thegame

What's better quality/lighter and no rubbing?? I'd settle for a nice 305 tire package for rears and whatevers normaal up front (245-255)??

\Boost Monkey/

Looked at Forgestar's site... and if lets say if you want an F14 style wheel:

The only option you would have is 20x11 et.+81 which is the max highest offset they offer that would come close. With that wheel, and a 305/30/20 on the rear, you would be about 8mm (tire to tire) outboard from stock.

Keep in mind, some guys rub at 14mm outboard from stock tire to tire, and guys are finding it clears ok (even lowered on stock bolts) on 6mm outboard from stock tire to tire. but that is a large gap we have in 'mm', you have to do some research on guys who are running a setup between 6mm-14mm outboard from stock (TIRE TO TIRE) and see if they are rubbing or not. Then there is factory tolerance issues which is an unknown range.

If it were me, and it seems you want a no hassle surefire safe setup, I think you might be taking too much of a chance only going 1/4" inboard from some guys who rub at 14mm and having to compromise on a 305 tire. The only way I would go with this, is if you had a large pool of guys who have run a similar setup with no issues. Maybe other guys can give input who have ran something similar.

I would stick with the plan, talk to Ben, and let him get you a setup that will be sure to work with zero possibility of any issues and get the tire sizes you wanted in the first place. If Forgestar offered a higher range of offsets, I might say differently depending on budget and what not.

\Boost Monkey/

Forgeline is much better quality. Forged monoblock (Forgeline) versus cast face and flow formed barrel (Forgestar).

thegame

Got it thanks Boost Monkey !!

B Stead

Forgestar has 20 x 11 79mm for the rear wheels. They don't list 19 x 11 74mm to 79mm. Since the 305/30-20 tire is taller than the 305/30-19 tire then the 20 x 11 wheel probably should be 79mm. These are about $500 each. Forgestar doesn't have 19 x 9.5 56mm for the front. There is a 19 x 9.5 50mm front that might be okay with a 265/35-19 tire.

Oz Superleggera III has a 19 x 11 75mm rear wheel. There's also a 18 x 9.5 59mm front and a 19 x 9.5 59mm front. Maybe use a 3mm spacer with the 59mm front wheels. These are about $900 each so many buyers would also price custom-built wheels.


Here's a fitment chart:

285 rear tire at 65mm offset
295 rear tire at 70mm offset
305 rear tire at 75mm offset
315 rear tire at 80mm offset but make that 79mm
325 rear tire at 85mm offset but somehow make it work at 79mm (For instance, T1 spring rates and 1" lowering)

Each wheel is on the standard wheel width for the tire size.

265 and 275 front tires are okay at 52mm to 56mm wheel offset
The 315/30-18 short diameter front tire is okay (but not perfect) on a 18 x 10.5 58mm wheel
.

Gadfly

Just call CCW; they will take care of you, one of the best quality wheel for very reasonable prices.

48supertruck

Give a HRE Wheels a call. They will build you the exact wheel you want in offset, diameter, width and color YOU want. They will custom fit the wheels to YOUR car. They are not some cheap cast wheel manufacture that happens to have the right bolt pattern in stock, so the they claim they fit your C7.

Gadfly

CCW will do the same thing for a lot less money, just a few less color choices.

\Boost Monkey/

Every one of the fittments you listed above by tire size and wheel offset puts the tire about 14mm outboard from stock. This is the same exact fitment as the TSW wheels and they are known to rub on the C7 in many cases (and some they don't). And even if they don't rub at stock height, for many others they have rubbed when lowered on stock bolts.

Point is, your size chart is a bit too aggressive and allows the possibility of rubbing depending on ride height, suspension geometry and tire brands used (IE: BFG KDW2's are known to have a very "large" and bulgy sidewall as compared to say a Falken FK452 for instance, which has a very narrow sidewall). There are quite a few things that could your setups rub and it has been shown through user experience.

"285 rear tire at 65mm offset" Puts the tire 14mm outboard (exact TSW sizes)
"295 rear tire at 70mm offset" Puts the tire 14mm outboard
"305 rear tire at 75mm offset" Puts the tire 14mm outboard
"315 rear tire at 80mm offset but make that 79mm" Puts the tire 14mm outboard
"325 rear tire at 85mm offset but somehow make it work at 79mm" Puts the tire 14mm outboard and it will 100% rub on a C7 in all cases at 79mm wheel with a 325 rear tire.

wysiwyg

Boost Monkey provides very sound advice.

I have TSW wheels and they did rub in the rear when lowered on stock bolts using stock tire sizes.
I was lowered all the way front and rear on stock bolts.

I had to raise the rear two turns and the front 1 turn and now the wheels do not rub.

Higgs Boson

You will only find more and more people with rubbing TSW (and the like) wheels as they notice the eleventy billion threads in which we have discussed the exact same thing over the last couple of years.

I hope someone makes a new thread so BStead can give the exact same advice again and then be corrected by either me or Boost Monkey again (thanks for taking up the slack Boost Monkey in my absence, surprising though considering your staunch disagreement with me in the previous thread)....

