheels. :D

[Lorider680]

275 on back. I wouldnt change the front......playin with fire.
CHuch

[caritter3]

Got 275/40/17's on the rear.:)

Stocker 17s? Any fender rolling or drag bags or stiffer rear springs?

[Magnified]

On 17 x 8 stock wheels in the rear I had 275 BFG drag radials. Two problems: 1 - even with drag bags when the car would hit a heavy bump or bridge expansion gaps it would bounce down far enough for the outside fender edge to rub the tire. 2 - around 80 mph or so both under hard acceleration and highway cruising I got major sidewall flex and oscillation that I have never experienced with any other tire. Felt dangerous; in particular it felt as though if the car fish tailed it might roll the rubber right off the wheel. So off the came while I get a wider rear wheel.

Come to find out, after checking with BFG, they do not recommend using anything smaller than a 9 with their 275 drag radials. I'm going with a 9.5. Still some overhang on both sides, but much less and with a high offset it should still mount without problems.

Hope this helps.

LR

[GT joe]

On 17 x 8 stock wheels in the rear I had 275 BFG drag radials. Two problems: 1 - even with drag bags when the car would hit a heavy bump or bridge expansion gaps it would bounce down far enough for the outside fender edge to rub the tire. 2 - around 80 mph or so both under hard acceleration and highway cruising I got major sidewall flex and oscillation that I have never experienced with any other tire. Felt dangerous; in particular it felt as though if the car fish tailed it might roll the rubber right off the wheel. So off the came while I get a wider rear wheel.

Come to find out, after checking with BFG, they do not recommend using anything smaller than a 9 with their 275 drag radials. I'm going with a 9.5. Still some overhang on both sides, but much less and with a high offset it should still mount without problems.

Hope this helps.

LR

What you had was definitely a defective tire! Ive had mine on for over 1 year, and never noticed any problems with deflection or any type of handling for that matter. BFG is a pretty crappy tire to begin with,so Im not surprised you had a problem with the tire(not the size).Ive had the front tire tread peel on the stock 245's and the 275's on the rear are bald but otherwise have given no problems.BFG recommends a 9-11 inch rim but its been done on 8 inch rims by many for decades with no problems. Putting spacers on cars to bring wheels out is probably more of a problem than using a wider tire on a rim that is not the recommended size(as long as rim is at least 8") It would be great to get a 9-10 " rim on these cars that was still a 17" dia. and looked as good as the stocker, but no one makes one yet.

[Magnified]

What you had was definitely a defective tire! Ive had mine on for over 1 year, and never noticed any problems with deflection or any type of handling for that matter. BFG is a pretty crappy tire to begin with,so Im not surprised you had a problem with the tire(not the size).Ive had the front tire tread peel on the stock 245's and the 275's on the rear are bald but otherwise have given no problems.BFG recommends a 9-11 inch rim but its been done on 8 inch rims by many for decades with no problems. Putting spacers on cars to bring wheels out is probably more of a problem than using a wider tire on a rim that is not the recommended size(as long as rim is at least 8") It would be great to get a 9-10 " rim on these cars that was still a 17" dia. and looked as good as the stocker, but no one makes one yet.


I'm going with a Camaro SS wheel for the drag tires. 17 x 9.5; no problems with lug fitment and only a very thin hub centric ring needed, and with the fender rolls and an over 50 offset there shoudl not be a problem. I tend not to think it was defective rubber, both tires exhibited the same behavior. I think I may just have a higher standard in what I will accept from my tire (heard a similar complaint from a friend of mine with a 911). Anyway, when the DRs go on the new wheels and hit the track the first time, we'll see what happens.

LR

[brazenorange06']

what are the biggest tires you can fit on stock rims... my friend has a s.s camaro and obviously they dont have issues lol...and he was arguing with me over what i can hypothetically fit in the back... im assuming i can prolly fit like 265s on the stock tire in the back... i need help i dont really wanna get new rims i love the stock rims and i dont wanna rice up my car...although i race alot and traction issues are gettin on my nerves cuz his ass just takes off on me from the launch ...

I have 18's and want to know the same thing. please post any info on the stock 18's

[LS1_GTO]

275/40/17 sumitomo sp? and they still dont hook for shit

[GT joe]

I'm going with a Camaro SS wheel for the drag tires. 17 x 9.5; no problems with lug fitment and only a very thin hub centric ring needed, and with the fender rolls and an over 50 offset there shoudl not be a problem. I tend not to think it was defective rubber, both tires exhibited the same behavior. I think I may just have a higher standard in what I will accept from my tire (heard a similar complaint from a friend of mine with a 911). Anyway, when the DRs go on the new wheels and hit the track the first time, we'll see what happens.

LR

2 questions..1- was the tire rubbing the fender only when the 275 was mounted on 8" rims?
2- When you rub at 80 or on hard launches,did it rub on the lips of the fender or are your fenders rolled/cut?
Reason I ask is that with all the flex in the world, if installed with all proper modifications,275's shouldnt rub the lip if the sidewall flexes.It would probably rub due to insufficient clearance or weak suspension.Wider rim will not prevent rubbing (might even cause rubbing if offset is incorrect)
Of course the 9-11 inch rim is what you should use. But to say you feel deflection and oscillation to the point of fish tailing out of control, is due to the 275 on 8 inch rims is hard to believe.Ive driven my car harder than anyone should and havent felt it to be dangerous in any condition(incl. snow and rain)
But then again ... I have lower standards........ but they are high enough to avoid buying BFG's ever again.

[Magnified]

That's not what I meant, and I was talking about more than one thing. The rubbing (bumping) of the fender on bumps and expansion joints was a product of not having the fenders rolled (some have gotten away with 275s with no rubbing, or, rubbing on only one side, which is strange to me). These would rub when huge up and down body oscillations occured. They did not rub on hard launches and the sidewall flex was not part of this problem.

The sidewall flex is the cause for the 80 mph cruising and 80 mph under hard acceleration oscillation. It didn't happen at launch, but when you hit around 80 mph. And, as stated, the amount of flex was large enough that had the car fish tailed or had to maneuver violently for some reason (say, to avoid another car or what have you) that the rubber might have rolled off the rim. And this is a symptom of severe flex caused by narrow wheel. The test will be the new 9.5s at the track. Car comes back Thursday, new wheels get here ?

And, I'm not saying my standards are higher than yours - just for the record, that was badly phrased. It was meant in the context of me being more anal and unwilling to accept any vibration or flex at all (many are not so anal about that). I am used to 100% rock solid at all times; its what I like and expect. Our standards of what we find acceptable may be different (or they may not be), either way it doesn't mean one way is better than the other.

Later all,

LR

[all4goat]

I have 18's and want to know the same thing. please post any info on the stock 18's

^^^^What he said...someone throw some info about stock 18's please.

[Slowgtols2]

I was running 315 BFG dr's on my 2002 camaro ss with stock wheels and had the same problem at high speeds. that rear end would "float" all over the road at speeds in excess of 80mph, it felt very unsafe but the tires were damn good at hooking up.

Anyone know what it takes to run a 315 on a gto? I've read it's been done with spacers under the rear coil springs. If this works i'll be doing it asap because I can't get any traction on the bottle.:drink: