What is the lug pattern and offset for 93-02 fbods?

5x???
???

 

5 studs on a 4.75" bolt circle. In metric that's a 120.65mm bolt circle.

Offset varies with width of the wheel.

Stock 16x8: 55mm

Stock 17x9: 55mm

Aftermarket 17x9.5: 45 to 56mm (there are some Enkies in 38mm, you have to decide if you like the wheels out that far)

Aftermarket 17x11: 50mm (there is a 36-38mm offset for ZR1 Corvettes that some people use.... again, stick out too far for my taste).

For 15" slicks, 15x8 with 5.5" backspace; 15x10 with 7.5" backspace.

 

Thanks.

Would 17" 5x114.3 wheels fit?

 

no they wont
they have to be 5x120.65 which is 4.75"

 

What about the BMW 120mm bolt pattern? Will those work or cause vibration?

 

So what does a smaller offset mean? And is the offset the same as the backspacing?

 

"So what does a smaller offset mean? "

Probably less positive, i.e. +38 offset is less than +55. A larger positive offset means the wheel is tucked further into the wheel well. A smaller positive offset will move the wheel outward. So, for example, on the factory 16*8 rims, if the offset was changed from +55 to +38, the wheel would look more flush with the fender instead of looking set in slightly.


"And is the offset the same as the backspacing?"

Practically, yes, but it is a different measurement. Offset is the measurement from the centerline of the rim to the mounting face of the rim, while backspace is the measurement from the inner lip of the rim to the mounting face of the rim.

"What about the BMW 120mm bolt pattern? Will those work or cause vibration?"

If you do a search for BMW rims on the forum, there is a lot of good discussion about this. The will fit, but technically they are off by .65mm. In my book, with a father who is an aerospace engineer, while it's close, it ain't close enough. It will certainly put stress on the wheel studs that they may or may not be "over" engineered enough to take.

 

Alright, thanks for the help.

 

Well, .65mm / 5 lugs = .13mm per lug that they will be different...do you realize how small that is ???

Trust me, if I gave you two sets of the same model rims, one 5x120mm and the other 5x120.65mm bolt pattern, you would not know the difference when you bolted them on. See my post here: http://web.camaross.com/forums/showt...hreadid=134578 for more discussion on this topic.


-Shawn