[#8ZL1Man]

Hoping for help. Searched lots of posts but too many are confusing because they quickly get hi-jacked with Non-Square comments.

I want to run DD All-Season tires, with a bolt-on square set for my ZL1. Could care less about track considerations or rear hook-up. I think I could get OEM wheels in ET20 or MRRs in ET23.

I just want to look good in my convertible cruising, for 3 seasons, and get 40K+ out of a set of 285 tires.

Has anyone run either of these?

[RobZL1]

I believe the fronts will also work on the rear. You'll stick out about 3/8" further toward the fender, and gain a ton of clearance on the inside (1-3/8"), but I think it should work. I'm sure someone has tried it and can confirm, though. It should work strictly by the offset calcs though. Meaning, 20x10 et20 on all corners.

[crosive]

Originally Posted by #8ZL1Man

Hoping for help. Searched lots of posts but too many are confusing because they quickly get hi-jacked with Non-Square comments.

I want to run DD All-Season tires, with a bolt-on square set for my ZL1. Could care less about track considerations or rear hook-up. I think I could get OEM wheels in ET20 or MRRs in ET23.

I just want to look good in my convertible cruising, for 3 seasons, and get 40K+ out of a set of 285 tires.

Has anyone run either of these?

https://www.wheel-size.com/calc/

you can put in whatever you are planning into the calculator and it will give you a pretty good estimate of what you'll end up with (relative to what you entered for your stock fitment). i.e 3/8" closer to suspension components, or 3/4" more poke from fender.

it's helped me a lot on various vehicles.

[#8ZL1Man]

This prior post helped:

Originally Posted by mariojas

Update on my setup - 19x10 ET22 SM-10 rims are perfect for a front of ZL1 - sits flush with the fender like stock. But rears stick out a little, somewhere 3/8 - 1/2in, so I am not fully happy. ET35 probably would be better. Edit: after spending with them a day - I like it might look better than stock...

[#8ZL1Man]

Anybody know if 295/30/20 fits on 20x10 square set up (ET23)?

[Vigilante375]

Originally Posted by #8ZL1Man

Anybody know if 295/30/20 fits on 20x10 square set up (ET23)?

I know you said it's not for a track setup but read this. There are square setup for different sized rims on different sized tires.

https://support.apexraceparts.com/hc...-Fitment-Guide

[#8ZL1Man]

Originally Posted by Vigilante375

I know you said it's not for a track setup but read this. There are square setup for different sized rims on different sized tires.

https://support.apexraceparts.com/hc...-Fitment-Guide

Thanks. I've seen that. They're pushing 19" rims for lighter weight and performance on the track, and 11" wide rims for wide tires.

My 2023 ZL1 Convertible is a 'forever' car. My goal is 20" diameter (lots of options), and 10" wide rims (285 or 295 tires for better MPG and many A/S options).

I've had two Vipers, and I got rid of the last one, in part, because collectors will have a hard time finding 345/19 rear tires in a few years (as tire mfgs. focus more on electric cars, and those don't feature wide rubber due to their priority for lower rolling resistance). ...So I believe we're all going to be facing more limited rubber options for collector performance cars in the future.

[#8ZL1Man]

...Well now we know for sure that the party ends in 10 months.