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If you're referring to machining the wheel, yeah that's what works best
when you stated you were searching for 14mm wobble lug nuts I was confused since the C5 has 12mm, so thought maybe you were planning to swap hubs with larger lug studs.
when you stated you were searching for 14mm wobble lug nuts I was confused since the C5 has 12mm, so thought maybe you were planning to swap hubs with larger lug studs.
The C8 wheels are manufactured with a larger diameter 14mm bolt holes and a larger conical taper seat so even if you find 12mm PCD nuts; the nuts will only contact the top or outside edge of the taper fit wobble nuts. Not a safe long term setup.
Problem here is matching a C5 M12 x 1.5 stud with the larger C8 M14 size conical taper seat. Even a M12 PCD nut won't correctly match the wheel
The C8 wheels are manufactured with a larger diameter 14mm bolt holes and a larger conical taper seat so even if you find 12mm PCD nuts; the nuts will only contact the top or outside edge of the taper fit wobble nuts. Not a safe long term setup.
Problem here is matching a C5 M12 x 1.5 stud with the larger C8 M14 size conical taper seat. Even a M12 PCD nut won't correctly match the wheel
Agreed and was the concern I was trying to get some answers for in my earlier posts on this thread. I’m wondering if those that have put these wheels on their C5 are just hoping for the best that the 12mm lug nuts will keep the wheels secure?
Also, as to the possible issue of the lug holes being too large for the 12mm lug nuts, seems they would be a great candidate for using the ET style lug nuts that have the short shank on the end that sticks through the wheel to grab more threads with wheel spacers, which you would need anyway to space the C8 wheels correctly in the wheel openings.
Also, as to the possible issue of the lug holes being too large for the 12mm lug nuts, seems they would be a great candidate for using the ET style lug nuts that have the short shank on the end that sticks through the wheel to grab more threads with wheel spacers, which you would need anyway to space the C8 wheels correctly in the wheel openings.
I have a Z06. Not sure if a spacer on the rear is needed. The factory C5 Z06 wheel is 10.5” wide with a +58 offset. The C8 wheel is 11” wide with a +64 offset. May fit the wheel opening just fine sans spacer?
I have a Z06. Not sure if a spacer on the rear is needed. The factory C5 Z06 wheel is 10.5” wide with a +58 offset. The C8 wheel is 11” wide with a +64 offset. May fit the wheel opening just fine sans spacer?
No, they would sit much further in on an 11" wide wheel with 6mm more offset like the 64mm of the C8 rear wheel, I've run them on the offset comparison calculator.
They would actually sit far enough in for the tires to rub on the inner wheelwell.
No, they would sit much further in on an 11" wide wheel with 6mm more offset like the 64mm of the C8 rear wheel, I've run them on the offset comparison calculator.
They would actually sit far enough in for the tires to rub on the inner wheelwell.
Ah, OK. Thanks for that info. So like a 1/4” spacer then.
No, they would sit much further in on an 11" wide wheel with 6mm more offset like the 64mm of the C8 rear wheel, I've run them on the offset comparison calculator.
They would actually sit far enough in for the tires to rub on the inner wheelwell.
My BC Forged 19x11's have a +65 offset and my 325/30/19's don't rub anywhere and are a flush-fit. Wheel backspacing is 8.60". Since max backspace on a C5 is approximately 8.75", I should be able to fit a 19x11 with a +68 offset, without issue.
Lots of people are running C6/C7 12" widebody rears with +59 offset and 325 rubber without inside interference. That offset on that width equals 8.82" backspacing.
Also, as to the possible issue of the lug holes being too large for the 12mm lug nuts, seems they would be a great candidate for using the ET style lug nuts that have the short shank on the end that sticks through the wheel to grab more threads with wheel spacers, which you would need anyway to space the C8 wheels correctly in the wheel openings.
Tolerance fit collar lug wheels won't help here at all. It will still sit too deep in the rim and not create a full, proper seat against the taper of the rim.
Wheel spacers also won't help the lug nuts fit any better Albeit; Spacers can be used if you like outside the fender look but still a poor fit
Here is a Z06 that I found for sale that has C8 wheels on it, and must have spacers as the tires are right out at the edge of the fender openings.
It's not hard to tell using spacers. The wheel sticks out so far you can't lower the car. Even a smaller width tire will contact the body if you go with a spacer.
I remember back in the day guys jacking their cars suspension up just to run a big tire
