REAR WHEEL MAX SIZE - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Nine Ball · 07-18-2010, 09:06 PM

Yes, offset is the distance measured from the center line of the wheel width to the backside of the lug pad. However, I said the wheels would not fit the same. You are correct that both 9 and 10 inch wheels would be centered relative to eachother, but the outward appearance of the wheel relative to the fender edge will not be the same. The narrower wheel will tuck in more, given the same exact offset.

The aesthetic way to fit a wheel is to push the offset out so that the tire sidewall is about flush (or just inside) the max width of the fender opening. Assuming proper matching sized tires and wheels, of course. Then any additional wheel/tire width is added to the backside of the wheel, towards the inner fender.

So, we prefer to use the outer face of the wheel as the baseline reference, then measure back towards the center of the vehicle. This gets you maximum lip depth, and the best fitting tire track width.

Just depends on what you want, I suppose.

blackknight · 07-18-2010, 09:10 PM

All this talk of fatty rear tires and no pics... shameful

edneyens · 07-18-2010, 09:40 PM

Quote:

Originally Posted by Nine Ball

Yes, offset is the distance measured from the center line of the wheel width to the backside of the lug pad. However, I said the wheels would not fit the same. You are correct that both 9 and 10 inch wheels would be centered relative to eachother, but the outward appearance of the wheel relative to the fender edge will not be the same. The narrower wheel will tuck in more, given the same exact offset.

The aesthetic way to fit a wheel is to push the offset out so that the tire sidewall is about flush (or just inside) the max width of the fender opening. Assuming proper matching sized tires and wheels, of course. Then any additional wheel/tire width is added to the backside of the wheel, towards the inner fender.

So, we prefer to use the outer face of the wheel as the baseline reference, then measure back towards the center of the vehicle. This gets you maximum lip depth, and the best fitting tire track width.

Just depends on what you want, I suppose.

Nine Ball, I agree the 10 inch wheel will have deeper dish effect and have its outside edge closer to fender opening.

My point was that the position of the tire and the clearance around the tire would be the same for both wheels.

So you are making a point that the appearance factor is a big issue for most and it should not be over looked. Could not agree more...

edneyens · 07-18-2010, 09:45 PM

Quote:

Originally Posted by blackknight

All this talk of fatty rear tires and no pics... shameful

Here are my 305s on a 20x10 with +40mm offset.

2010 SSRS · 07-18-2010, 11:00 PM

Quote:

Originally Posted by edneyens

Here are my 305s on a 20x10 with +40mm offset.

that looks awesome

Berean · 07-19-2010, 12:00 AM

I have 20x8.5 +35 and 20x10 +40.

What are the max tire sizes I can run on those?

CamaroFTW · 07-19-2010, 02:23 AM

Quote:

Originally Posted by edneyens

Here are my 305s on a 20x10 with +40mm offset.

Great stance and looks fantastic.

NinoSS · 07-19-2010, 02:39 AM

Quote:

Originally Posted by CamaroFTW

Great stance and looks fantastic.

PatrickfromMD · 07-19-2010, 11:03 AM

Quote:

Originally Posted by Nine Ball

Yes, offset is the distance measured from the center line of the wheel width to the backside of the lug pad. However, I said the wheels would not fit the same. You are correct that both 9 and 10 inch wheels would be centered relative to eachother, but the outward appearance of the wheel relative to the fender edge will not be the same. The narrower wheel will tuck in more, given the same exact offset.

The aesthetic way to fit a wheel is to push the offset out so that the tire sidewall is about flush (or just inside) the max width of the fender opening. Assuming proper matching sized tires and wheels, of course. Then any additional wheel/tire width is added to the backside of the wheel, towards the inner fender.

So, we prefer to use the outer face of the wheel as the baseline reference, then measure back towards the center of the vehicle. This gets you maximum lip depth, and the best fitting tire track width.

Just depends on what you want, I suppose.

Nine Ball,

In your opinion, what offset produces the best lip (farthest out before the tire hits the fender) for both 11 and 11.5 inch respectively (assuming a 315 tire)

se7en · 07-20-2010, 04:38 AM

Quote:

Originally Posted by edneyens

bws_82, not intending to be offensive, however, I think you are pushing it to far recommend putting a 305 tire on the stock wheels. The recommended ranges for the 9 inch wheel shows a 295 tire as the largest tire for a 9 inch wheel, I would not recommend anything larger for a tire on the stock wheels.

Here are the recommendations:
295 tires: 9 to 11
305 tires: 9.5 to 11.5
315 tires: 10 to 12

I would recommend staying mid to wide side of the width range when buying wheels for the tire size you want to use.

Read it again.... i wasnt saying to put 305's on, i was saying i would never put anything bigger than a 305 on a stock rim. There are plenty of Camaro's on here and out there running a 305 on stock rims. Does that make it right? NO... but it is possible and you can run it at your own risk.
I dont know of anyone that's had any problem running a 305 on a stock rim (9inch).

SGOS252382 · 07-20-2010, 07:40 AM

Based on these recommendations (Camaro5), 305s require a wheel that's 1'' wider than stock.

