What is the widest size tire we can put on with out rolling the fenders?

[JonnyG2132]

What is the widest tire we can put on the car without rolling our fenders on a lowered car, SLP kit, with 18 inch rims. 285?

Thanks
Jon

[Trent]

Unfortunately no one can really answer that question without knowing the offset of the wheel and the full specs on the size of the tire you are going to run. That 2nd number in the tire size is every bit as important as the first and without knowing offsets, can't really answer either.

[JonnyG2132]

stock rims and stock diameter

[TireDoc]

A 285 would need at least a 9.5" wide wheel, not sure what the OE wheel is but I'm pretty sure they are not that wide

[jeppsG8]

I'm no expert, but I'd be surprised if you could get 285s on the stock 18" rims. My own experience (not sure if it helps or not) is that I periodically rub with the Eibach springs with 275s on my 19" Petrols, with 4 adults in the car.

[JonnyG2132]

i have 275s on now with no problem

[polo]

A 285 would need at least a 9.5" wide wheel, not sure what the OE wheel is but I'm pretty sure they are not that wide

They're 8" wide

[Slizzo]

i have 275s on now with no problem

That's usually as wide as you can go without modification.

However CTS-V wheels will take the larger tires without rolling due to it's almost perfect offset for our cars. I think a 285 on those would be OK. Some of the owners of CTS-V wheels here could tell you for sure.

[JonnyG2132]

Thank you. Thats what I wanted to know

[stryker g8gt]

My Evo12 that are 275 don't rub, but my Kumho 275 will make contact on a bad bump. I am slightly lowered and rear lip is rolled.

[SpeedRacerX]

mtolivecracker had the widest setup on a lowered car without rolling that I have come across. He ran widened Camaro 8" wheels, widened to 10" with a 295/30-20, lowered on Eibach springs which should be nearly identical to SLP springs and did not rub inner or outer. His offset is 60mm. In fact, he added the same 5.5mm spacer that I have so he turned his +60 offset into a +54.5mm and last I heard he still does not rub the fender lip.

http://forum.grrrr8.net/showthread.php?t=17834&highlight=widened+camaro

It's all in the offset.

To squeze a big tire on the back without rolling and cutting, you need wheels in the +55 to +60 offset range. HSV's are +57 as an example.

[Slizzo]

mtolivecracker had the widest setup on a lowered car without rolling that I have come across. He ran widened Camaro 8" wheels, widened to 10" with a 295/30-20, lowered on Eibach springs which should be nearly identical to SLP springs and did not rub inner or outer. His offset is 60mm. In fact, he added the same 5.5mm spacer that I have so he turned his +60 offset into a +54.5mm and last I heard he still does not rub the fender lip.

http://forum.grrrr8.net/showthread.php?t=17834&highlight=widened+camaro

It's all in the offset.

To squeze a big tire on the back without rolling and cutting, you need wheels in the +55 to +60 offset range. HSV's are +57 as an example.

Yup, and CTS-Vs are +56mm (on the 19x9.5" rear)

[I12XLR8]

So, can I put 285/30/20's on my 9" Camaro rears? I've got the standard 275's on there now and will be dropping the car about an inch once the coil-overs come in.

[ULTRA Z]

285s fit the stock wheel with no issuse but on the rubbing with a lowered car can't answer that

[polo]

So, can I put 285/30/20's on my 9" Camaro rears? I've got the standard 275's on there now and will be dropping the car about an inch once the coil-overs come in.

I have 285/30/20's on my Camaro rears. Mine don't bulge at all, but depending on the brand you go with you may get some slight bulge with the 285. I would think you would definitely get rubbing once you lower the car, unless you roll the fenders.

[I12XLR8]

I don't mind a little bit of bulge, especially on the face side of the rim. Right now with the 275's if the tire falls on it's face it lands on the rim!

I'll have the car lowered on the 275's for most of the summer so will see how my rubbing is/how close I am to rubbing. For the time being I've only got two kids in the backseat in car seats so extra rear weight is minimal.

[Executor999]

JonnyG2132,
Do you have any rubbing issues with being lowered and 275/40/18's all the way around? Improved traction over stock 245/45/18's?

[JonnyG2132]

JonnyG2132,
Do you have any rubbing issues with being lowered and 275/40/18's all the way around? Improved traction over stock 245/45/18's?

No rubbing at all until I added the TSW rims. I ran 275s lowered on stock rims with no issues at all. Yes, there is definitely improved traction with 275s over the stock size tire

Jon

[DarkPhoenix]

I have cts-v wheels with 285 tires out back with no rubbing. I am also lowered on peddlers struts and springs. It looks great with no rubbing!

[Tulsa GT]

Any thoughts on if 295's would fit on rear HSV GTS rims? Car is lowered.

[skinsfangreg]

Any thoughts on if 295's would fit on rear HSV GTS rims? Car is lowered.

I'm almost positive that 295's will fit with the HSV wheels. I have 285's on mine and plan to try 305's when I buy new tires. My fenders are rolled and I believe I can fit them. I think 295's would fit but any bigger would likely rub unless you roll.

[landsarmstrong]

I ran 295s for awile
Went back to 285 when I dont have 26" DRs on

[Tulsa GT]

So it wotkd be 295/25r20?

[landsarmstrong]

So it wotkd be 295/25r20?

Yes

[skinsfangreg]

So it wotkd be 295/25r20?

