speedo recalibration with 18" rims???
12-19-2006, 10:33 PM
#1
Teching In
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Location: Appleton, WI
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speedo recalibration with 18" rims??? im thinking of getting some 18" rims to replace my stock 16" rims on my z28, will the speedometer get messed up? what about with 17"?
12-19-2006, 10:57 PM
#2
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Location: Lincoln NE
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there is a link somewhere on ls1 tech that calculates the mph difference. 17s should be fine with no adjustment. 18's would be off more, it depends on the sidewall height i believe. I have 18's on my car and I didnt adjust anyhting. The speedo is off 1 or 2 mph max on mine. I think this is the link.
http://www.discounttiredirect.com/d...nfoTireMath.jsp
http://www.discounttiredirect.com/d...nfoTireMath.jsp
