Change Tune or something when you get new wheels?
Thread Starter
The Paranoid One
Joined: Apr 2006
Posts: 5,320
From: Texas
Change Tune or something when you get new wheels?
I got some new wheels a while back ago.
I have a 06GT.
Stock wheels were 18x8 or 18x9 cant remember.
My new Roush wheels are 18x10's and I had to get bigger tires.
Is there anything I need to do to make sure the car is running or handling right now that i switched?
I don't have a tuner.... do I need to take it to the shop or am I ok?
I have a 06GT.
Stock wheels were 18x8 or 18x9 cant remember.
My new Roush wheels are 18x10's and I had to get bigger tires.
Is there anything I need to do to make sure the car is running or handling right now that i switched?
I don't have a tuner.... do I need to take it to the shop or am I ok?
4th Gear Member
Joined: Jan 2007
Posts: 1,567
From: Palm Beach to South Carolina
RE: Change Tune or something when you get new wheels?
As long as the diameter of the TIRE is the same, you are OK.
Stock 235/50/18 - 27.3" diameter
New 255/45/18 - 27" diameter - OK
New 285/40/18 - 27" diameter - OK
The wheels themselves have nothing to do with with the speedometer.
Stock 235/50/18 - 27.3" diameter
New 255/45/18 - 27" diameter - OK
New 285/40/18 - 27" diameter - OK
The wheels themselves have nothing to do with with the speedometer.
6th Gear Member
Joined: Jun 2007
Posts: 16,182
From: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)
RE: Change Tune or something when you get new wheels?
I had to get a new tune after washing the dead bugs off the front of the car. Reduced the coefficient of friction... J/K!!!
3rd Gear Member
Joined: May 2006
Posts: 700
From:
RE: Change Tune or something when you get new wheels?
There are differences in tires even when they have the same diameter.
Don't worry about the wheels. They don't matter. You're concerned about your tires (overall diameter).
Look up the revs per mile on tirerack.com or on the manufacturer's website for your last set of tires and the current set. That will tell you the error in your speedometer.
Here's a good chart. Notice how tires of the same diameter have a different value for revolutions per mile.
http://www.tirerack.com/tires/Spec.j...irePageLocQty=
Don't worry about the wheels. They don't matter. You're concerned about your tires (overall diameter).
Look up the revs per mile on tirerack.com or on the manufacturer's website for your last set of tires and the current set. That will tell you the error in your speedometer.
Here's a good chart. Notice how tires of the same diameter have a different value for revolutions per mile.
http://www.tirerack.com/tires/Spec.j...irePageLocQty=
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