David.Shaw

I have seen some autocross people that are running c4 and c5 wheels on their c3. has anyone done this? I am told you need a special spacer and that C4 ZR1 17x9.5 wheels work? but would like some feedback before I jump off the deep end... oh no fender flares here....
Is there a thread already out there I should look at??

L-46man

URP! UGLY! IMHO if you use wheel spacers you lose! Wheel spacers are for idiots who bought the wheels FIRST and then try to make them fit. Twice the chance for a loose wheel and breaking studs. Twice the movable contact area twice the dissimilar metals. Measure the correct offset and get the CORRECT WHEEL.

Potentially another C-3 bites the dust. You wont get 9.5 " wide wheels to fit a C-3 WITHOUT Mods. They are designed for 8" wheels, upped from 7" wheels.

Wheel spacers $50, new fender $4000.

bluegtp

I ran c5z06 wheels for years on the street with zero problems. 18x9.5 (3" adapters) on the front and 18x10.5 (2.5" adapters) on the rear. I did choose to replace all my wheel studs with arp (some guys go a larger diameter stud). I did have to relocate the ebrake cable bracket to the top of the t arms and shorten the monoleaf (fiberglass) to clear the 10.5" wheels.

That said, everyone has their opinion on wheel adapters and of course whether or not a certain wheel looks good on a car. Jeep and truck guys use adapters too. Try to buy hubcentric type (my rears weren't, no issues. I just made sure to torque opposite sides studs and make multiple passes). Adapters open up a lot more available wheel options. I'm sure there are some threads already on this.

Hope this helps.

Ryan

bluegtp

And here's some pics.

cheapta

Fabulous car, Ryan!

69427

Not trying to be rude here, but that's nonsense. I, and a lot of guys, have run 9.5" wheels on our C3s (see my avatar), and the adapters (they're not spacers!) are perfectly safe, even on track days. It's difficult to find 15" performance tires anymore, so we who track our cars are often stuck with using readily available and affordable C4 and C5 wheels. I personally have never heard of anyone having an issue with their wheel adapters. YMMV though.

bluegtp

Thanks!

Countryside Cafe

Looks like your efforts paid off. Your car looks really cool!

davidchristopher

@bluegtp Ryan; how much did you have to shorten the springs? are we talking 1/2 inch? or more?