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Beyond Help
Originally Posted by
silverbull1t
my offsets are the same just because the wheels are wider doesnt mean the offset changes the offset is the back spacing on the wheel not the width of it
Offset changes with the change in width of wheel. Camaro rears are 20x9 +35, ZL1 are 20x11 +39. Backspacing is different as well due to the wider wheel.
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2011 Radiant Silver Metallic CTS-V Wagon - Corsa Axleback, AirAid Intake *Traded 7/7/16*
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Now it's a Party
The ones sold by Phasetek in this style are:
20x9: +27 offset.
20x10: +23 or +35 offset.
They also make a 20x11 +43 offset.
Silverbull1t: they look GREAT.
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What offset is Silverbull1t running in the rear?
These look great Silverbull1t!
2009 Pontiac G8 GT w/ Sport Package
Magnetic Gray Metallic
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VIP Member
Originally Posted by
Slizzo
Offset changes with the change in width of wheel. Camaro rears are 20x9 +35, ZL1 are 20x11 +39. Backspacing is different as well due to the wider wheel.
Slizzo I thought the Camaro 20x9 were +40?
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Beyond Help
Originally Posted by
donkeyGT
Slizzo I thought the Camaro 20x9 were +40?
You're right, I mixed it up with the front wheel (which is on a +35et offset).
2015 White Hot Chevy SS - Sunroof/Spare/Stick - BTR Stage 3 cam, headers, intake *Traded 11/11/2023*
2018 GMC Sierra Denali 1500 - 6.2L, Ultimate Pack *Turned in 4/13/2021*
2016 Jungle Green Metallic Chevy SS - Sunroof/Spare/Stick *Traded 2/1/18*
2011 Radiant Silver Metallic CTS-V Wagon - Corsa Axleback, AirAid Intake *Traded 7/7/16*
2008 Panther Black Metallic G8 GT * Sold 6/10/14*
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Junior Member
Originally Posted by
donkeyGT
Slizzo I thought the Camaro 20x9 were +40?
They are
2009 Maverick Silver G8 GT
ZL1 1LE[/COLOR] Wheels 285/30 255/35
V1 CTS-V BRakes Front and Rear
Kooks 1 3/4 Longtubes, Kooks 3inch Midpipe, Custom Borla XR-1 Axle Back Ebay 3.5inch Tips
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Junior Member
Originally Posted by
Slizzo
Offset changes with the change in width of wheel. Camaro rears are 20x9 +35, ZL1 are 20x11 +39. Backspacing is different as well due to the wider wheel.
Where do you get this info these aren't factory zl1 wheels. They are 20x10 with camaro ss offset +40 . That's self explanatory just look at the wheel. Why do you think when ppl get there camaro as wheels widened the offset stays the same
2009 Maverick Silver G8 GT
ZL1 1LE[/COLOR] Wheels 285/30 255/35
V1 CTS-V BRakes Front and Rear
Kooks 1 3/4 Longtubes, Kooks 3inch Midpipe, Custom Borla XR-1 Axle Back Ebay 3.5inch Tips
VCM OTR Intake
Custom Lunati Cam, DOD Delete, Cloyes Bullet Timing Set, TSP LS6 Ported Oil Pump
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VIP Member
Offset is measured from center line not "backspacing"
If you take a wheel and widen it. You must add the added width to the offset.
Ex: start with 19x10 +40 and widen it 25mm or an inch* you get 19x11+65.
*I know 25mm don't equal and inch. Its OK to round the .0157"
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Beyond Help
Originally Posted by
silverbull1t
Where do you get this info these aren't factory zl1 wheels. They are 20x10 with camaro ss offset +40 . That's self explanatory just look at the wheel. Why do you think when ppl get there camaro as wheels widened the offset stays the same
Saying that they aren't factory is good, but without knowing the true specs of the wheel we can't tell you if they'll work well or not. A 20x10 +40 will rub the fender unless you roll, and possibly pull the fender a little as well.
Offset does NOT stay the same (as mentioned below) when you widen the wheel. The offset changes with the added width as you're changing the centerline of the wheel (which is where offset measurement comes from: it's the distance of the mounting pad to the center of the wheel.)
2015 White Hot Chevy SS - Sunroof/Spare/Stick - BTR Stage 3 cam, headers, intake *Traded 11/11/2023*
2018 GMC Sierra Denali 1500 - 6.2L, Ultimate Pack *Turned in 4/13/2021*
2016 Jungle Green Metallic Chevy SS - Sunroof/Spare/Stick *Traded 2/1/18*
2011 Radiant Silver Metallic CTS-V Wagon - Corsa Axleback, AirAid Intake *Traded 7/7/16*
2008 Panther Black Metallic G8 GT * Sold 6/10/14*
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Why would he need to know if they work or not?
He put them on his car. Unless I'm missing something.
Last edited by BuildItYourSelf; 03-03-2014 at 08:33 AM.
2008 GT-M. PBM, #885
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