Need help on wheel offsets
12-06-2007, 11:40 PM
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Need help on wheel offsets
I know this has come up before and there are lots of post on the subject but... I need to know from the gurus who have done the offset on wheels more than I. I have found a set of 18x8 48mm offset front wheel and 18x10 40mm offset for the rear. Will these wheels work on my '83 928? Thanks in advance for the help...Rob
12-06-2007, 11:53 PM
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Anything less than 50mm ET on the front is usually not very good. Ideal for the front is 55mm.
For the rear it depends on how big a tire you plan on going with. The 83 does not have a rolled lip. My GT does so you probably have about 10mm less room toward the outside. If you go with a 275 tire it'll probably fit fine. Anything larger and you'll probably have to roll the fender.
Try my wheel calculator, but for your 83, change the "Tire Out" in cell L:34 to about 190.
For the rear it depends on how big a tire you plan on going with. The 83 does not have a rolled lip. My GT does so you probably have about 10mm less room toward the outside. If you go with a 275 tire it'll probably fit fine. Anything larger and you'll probably have to roll the fender.
Try my wheel calculator, but for your 83, change the "Tire Out" in cell L:34 to about 190.