[JohnnyMac]

Hey everyone, I have a 2023 Camaro lt1 and was curious as to what tire and wheel setup I should run. My goal is to get better traction off the line and a wider stance without creating a “drag” setup. My only concern is impacting the handling / cornering of the car in a negative way which I absolutely don’t want to do. I was looking to potentially get 305’s in the rear for traction and the stance but was unsure if that’s big enough to negatively impact handling. If anyone has any recommendations as to wheel and tire set ups let me know, as I’m not too knowledgeable on set ups (clearly). Thanks guys!

[arpad_m]

JohnnyMac, there are tens if not more threads about tires here, check out the Tires / Wheels subforum

My recommendation, as always, is to switch to OEM SS 1LE wheels and a set of ultra high performance summer street tires such as the Michelin Pilot Sport 4S or the Continental ExtremeContact Sport 02.

This is an expensive proposition (although the Contis are a bit cheaper these days), however, not only is it not a downgrade in handling and traction, but it's actually a tangible, I'm tempted to say massive, improvement in both, especially compared to your base setup with the skinny Goodyear runflats that are junk. The real tradeoff is that you will want to down your car in the Jersey winter, which I used to do every year while I lived there, from December to March, sometimes April, but then I didn't want to destroy my forever Camaro with the crazy amount of salt on the roads anyway.

WIth such a combo, you will 1) be able to launch the car (provided you remain at stock power) and have great dry traction, 2) drive carefree in the rain no matter how intense, 3) have excellent cornering abilities, at least up to 1.1-1.2 g even on the street, 4) have nice and quiet tires with very low road noise, 5) have the best performace overall yet still be able to drive in 36-38 degree weather, and 5) have a killer looking wheel/tire combo, those SS 1LE are the most amazing looking 6th gen wheels ever designed (subjectively speaking).

If you go this route, my setup is 1LE wheels and 315/30/20 tires in the rear / 275/35/20 in the front, Michelin PS4S. Sizes are important, you can't deviate from your existing front:rear height ratios by more than ~3% without a custom tune, or your ABS and StabiliTrak systems can go haywire.

[FlukeSS]

Also refer to this website it gives you the stock tire sizes/widths along with wheels.

Everything up to an SS1LE should be compatible, however a ZL1 1LE (often referred to as ZLE) has different wheel sizes/widths so be careful not to confuse which 1LE you are basing your upgrade on.

https://www.wheel-size.com/size/chev...4-62i--455-832

And if it helps I have a standard 2SS non 1LE

I use currently 305/35R20 rears and 285/35R20 fronts with 20x11 rear wheels with 43mm offset, and 20x10 front wheels with 20mm offset (At 35+ aspect you want to be careful on the rear driver side not to rub the wire harness this can be easily relocated I had mine relocated to be safe but a lot of people say 305/35R20's are fine without moving the wire harness) I sport Nitto 555R2's on the back and standard summer tires on the front (FYI Aturo AZ850's are dogshit for the front) But I do mostly drag racing soo the rear tires are what matters in my case.

The reason why I say be careful about the wire harness at 35+ aspect ratio is while normal driving is fine, if you do hard launches from a dig, the car will squat and that squatting can rub the wire harness. In my case I do a lot of drag racing so I chose to move my wire harness regardless if it was necessary or not.

[Hostile_1LE]

I would say, you would need a WICKED setup to get 0 wheel spin from a dig. If you just want slightly improved traction from a dig, I'd get either a 20x11 305/30r20 and 20x10 285/30r20 and run something like a as season in front and something like an NT01 in the rear.

For better traction, 17x10 wheel in back with 305/45r17 et street ss or R

[DeuceCam]

Try and get the overall diameter of the wheels/tires as close as possible to the OEM LT1 setup.

I switched to 19x10 front wheels with 285/35 tires and 19x11 rear wheels with 305/35 tires on my LT1. The ESC/TCS is slower to intervene compared to stock with this change, so I get a little more wheel spin now before the nannies takeover. With only TCS off (ESC still engaged), the car will still pitch sideways from a launch or 5 mph rollout under WOT. Handling/stability in turns is massively improved compared to the OEM LT1 setup.

I went this direction--instead of the SS-1LE sizing with more tire options--because it was less of a variance in size compared to the OEM LT1 setup. Unfortunately, the overall diameter of the OEM LT1 setup is the largest of any V8 Camaro, aside from the ZL1-1LE, as far as I know.