Recommended 20" tires for 2010 Camaro
245/45-20 = 28.7" tall, 8.0-8.5 wheel
255/45-20 = 29.0" tall, 8.0-8.5 wheel
265/40-20 = 28.4" tall, 8.5-9.0 wheel
275/40-20 = 28.7" tall, 9.0-9.5 wheel
285/40-20 = 28.9" tall, 9.0-10.0 wheel
295/35-20 = 28.1" tall, 9.5-10.5 wheel
305/35-20 = 28.4" tall, 10.0-10.5 wheel
315/35-20 = 28.7" tall, 10.5-11.0 wheel

Berean · 07-20-2010, 11:57 AM

Thanks for posting the wheel heights. Makes me think I should run 265 front and 285 back just to get a little extra height in the rear wheel well.

SGOS252382 · 07-20-2010, 12:12 PM

Quote:

Originally Posted by Berean

Thanks for posting the wheel heights. Makes me think I should run 265 front and 285 back just to get a little extra height in the rear wheel well.

The problem is there isn't much offered in a 285/40/20 size. If there is someone please let me know.

There's a pretty nice selection of 285/35/20 tires, but thats a smaller diameter than stock (28.1''). You'd need a similar diameter tire up front like a
255/40/20.

You'd have less height in the wheel well. But a smaller diameter tire will add gearing to the car.

PatrickfromMD · 07-22-2010, 03:50 PM

315/30-21 rear, 285/35-20 front

too bad no one makes that combination

07-18-2010, 09:06 PM	#15
Nine Ball Drives: 1969 & 2016 Camaro SS Join Date: Oct 2008 Location: Houston, TX Posts: 3,849	Yes, offset is the distance measured from the center line of the wheel width to the backside of the lug pad. However, I said the wheels would not fit the same. You are correct that both 9 and 10 inch wheels would be centered relative to eachother, but the outward appearance of the wheel relative to the fender edge will not be the same. The narrower wheel will tuck in more, given the same exact offset. The aesthetic way to fit a wheel is to push the offset out so that the tire sidewall is about flush (or just inside) the max width of the fender opening. Assuming proper matching sized tires and wheels, of course. Then any additional wheel/tire width is added to the backside of the wheel, towards the inner fender. So, we prefer to use the outer face of the wheel as the baseline reference, then measure back towards the center of the vehicle. This gets you maximum lip depth, and the best fitting tire track width. Just depends on what you want, I suppose. __________________ Fquick.com/NineBall

07-18-2010, 09:10 PM	#16
blackknight Camaro Lover Drives: 2014 GMC Sierra 5.3L Join Date: Feb 2010 Location: Chicago 'Burbs Posts: 709	All this talk of fatty rear tires and no pics... shameful __________________ No Camaro right now. But I'll be back in one in a few years.

07-22-2010, 03:50 PM	#28
PatrickfromMD Drives: Buick Enclave/Corvette/2010 Camaro Join Date: Aug 2008 Location: Maryland Posts: 421	315/30-21 rear, 285/35-20 front too bad no one makes that combination __________________ *56K miles and still going strong* 2SS/RS IOM ext w/cyber grey stripes, tinted windows, IO int Auto ProTorque prototype Converter, Chuck Mosello of Westchester Corvettes Custom Tune T&T installed SLP Longtubes, Powerflow X Pipe, and Powerflow axle back JL 10W3 in custom side sub box, new door tweeters, Alpine 5ch 600 watt T&T configured ACS front Fascia w/ heritage grill, splitter, dual color halos, , led markers, taillight bezels , all accented in CGM Gary Custom Z vented fenders. Vararam ver 2

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07-19-2010, 12:00 AM	#20
Berean Drives: Truck Join Date: Apr 2010 Location: Home Posts: 2,439	I have 20x8.5 +35 and 20x10 +40. What are the max tire sizes I can run on those?

07-20-2010, 07:40 AM	#25
SGOS252382 Drives: 2010 Camaro 2SS/RS Join Date: Mar 2008 Location: S.W. Florida Posts: 6,294	Based on these recommendations (Camaro5), 305s require a wheel that's 1'' wider than stock. Recommended 20" tires for 2010 Camaro 245/45-20 = 28.7" tall, 8.0-8.5 wheel 255/45-20 = 29.0" tall, 8.0-8.5 wheel 265/40-20 = 28.4" tall, 8.5-9.0 wheel 275/40-20 = 28.7" tall, 9.0-9.5 wheel 285/40-20 = 28.9" tall, 9.0-10.0 wheel 295/35-20 = 28.1" tall, 9.5-10.5 wheel 305/35-20 = 28.4" tall, 10.0-10.5 wheel 315/35-20 = 28.7" tall, 10.5-11.0 wheel

07-20-2010, 11:57 AM	#26
Berean Drives: Truck Join Date: Apr 2010 Location: Home Posts: 2,439	Thanks for posting the wheel heights. Makes me think I should run 265 front and 285 back just to get a little extra height in the rear wheel well.