[Danny_6725]

I could have sworn I ran across a thread that had a table with all rim sizes and offsets for both the coupe and sedan. Can’t find it for the life of me.

Any of you guys have ever ran an 19x11 33et on their V2 coupe, stock suspension.

will be running continental extremes 285/35/19 tires.

Trying to figure out if I’ll have any issues running these on the rear of my coupe

 

[RocketSled]

?? a 285/35-19 is, if I recall, the stock Coupe rear wheel size. If my memory is foggy and that's wrong, I'm pretty sure it's damn close to the stock tire size. You don't even need new rims for this, the stock Couple rim would be fine. Change the rims if you want to spin a fatter tire like the 345/30-19s I'm running on the back of my Coupe, or the 285s I'm running up front now...

 

[MrSurly]

The 285 IS the stock rear, it fits with no problem...hell I run the stock rears (wheel and tire) on the front.
There may be an issue with the offset, though. I need to go look at something.... brb

EDIT to add: The stock rear wheels are 19x10-40 offset, youll be fine with those wheels... but they'll poke LESS than the stock setup. If you would like more 'poke' you'll need more offset or maybe spacers.

 

[Danny_6725]

Damn I didn’t even know you could go that wide in the front of the cars. I’m getting a pretty sweet deal on Rohana rfx11 for the car. That’s why I was asking

 

[MrSurly]

Damn I didn’t even know you could go that wide in the front of the cars. I’m getting a pretty sweet deal on Rohana rfx11 for the car. That’s why I was asking

You might want to take a look here

 

[RocketSled]

285/35-19s on 11" rims, tires just barely clear the inner fender liner when the wheel is turned to lock.

345/30-19s on 12" rims, rim just barely clears the stabilizing link on the back side of the rear hub.

I don't believe it's possible to fit a wider tire up front or out back without modifications like removing fender liners/tubbing or grinding away material. The correct offset is critical, since the clearances are only on the order of maybe a Centimeter or so a few mm one way or the other will matter. I know what the correct offsets are since I've been running this setup on my Coupe for over a year now. But I bought the wheels from someone who did the work and I promised not to disclose their numbers.

But, if you buy your wheels from Best Wheel Deals (a site vendor), I can confirm they know exactly what to sell you...

 

[Blades1_99]

I'm running "stock" looking rears that I had widened to 11 from 10.5 to run 325 on my Coupe. No offset.

 

[MrSurly]

No offset.

Ya know, that ain't right.
They probably had 30mm or similar and then a little was added when you stretched them a bit.
If you had 11" wheels with actual zero offset the wheel would poke nearly two inches further toward and out of the fender than the stock coupe wheel.
Somethin didn't translate

 

[Danny_6725]

Decided to check this website out. This is what they’re spitting out. Tells me I’m about .77” sticking out more with the setup I listed above.

if that is true then these wheels will fit and my tires just make it to tuck underneath the quarters without rubbing. I took a caliper out with a straight edge and measure directly from the tire.

However, I don’t think there is any room to go with anything wider than a 285. It is just barely tucking in.

 

[MrSurly]

That is about right. You have quite a bit of room on the inside that would allow for a much wider tire but you'd need a wheel with more offset. By the way, 11" is wider than reccommended for the 285 tire.This might have an impact on tire wear.

THIS WHEEL CALC TOOL is better

 

[Danny_6725]

That’s a nice calculator. The one I sent was the dumb down version lol but you are right. It seems like the tire might get stretched a little bit. I think I should be okay, recommended wheel width is 10.5 for a 285. However, there are a few sites that say 11” rim should run a 285 or 295. I guess it depends on the tire as well.

theres gotta be some margin of error for tolerances and manufactures. I think I should be just okay, but def don’t think I can get away with any wider tire without a different offset. Unless I roll and pull the fenders and no chance in hell I’m doing that to my V. Kind of sucks, but the deal is too good to pass up. Will post pics once I get them on if I do decide to pick them up

 

[MrSurly]

I'm a fan (obviously) of getting the very widest tire I can under there. Currently running 325s probably up to 345s on the next go 'round.

 

[Danny_6725]

Honestly love the look of wide tires too. It’s kind of a trade off though depending on the rim. I like the concave look in the back as well but it’s tough to get everything you want.

what wheels are you running with the 325s?

 

[MrSurly]

Corvette Z06 wheels that are in the link I posted earlier <HERE>

https://uploads.tapatalk-cdn.com/20210312/fb7039727096486acca0bdb390cd90d9.jpg

 

[Danny_6725]

Those look awesome! I thought about vette wheels too. Like the look on them

 

[MrSurly]

Read the thread, ther is another coupe with Gran Sport wheels....

 

[RocketSled]

The issue for me with the Corvette wheels is that the Corvette front wheel is 1" shorter than the back. Corvettes since the C5 have a stagger (my C5s had 18" rear and 17" fronts, but they both went up an inch with the C6 and then again with the C7). So on the Corvette the front tire is smaller diameter than the rear. (not sure about the C8). But the Caddy does not have a stagger, the front and rear tires are the same diameter. So when you use Corvette front wheels up front on a V, you have to run a taller sidewall to compensate for the smaller diameter wheel. I don't like that look. It should be the rear tires that have the taller sidewalls, if there's going to be a difference at all. So IMO you really want to run 4x Z06 rear wheels all around...

 

[SimplyDreamin]

I'm a fan (obviously) of getting the very widest tire I can under there. Currently running 325s probably up to 345s on the next go 'round.

I'm always jealous when he drives the Viper to work.

His rears are wide. I'm sure they are stock, but I'll look to see the size next time he drives it to work.

 

[MrSurly]

The issue for me with the Corvette wheels is that the Corvette front wheel is 1" shorter than the back. Corvettes since the C5 have a stagger (my C5s had 18" rear and 17" fronts, but they both went up an inch with the C6 and then again with the C7). So on the Corvette the front tire is smaller diameter than the rear. (not sure about the C8). But the Caddy does not have a stagger, the front and rear tires are the same diameter. So when you use Corvette front wheels up front on a V, you have to run a taller sidewall to compensate for the smaller diameter wheel. I don't like that look. It should be the rear tires that have the taller sidewalls, if there's going to be a difference at all. So IMO you really want to run 4x Z06 rear wheels all around...

Well, it IS a long thread that linked above and I don’t blame you for not reading it.
The detail revealed in that thread is that I shared your issue in that I had the same dislike for the 18” fronts.
SOoooooo I found aftermarket REPLICA wheels for the fronts specifically to fix that. OEWHEELSLLC makes the design available in seven or eight sizes that Chevy never sold to cater to the F-body and narrow-body Vette crowds.
The rears are OEM 19x12s and the fronts are copies in 19x10. The front tires are 285s exactly as originally used on the rear. The tires are all the same height, same sidewalls.
Hopefully it doesn’t have the weird look of staggered heights as the tires are within an eighth-inch OD.

 

[Blades1_99]

Ya know, that ain't right.
They probably had 30mm or similar and then a little was added when you stretched them a bit.
If you had 11" wheels with actual zero offset the wheel would poke nearly two inches further toward and out of the fender than the stock coupe wheel.
Somethin didn't translate

I get what you are saying, but they just added 1/2" in the barrel and it was off to the races.

No nothing super special.