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Does anyone here know C5 wheel specifics?

Old Aug 1, 2006 | 02:49 PM
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Default Does anyone here know C5 wheel specifics?

We have a 4.75 inch bolt circle right?

What is the offset?

I'm trying to figure out other options in 16" besides CCW drag pack for the track. Thanks!
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Old Aug 1, 2006 | 02:58 PM
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Originally Posted by Cajundude
We have a 4.75 inch bolt circle right?

What is the offset?

I'm trying to figure out other options in 16" besides CCW drag pack for the track. Thanks!
That is the correct bolt circle. As far as offsets it depends on the wheels:

17x8.5" 58mm
17x9.5" 54mm (Z06)
18x9.5" 65mm
18x10.5" 58mm (Z06)
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Old Aug 1, 2006 | 03:00 PM
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Cool, thanks!
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Old Aug 1, 2006 | 03:28 PM
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And the options are????
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Old Aug 1, 2006 | 03:32 PM
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Working on it... I'm reading a deposition right now. I actually had to stop and work for a while. Go figure. I'll report back when I find out something.
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Old Aug 1, 2006 | 04:16 PM
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The "correct" offset is entirely dependant on the wheel's width.

The offset number of a stock 18x9.5 means absolutely nothing if you want a 18x12 (for example).

Post up the actual size, if the car is tubbed or not, and I or someone else can tell you the ideal offset.

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Old Aug 1, 2006 | 04:22 PM
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Thanks Tom! No tub, wheel needs to be 16" and as wide as I can get it. There seems to be several options with 16 x 12. Is that possible with no tub?
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Old Aug 1, 2006 | 04:37 PM
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Originally Posted by Cajundude
Thanks Tom! No tub, wheel needs to be 16" and as wide as I can get it. There seems to be several options with 16 x 12. Is that possible with no tub?
Yeah, but it's gonna hang out of the fender a little. If that's ok, a 62-64mm offset should work.

Last edited by Y2Kvert4me; Aug 1, 2006 at 04:41 PM.
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Old Aug 1, 2006 | 04:44 PM
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That's cool since they are for the track. I'll see what I can dig up with those measurements.
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