Speedo error corrected by changing to 235's on STi??
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Joined: Oct 2003
Posts: 65
From: CT
Car Info: 2004 Subaru WRX STi World Rally Blue with Silver BBS wheels WICKED!!
Speedo error corrected by changing to 235's on STi??
Sounds like our Sti speedos read 1-3mph low (~5%). Won't going to a larger OD tire correct this? I wouldn't do it for the speedo error correction, but it seems like a great excuse for some extra rubber when replacement comes around and the fringe benefit is a more accurate speedo, not a less accurate one!
Thread Starter
Registered User
Joined: Oct 2003
Posts: 65
From: CT
Car Info: 2004 Subaru WRX STi World Rally Blue with Silver BBS wheels WICKED!!
Stated that incorrectly yesterday. Our speedos read high. Speedo reads 80 when we're doing ~78 for example. Larger tire would correct this right?
Registered User
Joined: Mar 2003
Posts: 681
From: Warsaw, Indiana
Car Info: 02 WRX Wagon White
A larger diameter tire will indeed correct it. Is it smart? Anyone here using the 235/45s on there? Anyway, a larger diameter tire will put fewer miles on your car over a given distance and cause the speedometer to read lower than a smaller diameter tire at a given speed.
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Apr 2, 2005 12:27 PM