02-12-2017, 08:31 AM | #1 |
Drives: 2019 ZL1 Camaro Join Date: Oct 2016
Location: Motor City
Posts: 196
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Switching 2SS Tire Size To ZL1/1LE Tire Size
Hi,
Looking into switching stock SS wheels and tires to 1LE/ZL1 wheels and tires. I noticed other than the tire widths, there is a difference in tire diameters. Would this be an issue swapping the 1LE/ZL1 wheels and tires onto an regular SS? Besides the different diameters, the front to rear diameter ratios are also different. Would this cause problems with the speedometer and/or computer that handles traction control? 1LE/ZL1..... Front-285/30/20 Diameter 26.7...Rear-305/30/20 Diameter 27.2....Rears are taller by .5 SS....Front-245/40/20 Diameter 27.7...Rear-275/35/20 Diameter 27.6...Fronts are taller by .1 Thanks, Tyrolblue67 |
02-13-2017, 03:17 AM | #2 |
You can only YOLO once.
Drives: '16 2SS & '15 Subaru Forester Join Date: Jan 2016
Location: Albany, OR
Posts: 1,677
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Driver's side rear wheel well has this little hump at the front part of it kind of in line with the axle...more or less. Behind that hump is a wire loom that you should probably move since almost all of us have worn that little hump to a hole when going to big rubber.
Not a great design move on GM's part...why make a different wheel well liner for SS vs. the one that the 1LE and ZL1 get? Doesn't make sense.
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2016 Camaro 2ss
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02-13-2017, 06:56 AM | #3 |
Dyno Show Queen LOL
Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014
Location: Houston
Posts: 4,345
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if you stick with 30 series you will not rub and be fine.
I have 305 35s 20 rear and 285 on front the F1 g2s, were to cheap to pass up. I just moved the harness over.. the 35s really feel the fender gap gives a semi lowered looked by filling up the space. I have noticed the same thing on my 5th gen and now my 6th gen going wider makes the car follow the grooves in the highway giving the effect that car is harder to keep straight because it wants to follow these grooves on warn pavement. The grooves are not noticeable to the eye except for when it rains you will see the 2 tire channels on the hwy from car traffic where the water pools. A buddy of mine has stock front size and went 295 on stock rims in the rear and noticed the same thing about the grooves grabbing the tire more..
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02-13-2017, 11:32 AM | #4 |
Drives: camaro Join Date: Sep 2016
Location: Korea
Posts: 191
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Go with 30 if you consider 20" rims then you can also get 315 tires.
35 is good for 19" rims in ma opinion. |
02-13-2017, 01:28 PM | #5 |
Drives: 2017 Chevrolet SS 1LE Join Date: Oct 2016
Location: Los Angeles, California
Posts: 9,270
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If you do the 285/30 and 305/30 you will be fine with no issues, if you do a 305/35 you will shine up the inner fender liner on the driver side.
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02-03-2021, 06:52 AM | #6 |
Drives: firebird Join Date: Jan 2010
Location: valdosta, georgia
Posts: 155
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Old post but will these make the tires stick out and then spit rocks on the car, if you use stock wheels?
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02-03-2021, 06:57 AM | #7 |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,602
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I wouldn't do it, especially in the front, 285 width is well beyond what a 8.5" wheel is designed to support.
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2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
02-17-2021, 10:31 PM | #8 |
Owning SSes for 50 Years
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tires
I have just gone through an expensive lesson with 285/30/20s on the front. It began throwing the service stabilitrack traction control and brake warning lights after driving about 3 minutes. I had 305/35/20s on the rear. Went back to 245/40/20s on the front and everything is back to normal. I am using 1LE wheels which seem to fit this size tire perfectly. Just sayin'.
I am using the Nitto 555r2s on the rear and Nitto G2s on the front. I initially went with 305/35/20 G2s on the rear, but now with the supercharger, I couldn't give it WOT at anything below 65 mph.
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Previous Performance Cars: 1966 Chevelle SS 4M, 2010 Corvette 6M 1968 Dodge Charger R/T Auto 2012 1SS 6M 1982 Corvette Auto 2010 1SS 6A 1984 Corvette Auto 2016 2SS 8A 1999 Camaro Auto 2017 HBM 1SS 1le 2002 C5 Corvette 6M 2018 2SS 2006 Corvette Auto 2023 Camaro LT1 |
02-17-2021, 10:45 PM | #9 | |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,602
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Quote:
I run 275/35/20 in the front and 315/30/20 in the rear on the same 1LE spec wheels, with zero issues. IMO the ideal rear tire size would actually be 325/30/20 (with 285/35/20 fronts) for this setup on a non-1LE SS, but Michelin doesn't make the PS4S in this size, hence my choice.
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2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
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02-18-2021, 01:55 PM | #10 |
Drives: 2021 Camaro LT1 Join Date: Oct 2020
Location: Minneapolis
Posts: 389
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This is really solid information to have, thanks for providing. I'm in the market for a new spring setup.
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