^^^^^^Your car is a C6 ZR1 correct??? I keep thinking we were discussing a C7 GS here but I guess that's the car the OE poster was inquiring about wheels for.
If you don't track and just drive the car on cruises and stuff I'm guessing running only -1/4' camber all around should be fine but if you do some corner carving on those cruises at some decent speeds you will be wearing out the outer edge of your tires. That tiny amount of - camber on the rear wheels tend to make the car twitchy when taking corners at speed (meaning tendency to oversteer). Most cars run at least -1' of camber in the rear to make the car more stable when corning aggressively.
As for the front wheel offset +36 on a 10.5" wide wheel moves the face of the wheel out 10.4mm compared to the stock C6 ZR1 +40mm 10" wide wheel:
Alloy Wheel & tyre fitment calculator - it calculates inset, poke, speedo error, tyre stretch and loads more.
www.willtheyfit.com
but compared to a stock C7 ZR1 front wheel it's 4.3mm out but 8.3mm towards the suspension but it will still fit no issue.
Alloy Wheel & tyre fitment calculator - it calculates inset, poke, speedo error, tyre stretch and loads more.
www.willtheyfit.com
I actually wished my RSR front wheels were a +36mm offset as I tend to find the front wheels are tucked in more compared to the quite radical +47 offset of my rear wheels.
I don't recall what suggested alignment settings should be on a C6 ZR1 but in most cases GM will probably want at least -1' camber on the front wheels.
I had my alignment checked last year on the ZR1 and had it adjusted to my specs (fairly close to GM specs but I deviated from them on camber). I plan to track once my car is ready so currently I run -1.25' camber on the front wheels, +8' caster and stock toe settings. On the rear it's -1' camber, +0.6' caster and 0 toe. Car goes straight down the road (with some sensitivity in truck ruts but hey........race car) and corners like a dream (stable and predictable). I've never had issues or major inner tire wear on all my cars running -1' camber.
I had camber plates on my GT500 and also ran -1.25' camber on the front wheels and that car also drove pretty good. For my POS everyday driver in the summer time (Suzuki SX4) I run a 17x8" wheel 245/45/17 Indy 500 and I have camber bolts on that car and also set up with -1' camber. That car this year I bought and plan to run a 17x8.5" wheel with the same size tire so I might adjust my alignment accordingly we'll see.
- camber is good, if you don't go too crazy with it tire wear is minimal for regular street and limited spirited driving.
I bought the GS at 3000km, now 8000km and the rear tires are done, front one almost done to, all wearing badly on the inside. I did mesure the alignment before I put it away for winter and it was from-.9 to -1.0° camber. To agressive for my kind of driving. I will put new wheels and new Michelin tires on the GS, A set of Goodyear Eagle F1 Supercar 3 RF on the ZR1, new part numbers for 2022, similar to the Michelin Cup wit about 5/32 new, believe me, they wont see the rain. Someone post that a lot of negative camber is putting a lot of pressure on the weakest part of the wheel, I do beleive it's logic especially on very large rims, with very low profile runflat tires. My search for wheel is on again. At least I have everything in hand to correct the rear alignment.
