Best Square Setup for Street/Track? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Egghaus · 06-23-2024, 08:23 AM

My new to me 2011 SS needs new rubber and I want to change wheels anyway, so I'm planning on a 20x10 square setup with 285/35R20 tires. My goals are as follows;

-Ability to rotate front to rear
-More neutral handling
-Lighter than OEM wheel/tire combo

My question is regarding offset, the main choices are ET23 or ET35, I have seen people run either but no definitive answer as to why. I understand that ET23 will "poke" out further and give more suspension clearance, and at stock height I don't see any issue with fender lip clearance since the 285/35 is shorter than the stock SS tire (and it's the OEM 1LE front setup). However, I would like to lower the car 1" in the future, so I don't want to screw myself now with the wrong offset. I prefer the ET23 offset since it looks more aggressive. I would also like to do some autocross or track days which also plays a role here since there is more wheel travel than typical street driving.

Since I really only like the OEM wheel styles, I have few options. The 5th Gen 1LE/ZL1 wheels are great, but getting 4 front wheels would be a challenge, and the replica cast versions are too heavy to be lighter than stock. I have not seen a flow formed option for these available. That leaves me with the following;

-Factory Reproductions FR27F/MRR M228 - Z28 style
-Factory Reproductions FR35F - ZL1/1LE style
-MRR M017 - 6th Gen 1LE style

Anyone have pictures of the ZL1/1LE style? I only found a couple examples by searching the forum. I like the 6th Gen 1LE style, and it would be the lightest option at 57lbs per wheel/tire.

Egghaus · 03-16-2025, 09:00 AM

I have now read a bunch more threads and starting to think +35 offset is the better option. I have seen some pictures and don't think I like how the rear wheels stick out past the body with +23mm on the rear. I read that +35mm can be tight with strut clearance on the front, but worst case it looks like I can run a 3-5mm spacer without any other mods. Any further input from anyone? Wheels and tires are on sale right now so I'm trying to decide. Due to cost I'm thinking of just getting OE Creations PR208 ZL1/1LE replicas. Thanks.

FASTFATBOY · 03-16-2025, 12:56 PM

Splitting hairs with wheel weight, it's not an F1 car. MRR wheels are flow formed, I have seen posts on here saying the MRR wheel is 4 lbs lighter than the OEM 1LE wheel.

Call Apex Wheels, they have your answers.

Stock ZL1 offsets are +43 with a 20x11 rear and a 20x10 front with a +23. So four fronts won't work.

Egghaus · 03-16-2025, 04:40 PM

Yes the MRR flow formed wheels are 27-28lbs which is a good deal lighter than stock, they are also more than double the price of cast ZL1 replicas, Apex wheels are triple the cost and I don't care much for their styles other than the VS-5RS.

There are many older posts of members running 20x10 +23 all the way around so 4 fronts will work, the only issue is the rears will protrude past the body about 1/4-1/2". This becomes an issue if you want to lower the car but not at stock height.

06-23-2024, 08:23 AM	#1
Egghaus Drives: '11 2SS/RS LS3, '11 Silverado 6.2L Join Date: Jul 2019 Location: ON, Canada Posts: 12	Best Square Setup for Street/Track? My new to me 2011 SS needs new rubber and I want to change wheels anyway, so I'm planning on a 20x10 square setup with 285/35R20 tires. My goals are as follows; -Ability to rotate front to rear -More neutral handling -Lighter than OEM wheel/tire combo My question is regarding offset, the main choices are ET23 or ET35, I have seen people run either but no definitive answer as to why. I understand that ET23 will "poke" out further and give more suspension clearance, and at stock height I don't see any issue with fender lip clearance since the 285/35 is shorter than the stock SS tire (and it's the OEM 1LE front setup). However, I would like to lower the car 1" in the future, so I don't want to screw myself now with the wrong offset. I prefer the ET23 offset since it looks more aggressive. I would also like to do some autocross or track days which also plays a role here since there is more wheel travel than typical street driving. Since I really only like the OEM wheel styles, I have few options. The 5th Gen 1LE/ZL1 wheels are great, but getting 4 front wheels would be a challenge, and the replica cast versions are too heavy to be lighter than stock. I have not seen a flow formed option for these available. That leaves me with the following; -Factory Reproductions FR27F/MRR M228 - Z28 style -Factory Reproductions FR35F - ZL1/1LE style -MRR M017 - 6th Gen 1LE style Anyone have pictures of the ZL1/1LE style? I only found a couple examples by searching the forum. I like the 6th Gen 1LE style, and it would be the lightest option at 57lbs per wheel/tire.

03-16-2025, 12:56 PM	#3
FASTFATBOY Drives: 2013 ZL1 Join Date: Nov 2018 Location: Mobile Al Posts: 473	Splitting hairs with wheel weight, it's not an F1 car. MRR wheels are flow formed, I have seen posts on here saying the MRR wheel is 4 lbs lighter than the OEM 1LE wheel. Call Apex Wheels, they have your answers. Stock ZL1 offsets are +43 with a 20x11 rear and a 20x10 front with a +23. So four fronts won't work. __________________ 2015 1SS 1LE, Magnuson 2300 Heartbeat and headers. 550rwhp STD, 535 SAE.

03-16-2025, 09:00 AM	#2
Egghaus Drives: '11 2SS/RS LS3, '11 Silverado 6.2L Join Date: Jul 2019 Location: ON, Canada Posts: 12	I have now read a bunch more threads and starting to think +35 offset is the better option. I have seen some pictures and don't think I like how the rear wheels stick out past the body with +23mm on the rear. I read that +35mm can be tight with strut clearance on the front, but worst case it looks like I can run a 3-5mm spacer without any other mods. Any further input from anyone? Wheels and tires are on sale right now so I'm trying to decide. Due to cost I'm thinking of just getting OE Creations PR208 ZL1/1LE replicas. Thanks.

03-16-2025, 04:40 PM	#4
Egghaus Drives: '11 2SS/RS LS3, '11 Silverado 6.2L Join Date: Jul 2019 Location: ON, Canada Posts: 12	Yes the MRR flow formed wheels are 27-28lbs which is a good deal lighter than stock, they are also more than double the price of cast ZL1 replicas, Apex wheels are triple the cost and I don't care much for their styles other than the VS-5RS. There are many older posts of members running 20x10 +23 all the way around so 4 fronts will work, the only issue is the rears will protrude past the body about 1/4-1/2". This becomes an issue if you want to lower the car but not at stock height.