[seanblurr]

So I was lucky enough to be able to try a set of ZL1 1LE wheels on my SS 1LE tonight to test the fitment. A few people, including myself, were very interested to find out the specs of these wheels to determine if they would fit cars with mag ride, well, we know the answer now.

The answer is two fold, and not quite as straight forward as you may think. If you are running aggressive front camber (i.e. anything more than factory) they WILL NOT fit without a spacer. I say again, they DO NOT fit if you have an aggressive front alignment without the use of a 5mm spacer. I currently have -2.6* of camber and the wheels would not bolt up. I had a 3mm spacer laying around and it allowed me to fully bolt up the wheels, however, the lip of the rim just ever so slightly rubbed the strut. I made a u-turn in the street and the metal to metal rub was very noticeable during the turn, fine when driving straight. So what does this mean?

The answer is that if you do not track your car and you maintain the factory alignment specs, these wheels will clear just fine. If you run any added negative camber to the front, you will need a spacer.

For clarification the wheel specs are:
19x11 et11
19x12 et41

As these share the same front wheel specs as the Z28 wheels, which we have seen before, just like those they poke out quite a bit on the front. Add an extra 2mm from what you see in the pictures below to imagine how it would look with a 5mm spacer. Personally , if I were going to run these they would be a track only wheel and the poke wouldn't matter. I'd be hesitant to run these as a street wheel though, as you will get quite a bit of road grime being thrown at the paint.

One solution is the addition of the C7 Z06 fender flare like a fellow member did on his SS 1LE, this would nearly cover the poke at the top of the wheel. Another, more expensive option would be to try to fit the wider ZL1 fenders. Of course, this isn't an issue if you already have a ZL1. We already know how these wheels will look on a ZL1... *cough* ZL1 1LE... *cough*. However , for you ZL1 owners keep in mind that we do share the same mag ride struts, so you too will need a 5mm spacer, thus it will probably poke a tad on your cars as well.

To reiterate, below is an SS 1LE with -2.6* F camber and a 3mm spacer.

[BradfordCamaro]

Cool.
Info helps for ordering custom wheels as well

[Eric SS]

Very nice. Thanks for doing that. Another option now would be to use the Moreno Motorsports camber plates. You could probably get away without a spacer. I agree with you that the poke is too agressive for my taste on the street but if there is no clearance issue with the fender lip on the track, it's an option.

[Ak1LE]

WHERE are these wheels available!?

[Carlos_MRRWheelsInc]

Nice job Sean !! great post.

[Ryephile]

Yea wow, pokey outie, just like the ZL1 1LE. Thanks for sharing!

Originally Posted by Ak1LE

WHERE are these wheels available!?

Forum Sponsor That GM Parts Guy has them listed on his website. HERE

[R.C. Collins]

Agreed. Definately needs flares or wider fenders.

[WhiteNight]

Do you think the rears would rub if the car was lowered? Also are the MAG shocks physically larger in diameter than non MAG struts?

I'm thinking of doing OEM 19x12 rear and MMR 19x10.5 front.

[OminouSS]

Been up in the woods with no service for 3 days and you drop this bomb? I figured 3 rims were lost in transit.

What does the adj camber plates do for this equation, if anything?

[seanblurr]

Adjustable camber plates would allow you to run minimal camber using the factory camber bolts, thus giving you more clearance between the rim and the strut. You could then get this camber back through the use of a camber plate.

[Eric SS]

Originally Posted by OminouSS

Been up in the woods with no service for 3 days and you drop this bomb? I figured 3 rims were lost in transit.

What does the adj camber plates do for this equation, if anything?

You could probably run these and camber plates and still get probably 3.5 degrees all day long. 1.5 degrees at the knuckle and 2 more at the tower?

[glamcem]

Thanks for the information.
It's a bit hard to tell how much is the poke from those angles do you have any pictures from the front and rear?

[MatthewAMEL]

Haven't there been multiple guys saying the Z/28 wheels bolt up with no fitment issues?

Are you saying the front's rubbed because you are running more camber than suggested by the HP Supplement? If you use -2, will they rub?

[LSmith353]

It's all about the backspacing. These wheels have 9mm less offset than the OEM Standard ZL1 and SS/1LE wheels but they also have 4mm more
backspacing. That puts the back edge of the rim almost exactly (within 1 mm) of the back edge of a 10" rim with a 25mm offset. Those of us running these wheels have issues with aggressive negative camber as well.