10-04-2010, 02:17 PM
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Senior Club Cobra Member
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Join Date: Jul 2006
Location: McKinney,
TX
Cobra Make, Engine: ERA GT #2077, 331 SBF, Webers, Gurney Eagle heads
Posts: 1,275
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Not Ranked
Quote:
Originally Posted by strictlypersonl
I pretty much gave up giving wheel makers the actual offsets (which is the most accurate way to define the wheel). Most of them only want the backspacing. You can figure the offset by adding about .8" (an average edge width x 2) to the nominal width, then dividing by 2. The difference between that number and the backspacing is the offset.
Just to make things even more interesting, not all companies define offset in the same direction, so it's best to send them a well-defined drawing.
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Thanks, Bob. I can work with that. Just want to know all that I can know about it.
Sam
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