[BatMobileLT1]

Originally Posted by arpad_m

JohnnyMac, there are tens if not more threads about tires here, check out the Tires / Wheels subforum

My recommendation, as always, is to switch to OEM SS 1LE wheels and a set of ultra high performance summer street tires such as the Michelin Pilot Sport 4S or the Continental ExtremeContact Sport 02.
......
If you go this route, my setup is 1LE wheels and 315/30/20 tires in the rear / 275/35/20 in the front, Michelin PS4S. Sizes are important, you can't deviate from your existing front:rear height ratios by more than ~3% without a custom tune, or your ABS and StabiliTrak systems can go haywire.

This is what you want - OEM SS 1LE wheels or the MRR17 replicas of them and 315/30/20 and 275/35/20 is best size combination for those wheels to keep close to the original tire diameter.
If my budget allows this spring, I was thinking of getting this wheel/tire setup for a summer performance upgrade, great to hear this is working really well for you arpad!

JohnnyMac - Just one special consideration for LT1 model that we have, since we have smaller rear brakes than the SS model I recommend trying to keep the combined wheel+tire weight of the new much larger rear wheel setup at or below the current weight of the 8.5" wheel + 245 run-flats to make sure you don't put more unsprung weight on the rear brakes just to make sure you don't potentially hurt braking performance.
Fortunately, at least with my OEM wheel+the heavy runflats it comes in at ~60lbs which with quality wheels and top non-run flat summers or all-seasons I think should still be similar or less even at large 315 size.

Also, if your budget can't swing the significant $$$ for this setup (or for other LT1 owners that are still on stock wheel/tires) my current setup with upgraded rear wheels to matching 9.5" OEM wheels + 275/35/20 non-run flats high perf tires (Conti DWS06+ all seasons for me) is still a really good upgrade on looks & performance to get to same as stock SS (non-1LE) wheel/tire combo with great bang for buck vs the stock LT1 245 square setup w/run-flats and is almost perfectly same tire diameter.
Hope that helps - getting off the stock setup will be great upgrade for your LT1!

[Bad Anvil Garage]

100% take this advice!

"If you go this route, my setup is 1LE wheels and 315/30/20 tires in the rear / 275/35/20 in the front, Michelin PS4S. Sizes are important, you can't deviate from your existing front:rear height ratios by more than ~3% without a custom tune, or your ABS and StabiliTrak systems can go haywire."

I came to the same conclusions and have this setup. It's perfect.

[FlukeSS]

Originally Posted by Hostile_1LE

I would say, you would need a WICKED setup to get 0 wheel spin from a dig. If you just want slightly improved traction from a dig, I'd get either a 20x11 305/30r20 and 20x10 285/30r20 and run something like a as season in front and something like an NT01 in the rear.

For better traction, 17x10 wheel in back with 305/45r17 et street ss or R

Depends on the power.

I get 0 wheel spin on a dragstrip with Nitto 555R2s at 305/35R20. Street is street, but on days over 80 degrees F I can slam the pedal to the floor from about 10-15mph and not spin (Do not recommend trying this below 80 degrees F with Nitto 555R2's at my power level.)

Also note to the OP: I have a tuned wheel setup for winter and summer use. Because of the 35 aspect ratio rear tires I use. My rear wheel diameter overall is 28.4" Keep it below 28" and you should be fine without having to tune your wheel size. But do not think you can run 315's without consequences even at 30 aspect ratio.

But at 305/30R20 you should not need a tune.

315's are not stock tire sizes on any Camaro. Even the ZLE uses stock 325/30R19 on the rear. SS1LE's use 305/30R20's, LT1's use pizza cutters by comparison.

Like I said use that website I gave you it shows you the stock tire sizes you can scale up to safely. Anything else do your homework first before you commit. Not all tires are the same diameter despite what the width and aspect ratio tell you. It can vary based on manufacturer what the actual tire diameter will be.

[BatMobileLT1]

Hey JohnnyMac,
You've gotten some great recommendations above - give us an update on what you are thinking of going with?
(and just curious - are you still on stock wheels and the square 245 run-flats now?)

[p47dman]

Hey Bat, post pics of those carbon Flash wheels if you could, please.
thanks.

[BatMobileLT1]

Sure - Just note that these Black Carbon Flash Wheels are just optional OEM wheels.
I just ordered matching 9.5" rear wheels from Midwest Wheel and Tire that sells OEM wheels.

[p47dman]

Those are nice, thank you. I had not seen them before.

[Corky]

I wish they'd offer those wheels in the 1LE specs... Mine has those as well and it's tough to give the styling up even with the many benefits of changing them out...Here's mine on the dealers lot when I picked it up...

[Green82]

i run 315/30/20 on the rear and 275/35/20 on the front with nitto tires and i still spin like crazy