| be tricky, especially when one tries to predict if a wheel will fit as wheel width changes. It's probably best to start with offset ranges that are known to fit the Z32 for various wheel widths as in: front:
-- 7.5" width -> +16 - +57
-- 8.0" width -> +23 - +50
-- 8.5" width -> +29 - +44
-- 9.0" width -> +35 - +38
-- 9.5" width -> not generally possible - rear:
-- 17x8.5 -> +22 - +55
-- 17x9.0 -> +28 - +48
-- 17x9.5 -> +34 - +42
-- 17x10.0 -> not generally possible, though +41 has been done
-- 18x8.5 -> +22 - +64
-- 18x9.0 -> +28 - +57
-- 18x9.5 -> +34 - +51
-- 18x10.0 -> +39 - +45 These are general guidelines and members report satisfactory fitment outside these parameters. They are from the summary in this post: [ [ http://www.twinturbo.net/net/viewmsg.aspx?forum=technical&msg_id=935775 ] ] With regard to my front wheel--9" +38--you can see that it falls in the range of offsets for that width wheel so rubbing is not a problem. To understand how the position of a wheel shifts within the fender as offset varies check out the following diagram: 
As positive offset increases the wheel moves further inside the fender. Conversely, as positive offset decreases the wheel is pushed further toward the outside of the fender. I hope that helps. Wheel offset drives me nuts too.
 Chance favors the informed |
21:29:24 08/27/10
