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18s wheels all around

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Old Feb 4, 2012 | 08:08 AM
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Default 18s wheels all around
Just purchased a o3 and didn't realize it has 18" wheels all around. Why would a person change to the 18s?
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Old Feb 4, 2012 | 09:48 AM
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Probably because the previous owner was stupid and didn't know any better. Also possible is that he/she thought maybe someone else messed up and put on the wrong ones then it started having AH/TC system issues, so they dumped the car.
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Old Feb 4, 2012 | 10:21 AM
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Originally Posted by dgrant3830
Probably because the previous owner was stupid and didn't know any better. Also possible is that he/she thought maybe someone else messed up and put on the wrong ones then it started having AH/TC system issues, so they dumped the car.
I run 18's all the way around without TC issues. Who is stupid now?
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Old Feb 4, 2012 | 10:24 AM
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I guess the guy 2 up thinks 18s will hurt the performance.
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Old Feb 4, 2012 | 10:37 AM
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I am running 18 all around will no AH/TC issues. Typical combinations for these cars are 18/18, 19/19, and 19/20.
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Old Feb 4, 2012 | 10:42 AM
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Originally Posted by Ekul61
Just purchased a o3 and didn't realize it has 18" wheels all around. Why would a person change to the 18s?
I dumped the stock sizes and went 18/19's, definitely like the look much better and filled in the wheel wells much nicer!
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Old Feb 4, 2012 | 10:58 AM
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Originally Posted by dgrant3830
Probably because the previous owner was stupid and didn't know any better. Also possible is that he/she thought maybe someone else messed up and put on the wrong ones then it started having AH/TC system issues, so they dumped the car.
you can easily go 18/18 or 19/19 and have no issues as long as you get correct tires for the car

as mentioned you still have to watch the diameter of the tires

19/19 for me and not an issue at all with AH/TC
265 30 19
305 30 19


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Old Feb 4, 2012 | 11:00 AM
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Originally Posted by dgrant3830
Probably because the previous owner was stupid and didn't know any better. Also possible is that he/she thought maybe someone else messed up and put on the wrong ones then it started having AH/TC system issues, so they dumped the car.
Stupid huh, must be more than a few stupid people runnin 18's all around on this board.

Originally Posted by charger21
I run 18's all the way around without TC issues. Who is stupid now?
You must be one of the stupid ones!

I am running 18/19 combo but due to tire size options kinda wish I had done 18/18 combo. Wasn't really an issue before the SC system but is now. Could get a wider rear tire with a but more sidewall in a better tire for traction then I have found in 19's.

I may just be getting more stupid in my near future.

Darion

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Old Feb 4, 2012 | 11:17 AM
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Originally Posted by dgrant3830
Probably because the previous owner was stupid and didn't know any better. Also possible is that he/she thought maybe someone else messed up and put on the wrong ones then it started having AH/TC system issues, so they dumped the car.

I run 18 inch wheels on all 4 corners and never had an issue, I like the look of 18 all around.
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Old Feb 4, 2012 | 11:24 AM
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I also run 18s all around. It's not the diameter of the wheel that matters so much. It's the tire selection.
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Old Feb 4, 2012 | 11:30 AM
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those of you running 18 i just picked up some z06 18*10.5 and 18*9.5 what would you suggest for tire size i do have active handling thank you chris
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Old Feb 4, 2012 | 11:52 AM
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Originally Posted by charger21
I run 18's all the way around without TC issues. Who is stupid now?
Another one who posts w/o any knowledge. I have ran 18s all around for over 6 years with no problems at all. It has to do with tire diameter, not wheel diameter.
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Old Feb 4, 2012 | 11:54 AM
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Originally Posted by xceleratevette
those of you running 18 i just picked up some z06 18*10.5 and 18*9.5 what would you suggest for tire size i do have active handling thank you chris
Check the diameters of the tires you want-the front should be 1/2" less than the rear to keep the active handling happy.
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Old Feb 4, 2012 | 12:22 PM
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Damn Dennis! Great picture!
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Old Feb 4, 2012 | 12:23 PM
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And he's a tech contributor?
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Old Feb 4, 2012 | 12:30 PM
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Originally Posted by Edmond
And he's a tech contributor?
No kiddin!

Darion

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Old Feb 4, 2012 | 02:10 PM
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Ok guys, please allow me to retract my less than professional comment. Some people have managed to do this without issues. My comment was related to the AH/TC problems that can and do result with the tire diameters not proper in respect to the PCM/TC system programming. I apologize if I offended anyone.
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Old Feb 4, 2012 | 02:17 PM
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Originally Posted by dgrant3830
Ok guys, please allow me to retract my less than professional comment. Some people have managed to do this without issues. My comment was related to the AH/TC problems that can and do result with the tire diameters not proper in respect to the PCM/TC system programming. I apologize if I offended anyone.
You're good buddy!
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Old Feb 4, 2012 | 02:18 PM
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been running 18's all around for years....no issues....

am I wasn't offended
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Old Feb 4, 2012 | 04:40 PM
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Maybe the OP got lucky and bought a C5 with a big brake kit on the front which would require the use of an 18 wheel. That would be my first question
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