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Old 11-06-2014, 12:12 PM   #1
matthew9440

 
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Can I get a wider tire if I switch my wheel size slightly?

I currently have 20X9's in the front and 20X10's in the rear and I run those with stock Pirellis. I am going to have to get some new tires soon and my current tires have been stretched over the rims. It isn't atrocious by any means, but I feel like I could take advantage of having to get some new tires and purchase something a little wider. Anybody know which sizes I can go to?
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Old 11-06-2014, 12:24 PM   #2
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I would follow this:

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
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Old 11-06-2014, 12:26 PM   #3
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whats the offset on the rims, we can tell what will look best
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Old 11-06-2014, 12:49 PM   #4
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They are Factory Reproductions Style 41 Chrome Replica ZL1 wheels. I think they say 20X9 +27 20X10 +35
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Old 11-06-2014, 03:29 PM   #5
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I cant find a nice set of tires in both sizes. Whats is everybody else running?
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Old 11-06-2014, 05:04 PM   #6
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I ran 295's on the stock 9" rear rim when I ran the stocks.
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Old 11-06-2014, 05:17 PM   #7
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If I were you, I'd run ZL1 sizes--

285/35/20 front
305/35/20 rear
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Old 11-06-2014, 07:56 PM   #8
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Can i run a 285/35/20 on the 20x9 rim?
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Old 11-06-2014, 08:35 PM   #9
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I have the exact same front 9 inch rim as you and I'm running a 275 on it and it looks and handles great (slightly pokes out the front fenders). For the rear if I were you I would go with a 295 or 305 so it's flush with the fender. Probably a 295. I would stick stick with 40's unless your lowered then 35's would look good. There is just way to much wheel gpa with 35 spec tires on a non lowered car.
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Old 11-07-2014, 12:50 AM   #10
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Quote:
Originally Posted by matthew9440 View Post
Can i run a 285/35/20 on the 20x9 rim?
Yes. I'm running 285/35 in the front.
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Old 11-07-2014, 10:02 AM   #11
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These are 295 Continental DWS on 9" rear stock wheels.

[IMG][/IMG]

[IMG][/IMG]
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Old 11-08-2014, 12:15 PM   #12
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Could I get Michelin Pilot Super Sports? What sizes could I get in my rim size?
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Old 11-08-2014, 01:09 PM   #13
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The Michelin Pilot Super Sport runs considerably wider than most tires, so the most I would personally do is a 255/40 on the front, and a 285/35 on the rear.
Keep in mind, that is "too wide" by what Michelin recommends, but it does fit.

I temporarily ran this exact combination on my stock wheels before switching to wider wheels.
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Old 11-09-2014, 10:21 AM   #14
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Quote:
Originally Posted by matthew9440 View Post
They are Factory Reproductions Style 41 Chrome Replica ZL1 wheels. I think they say 20X9 +27 20X10 +35
255/40 on 9's up front, 285/35 on 10's out back.

Both setups are within the accepted range of wheel widths, the fronts on wheels half an inch wider than "measuring" and the rears on "measuring width" wheels. Unless you need a soft ride (unlikely given the wheel widths) or you're chasing 1LEs at HPDE track days, this is a good place to be.


Even your current 245/45's on 9" and 275/40's on 10" are both within the acceptable range of wheel widths. The wider tires on these same rims may give you a little more ultimate grip . . . and may give away a tiny bit of the steering response that I suspect you've become accustomed to.


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