Fitting C8 Corvette Wheels on F80 M3 - Possible? Safe?

[GritsNGravy]

I have a new unused set of ceramic coated ADV5.0 Wheels that have been sitting in my basement, unfortunately, they are for a c8 corvette and I now have a 2018 F80 M3. Would hate to have these be a waste, and I only really want to use them for my winter tire setup and stick with my 666's for summer. Right now my winters are some aftermarket wheels scuffed to shi# I had on my prior E93.

BTW, I have 35K miles on my car and drive maybe 120-150 miles a week, tops.

Retailer has been less than helpful, but said I may be able to get a machinist to open up the center hub bore a bit from 67 to the needed 72.56, and after researching looks like I may also have option to just add a hub centric ring... (if that is feasible/easiest, anyone have experience with metal/aluminum vs. plastic - live in CT/East Coast and for winter. Don't want to worry about driving, but rust is another issue...)

Anyone have experience with this? Recommendations, as well as anything to be worried about?

Current Car/Tire/setup: Winter Tires: Nokian 255 / 35R19 - 96T Extra Load
Spacers all around car: 10mm
Springs/Drop: Eibach v2

Wheels looking to make work on 2018 F80 M3: ADV5.0 - Bolt Pattern: 5 x 120 - Wheel Size: 19 x 9.0 - ET: 38 (Center Bore size says 67.0)

Thanks everyone!

//S

[andrewmr]

The bolt pattern on the M3 is 5x120, the bolt pattern on the Corvette is 5x120.65.

I'm not a wheel expert, but I bet the .65 makes a difference.


EDIT.... it appears the newer C8 wheels are 5x120.....




The center bore can be made bigger, or smaller with an adaptor.

Can't tell what your offset is on the ADV wheels. I'm guessing 50mm from their web site. And then you'd have to confirm clearance for the caliper....

I'd suggest selling the wheels on a Corvette related site and then buying a set of wheels that would "fit" the M3.


Good luck.

[Tommix]

The bolt pattern difference is 0.65 mm which is 0.026". This is a very small difference and thats why I don't see this as a problem because the hub of the rim is centered by the adapter ring, not the wheel bolts. There is always a small gap between the wheel bolt hole and the wheel bolt. I wouldn't do that myself, but I know that these rims have been used in a cross between these two cars.

[b_w.]

sounds like an expensive experiment that will cost more in the long run than just getting the right ones.

[M3SQRD]

You’d need a centering ring machined with extremely tight tolerances. The biggest concern is how the conical seated lug bolt lines up with the partial conical counterbore on the wheel. If the conical bolt and counterbored hole contact on one side before the other side contacts then you’ll be putting a significant bending moment into the lug bolt as you torque it down. Also, 9” wide square setup is the wrong size for the F8x. Ideally, you want 10” square or larger to fit 285-295 square tire setups. Furthermore, you’ll need spacers on the front and rear just to get back to stock offsets. What size tire would you run?

Like others have suggested, sell these and get new front & rear wheels with the correct widths and offsets. Wheels are one thing on a car you don’t want to mess with. Getting new wheel is definitely the safer option.

[1heckinboi]

Back when I had my C6 a lot of guys in the drift community would just throw on regular 5x120 just fine even though technically there is that difference of .65, nobody ever had an issue with them even with the abuse those wheels had gotten. Reason why we did that was because there was not a whole lot of aftermarket wheel options that made that exact pattern.

Back to topic though, you could easily get a centric ring to fill in the difference and it would ride safe. Plastic works fine but if you do use a metal make sure to get some anti seize on, I've had issues with aluminum getting some corrosion on them and they tend to get stuck to where you'll need to knock them loose to pull off

[M3SQRD]

Originally Posted by 1heckinboi

Back when I had my C6 a lot of guys in the drift community would just throw on regular 5x120 just fine even though technically there is that difference of .65, nobody ever had an issue with them even with the abuse those wheels had gotten. Reason why we did that was because there was not a whole lot of aftermarket wheel options that made that exact pattern.

Back to topic though, you could easily get a centric ring to fill in the difference and it would ride safe. Plastic works fine but if you do use a metal make sure to get some anti seize on, I've had issues with aluminum getting some corrosion on them and they tend to get stuck to where you'll need to knock them loose to pull off

I guess it really comes down to how small the diameter of thru holes are and whether you can clearly see the full hub threaded hole. It’s 26 mil on the diameter so 13 mil radial offset per mounting holes. 13 mil could be the hole tolerance for some of the cheaper wheels on the market. However, I’d personally run wheels with the correct BC, hub diameter, widths and offsets. A square 9” wheel set is not correct for the F8x. If its a multi-piece wheel then get new inner and outer barrels and rebuild them better offsets and widths.

[1heckinboi]

Originally Posted by M3SQRD

I guess it really comes down to how small the diameter of thru holes are and whether you can clearly see the full hub threaded hole. It’s 26 mil on the diameter so 13 mil radial offset per mounting holes. 13 mil could be the hole tolerance for some of the cheaper wheels on the market. However, I’d personally run wheels with the correct BC, hub diameter, widths and offsets. A square 9” wheel set is not correct for the F8x. If its a multi-piece wheel then get new inner and outer barrels and rebuild them better offsets and widths.

I'm with you on using the correct stuff, for that purpose on the C6 it was just what worked and what could be done/available.

There was a "safe" way to use those wheels without totally worrying about the studs not lining up with the wheel holes and it was using wobble lug nuts (aka PCD Variation lug nuts)

[skidjs]

All will be fine as soon as you torque the lugs.
Have run BMW pattern wheels on f-bodys. No issues.