I'd say make the wheel info a sticky, but no one reads stickies before posting their own thread because their car is "unique" and they have a "unique situation."

lawdogg149

Mine dont rub. 18x10.5 square setup Tsw interlagos. $255 each

But what do i know.

StingerBG

Ben,

What wheels are these??! They almost look like Z28 Camaro wheels! Just wondering because I like the look. I was previously interested in Forged 360 Mesh Fives because they were similar. These aren't the 360's are they? It may still be a little while before I get wheels (working on a SC kit first), but I'd like to know to keep the information available. Also, I would probably also just want a 305-315 max tire in the rear. What is the width of the wheel shown here?

Thanks!

\Boost Monkey/

This is important, you may have missed it:

EDIT: Man god damnit I just noticed your car is a Z06/7 not a base C7.... The OP has a BASE C7, not a Z06/7. Of course the TSW's will fit on a Z car...you could probably fit 2 sets in tandem bro....

In this thread, the OP made it clear he wanted no rubbing at all. TSW fitment and anything +14mm outboard has proven multiple times to rub on some guys cars. Others are ok. But OP doesn't want to take that chance.

If it was me in this same situation, and I liked the Forgestars, I would take the risk of a 20x11 et.+81 on a 305 tire and I would probably not rub at all, even when lowered max with stock bolts. But with aftermarket bolts, and less suspension travel gap between when the tire reaches the fender lip, I might just rub at that point only. I can also adjust camber slightly within stock parameters to adjust accordingly if I need to. But that's me.

BUT...I am not the OP, and he wants to take no chances or have to haggle fit a setup.

Higgs Boson

Boost Monkey (do you mind if I call you BM?),

don't mind lawdogg, he is smarter than that, he is just giving us tiny wheel well base guys a hard time. i am pretty sure GM did it on purpose for one more reason to upgrade to a Z06....

\Boost Monkey/

Oh, ok

Ya, it's become clear to me our base setup is a GM cost savings deal meant to ultimately support the Z06/7. Has it always been this way with the Corvette generations? We are the little bro with the hand-me-down pants.

thegame

I def do not plan to lower my car at all. NJ has enough steep driveways and obstacles that make stock height prolematic enough. Does that make a difference ?

Higgs Boson

No it hasn't. The 01-04 Z06 was basically a stripped down notch back version of the regular vette with a little more HP.

The 06-13 Z06 was more like a different model, different frame and suspension, completely different engine, etc.

The 15+ Z06 is basically a widebody base model with a supercharger (and a few other knicknacks that you can basically bolt onto the base). They have the same frame, etc. I don't think the base is designed as a cheaper version of the Z06 but it was designed and the Z06 was made to be "more so." There are lots of people on here that probably know exactly why each bolt has the number of threads they do so maybe they will chime in on this.

\Boost Monkey/

Yes, it does.

But, you have to be 100% sure you will never lower the car if you get wheels that are borderline fitment. Also, you may well be locked into a maximum tire size even if you want to go wider tire down the road. You wont be able to because the aggressive offsets wont allow it.

In addition to this, a fat passenger (problematic if you dig fat chicks) could cause you to rub on some occasions as could hard cornering.

You COULD however get the Forgestars (20x11 et.+81 w/ 305/30/20 which will put you at +8mm outboard of base tires), and if there is slight rubbing you could go the process of elimination route and do the following to remedy it (general steps for everybody):

1. Raise car (if lowered) in incremental steps until no rubbing
2. Dial in some negative camber (appropriate amount) without having to go to much as to increase inside wear on the tires too much (toe is the bigger offender here, but too much negative camber can increase inside tire wear)
3. Roll fenders slightly (NOT POSSIBLE WITH C7)
4. Decrease a tire size
5. Apply any combination of the above steps.

WORST CASE: you have to go down to a 295/30/20 and that will absolutely work as you will only be like 4mm outboard from stock. If a 295 is worthless to you, you sell the wheels but will of course take a loss.

But it is my honest belief that a 20x11 et.+81 will work for you on a 305/30/20 as you do not plan to lower the car. I seriously wouldn't tell you that if i didn't really believe it. However, understand that you taking a chance.

First a foremost, someone should have asked you: What is your budget?

Ah ok, so this isn't really the norm for Vette's.

I agree, I feel like 'adding things on' to the base was the name of the game for the Z as GM was concerned. Seems like (even as far as to just supercharge the LT1) it was just a GM modified base car with body work like you said. In the case of hub locations, though, I feel like the Z06/7 was thought of ahead of time to save cost (it would make sense to do so). It would be interesting to find out for a fact, though.

thegame

LMAO Fat chicks!! No the wife is quite fit and I def will never lower my car. I have never lowered any and won't start now. Budget I want to buy once and keep the car for a long time so money isn't a huge deal. I'm thinking 3-4k but id spend more for the right rim.

To keep this perfectly simply I want to keep 19s up front and 20s in the rear with at least a 305 tire. That is really my only want. Should be pretty simple. I would look at a real forged wheel because I want it light and good quality. When I am ready to purchase can I simply PM higgs or boost monkey and you guys can help me order what I want??

I will have the rims shipped to ECS because the same time the ECS supercharger kit and meth go in is when I want the new rims and tires.