'99 max Wheel Off Set
#1
Posted 04-11-2011 10:35 AM
Chris
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#2
Posted 04-11-2011 01:20 PM
Dave
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#3
Posted 04-11-2011 05:17 PM
So by that I'm taking it that 15x7 w/25mm offset wheels are fine as long as I don't use spacers as well.There is no maximum wheel offset. The spec is based on track width. The track width spec was determined using a 25 mm wheel.
Dave
Chris
Happiness is a dry martini and a good woman ... or a bad woman.
- George Burns
#4
Posted 04-11-2011 05:38 PM
So by that I'm taking it that 15x7 w/25mm offset wheels are fine as long as I don't use spacers as well.
Correct.
J~
#5
Posted 05-12-2011 11:15 AM
Just want to make sure 100% before I place an order on some wheels.
#6
Posted 05-12-2011 12:07 PM
So +25mm on a 99+ is legal in SCCA SM???
Just want to make sure 100% before I place an order on some wheels.
Yes.
I don't blame you for wanting to be extra sure, but note that the answers above were provided by: a) the person who wrote the rule, and one of the biggest SM builders in the country, a current '99 driver (and moderator on this site..but, you might not have known that part).
To clarify for ChrisA: the correct limiting term for Wheel Offset is MINIMUM (not max). Offset is the distance from the centerline of the wheel to the inside lug-face of the wheel. So, a smaller offset means that the wheel lug is closer to the centerline. A larger offset means the lug-face is closer to the outside rim. Smaller offsets push the wheel away from the body farther. This increases the track.
So, a 30mm offset can be used with a 5mm spacer to create a effective 25mm offset.
-tch
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#7
Posted 05-12-2011 12:11 PM
#8
Posted 05-12-2011 12:34 PM
There is no maximum wheel offset. The spec is based on track width. The track width spec was determined using a 25 mm wheel.
Dave
Well, there "kinda" is:
The front track shall not exceed 1450 mm.
The rear track shall not exceed 1475 mm. Aftermarket wheel studs, lug nuts, and wheel spacers are permitted. If spacers are used they shall be no greater than 13mm and equal per axle.Which effectively means that 38mm is the largest offset that can be used...unless someone used something other than a 7" rim. But, that just makes my head hurt.
-tch
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#9
Posted 05-12-2011 12:41 PM
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