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Z51 - Trying to figure out what wheels and tires for a drag set on the rear. I ordered a set of rears but they stick out a little (3/4 inch or so) as they sent me 56 offset, but I need 79 evidently.
Would keeping them cause wheel rubbing issues? I got 19x10 to allow a little more rubber out back- but with then sticking out I’m concerned it’ll squat too far and hit the fender. New to the C7. I don’t want to spend a fortune since I’ll just race it once in a while but just don’t want to tear up my street tires.
Last edited by Nite RNR; May 19, 2022 at 12:51 AM.
Reason: Typo
If they're stock width then you'll probably be fine without rubbing. I'm running C8 wheels, 20X11 with 64 offset, on my car using the stock width tires (285) and they only rub slightly hitting larger bumps.
If they're stock width then you'll probably be fine without rubbing. I'm running C8 wheels, 20X11 with 64 offset, on my car using the stock width tires (285) and they only rub slightly hitting larger bumps.
i do have the magnetic ride control. Would that compensate to keep the rear from dropping enough to hit the back in a launch, you think? Or is that out of its realm of ability? I would likely have it in one the the performance modes to stiffen up the suspension in a drag race.
Last edited by Nite RNR; May 20, 2022 at 04:41 AM.
Reason: Poorly worded
i do have the magnetic ride control. Would that compensate to keep the rear from dropping enough to hit the back in a launch, you think? Or is that out of its realm of ability? I would likely have it in one the the performance modes to stiffen up the suspension in a drag race.
I drove in Tour mostly and never had any issues taking off from a stoplight. It’s the larger bumps and dips that cause a significant shift that you’d have to watch out for. If you go to Sport or Track for launching then you’re fine. Only warning I’ve heard for those modes is that Track is really only for a race track and you can damage the car driving on the street due to the stiffer suspension. I’ve only ever used it on the highway though. Sport on the street is supposed to be fine and many members drive in that mode. Also need to mention my mag ride is the original tuning for 2014. I can’t speak for the new tune that’s out.
Are you just wanting a set for drag racing that you'll take off when not going to the track? If so, why not buy some Factory reproductions in 19x10 with the stock offset and put drag radials on them? Or guy the American Racing 19x10's they offer with 75mm offset. They are decently priced and give you the option to run a 19" drag radial which are cheaper and have more sizes available that would fit.
I would not run those wheels you have now. They will rub no matter what magnaride setting you are in. I have 20x11 -71mm offset Forgestarts and my 2915/30-20 Pilot Sport 4S rub in Sport mode when hitting larger bumps. I suspect they rubbed when I took the car to the drag strip on the 1-2 shift, too running in Sport mode.
Tall and wide wheels with wide tires are not good choices for straight line racing. Go with the smallest diameter wheel in about a 9 or 9.5 width and a tall sidewall tire. Run the highest air pressure that will stick the launch (probably 24 if you have no or minimal mods) and drop pressure 2 lbs at a time if you continue to spin. Don't be afraid to do a serious burnout after the waterbox.
Enjoy the challenge and be sure to have fun.
Are you just wanting a set for drag racing that you'll take off when not going to the track? If so, why not buy some Factory reproductions in 19x10 with the stock offset and put drag radials on them? Or guy the American Racing 19x10's they offer with 75mm offset. They are decently priced and give you the option to run a 19" drag radial which are cheaper and have more sizes available that would fit.
I would not run those wheels you have now. They will rub no matter what magnaride setting you are in. I have 20x11 -71mm offset Forgestarts and my 2915/30-20 Pilot Sport 4S rub in Sport mode when hitting larger bumps. I suspect they rubbed when I took the car to the drag strip on the 1-2 shift, too running in Sport mode.
Yes, just a set for racing. And I was thinking along the same lines and the set I ordered are factory reproductions that I got on tire rack. I got 19x10 but the issue is they sent a 56 offset but had it mislabeled as a direct fit for the Z51, which is the 79. When I called tire rack the woman said I could return them but the shipping cost is my problem because “the site says they fit the z51, so they do”. Evidently thinking I just dislike the fitment but there are no issues- so refusing to cover shipping back even though they clearly aren’t right. The shipping is high- like half the cost of the wheels.
So, that is how I ended up in this position and was trying to see if they could maybe still work at the track only. I was going to run a 19 Drag radial in a 295 or 305/30 which would be about a half in less in diameter. I appreciate you guys helping out on this!
Last edited by Nite RNR; May 21, 2022 at 09:27 AM.
Reason: Addition
That is disappointing that Tirerack would make that mistake and not make it right.
Shipping would be about $50 so I would not try to use those wheels if I were you. But, I sure would let Tirerack hear about it.
19x10 is a good size with the right offset.
agreed- so it looks like shipping will be 70, but it is the principle that is the part that bugs me. I am positive once I ship them they wouldn’t issue a refund, so I’ll instead try and get ahold of them again Monday and talk to someone higher up.
agreed- so it looks like shipping will be 70, but it is the principle that is the part that bugs me. I am positive once I ship them they wouldn’t issue a refund, so I’ll instead try and get ahold of them again Monday and talk to someone higher up.
I hope you get someone better on Monday. When I bought tires fron them a few months ago for my Z51, a tech called me to verify fitment before shipping them.
I hope you get someone better on Monday. When I bought tires fron them a few months ago for my Z51, a tech called me to verify fitment before shipping them.
She actually referred to that tech call, saying “if there would be a possible fitment issue, then it would show our tech guys called to verify”. And I responded saying that no one had called, and there is definitely a fitment issue. 🤦♂️
I also hope to get a little better help when I call back. I have never had trouble with Tirerack before- so this was a bit of a surprise.
That being said, I would happily take a used set if someone comes across any. I got the corvette wheel size/offset table and see several that would be direct fits- so I’ll look into grabbing a couple used or some drag wheels in the right offset
Z51 - Trying to figure out what wheels and tires for a drag set on the rear. I ordered a set of rears but they stick out a little (3/4 inch or so) as they sent me 56 offset, but I need 79 evidently.
Would keeping them cause wheel rubbing issues? I got 19x10 to allow a little more rubber out back- but with then sticking out I’m concerned it’ll squat too far and hit the fender. New to the C7. I don’t want to spend a fortune since I’ll just race it once in a while but just don’t want to tear up my street tires.
Looks like they sent you the fitment for widebody C6/7. You should get it replaced in my opinion.
Rear wheels/tires