I wouldn't go with a 25 aspect ratio. I'd stick with 295/30/20 since that's a 26.9" and the stock size is 26.7".
A 295/25/20 will be 25.8" and nearly an inch shorter. I think anything -/+ 1" will not trigger and abs fault but that's too far off for my liking.

If your changing all 4 tires together, you could go with a 255/35 up front to keep them in line with the rears. But the small difference in size (.25") between front and rear should be fine

[thebeast]

I had a 315/35-17 on weld drag rims and they fit fine with room to spare. Didn't need to roll fenders either.

[fengstang]

i dont get it. whats wrong with rollin the fenders?

[Tulsa GT]

Now I see that on tire specs they have a 295 requiring a 10" wide wheel.

The HSV's are only 9.5".

Problem, or still work?

Good info about the 30 vs 25 aspect ratio, thanks.

I guess theres nothing wrong with rolling the fenders.

One of my pilot super sport looks like it is getting a bit of belt separation and was thinking if I wanted to try to get a size bigger when I have to buy.

Was just figuring how much work to go from 285 to 295 or even wider with my wheel setup. The next compatible size up on the Pilots is a 325/25R20...but that says it needs a 11.5" wide rim. So that will prob not do while I still have these wheels.

[SpeedRacerX]

Now I see that on tire specs they have a 295 requiring a 10" wide wheel.

The HSV's are only 9.5".

Problem, or still work?

Good info about the 30 vs 25 aspect ratio, thanks.

I guess theres nothing wrong with rolling the fenders.

One of my pilot super sport looks like it is getting a bit of belt separation and was thinking if I wanted to try to get a size bigger when I have to buy.

Was just figuring how much work to go from 285 to 295 or even wider with my wheel setup. The next compatible size up on the Pilots is a 325/25R20...but that says it needs a 11.5" wide rim. So that will prob not do while I still have these wheels.

Your Clearance Concern: In addition to the advice you're seeing here, Post #11 in this thread will show you that based on HSV offsets and tire width, it will work for not rubbing and lowered.

Your Rim Width Concern: If you are worried about 10" rim versus 9.5" rim for a 295, don't worry about it. I run a 285 on a 9.5" rim and I could easily and safely run a 295. If the BFG KDW 295 wasn't so expensive in a 295/35-19, it would be on my car. Also, I've seen guys with CTS-V Sedans run 305's on their rear 9.5" wheels so yes, a 295 will work on a 9.5" rim.

[It's A G8!]

I read on one of the cts-v forums that the cts-v coupe's rear wheels are 10" wide. So a 305 would fit nicely on them. I have the 295/30/20 on widen camaro wheels.

[Slizzo]

I read on one of the cts-v forums that the cts-v coupe's rear wheels are 10" wide. So a 305 would fit nicely on them. I have the 295/30/20 on widen camaro wheels.

Offset on that wheel is a +40 though, so it won't tuck nearly as well as a sedan/wagon wheel.

[Tulsa GT]

So, for CTS-V wheel, what is widest setup in rear? Front as well for that matter?

What was offset of CTS-V again?

[lloyd]

hi guys i have team dynamics equinox wheels on my vxr8 they are 9.5 by 20 inch with a 40 offset and i run 275/30/20 front and back with no problems
http://i577.photobucket.com/albums/ss212/ricklloyd/20052012305.jpg

[lloyd]

orhttp://i577.photobucket.com/albums/ss212/ricklloyd/DSC_0024.jpg these same make and size

[Slizzo]

So, for CTS-V wheel, what is widest setup in rear? Front as well for that matter?

What was offset of CTS-V again?

19x9 +51et front, 19x9.5 +56et rear (sedan/wagon), 19x10 +40et rear (coupe)

[Slizzo]

hi guys i have team dynamics equinox wheels on my vxr8 they are 9.5 by 20 inch with a 40 offset and i run 275/30/20 front and back with no problems
http://i577.photobucket.com/albums/ss212/ricklloyd/20052012305.jpg

Had a 20x9.5 +40et with a 285mm wide tire and it rubbed on bumps with weight in the rear of the car.

[Jack The Pumpkin King]

So you guys are running 20x9.5 in the front with a 275 tire? Sweet, I always thought that rim width was too much for the front.

[Slizzo]

So you guys are running 20x9.5 in the front with a 275 tire? Sweet, I always thought that rim width was too much for the front.

Nope, as long as you have the correct offset it doesn't matter. 20x9.5" with a +40mm offset is a perfect size to fit up front with a 275mm wide tire. Will not interfere with stock suspension at all.

[efraingbnl]

How about for 19 stock wheels whats a good size i was thinking 285/40/19 but wasent sure how that would fit

[BlakRam]

So you guys think a kdw2 295/35/19 will fit on a VMR 710 19×9.5 with 50 offset?

[Slizzo]

How about for 19 stock wheels whats a good size i was thinking 285/40/19 but wasent sure how that would fit

I wouldn't go wider than 255mm on a stock G8 wheel, it's only 8" wide. Others have done it but I personally will never recommend it.


So you guys think a kdw2 295/35/19 will fit on a VMR 710 19×9.5 with 50 offset?

295mm wide tire is a little too wide for a 9.5" rim, but the +50 offset is a good number for a 9.5" wide rim.

[BlakRam]

This is killing me lol. Half say yes, half say no. What would the concerns be for running the 295?

[Slizzo]

This is killing me lol. Half say yes, half say no. What would the concerns be for running the 295?

Tire rolling off the rim.