Wheel and Tire Question
Thread Starter
Drifting
Joined: May 2007
Posts: 1,491
Likes: 2
From: North Royaton Ohio
Wheel and Tire Question
Will changing the size of the wheel and tire from the stock slotted aluminums to an 18" wheel and say a 45 aspect ratio tire change the accuracy of the speedometer? I imagine it would.
Anybody?
Anybody?
Safety Car
Joined: Nov 2004
Posts: 4,359
Likes: 57
From: Mundelein Illinois
It is the overall height of rim and tire. If that changes from 27" speedo will change. If you go from 27" to 26" your speedo might change 1 or 2 mph. Easy way to check is if you have or no someone with a portable GPS navigation unit. Go to the screen that gives you mph and check that against your speedo.
Melting Slicks
Joined: Jun 2005
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From: Palatine, Peoples Republic of Illinois
St. Jude Donor '09-'10-'11-12-'13-'14-'15-'16-'17-‘18
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Burning Brakes
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From: San Diego California
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Burning Brakes
Joined: Mar 2007
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From: SAN FRANCISCO CA
well.... it's not that bad, as long as you recognize that fact when you're driving. my speedo is WAY off. i mean, like, 10mph. i didn't realize it until i was driving in tandem with my wife and i asked her how fast she was going (according to HER speedo, which i'm pretty sure was accurate). either way, i'm not much of a speed demon these days, especially in that car (already had my license suspended and a lovely time in traffic school). so for me it's no biggie.
Drifting
Joined: Apr 2007
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From: Springfield Illinois