18x11.5 with 315/30R18's should fit up front with maximum backspacing, an aggressive pull/roll on the fenders, and a lot of camber, like 3 degrees. Not for the feint of heart. May want to trim the back of the fenderwell and extended steering stops.

Those wheels look really nice. If I can sell my other set of wheels I may have to buy a set in 17" set for rain/street tires.

FYI, if you check through the 17" pdf, the low offset pad wheels weigh over a pound less. If you don't need the brake clearance they're probably worth going with.

Do you even have the rear fenders rolled?

 

front fenders are rolled, rears, i tried to roll but they are so damn stiff i couldn't get them to budge, so they will stay as they are for now

 

It just struck me how crazy this is getting, since no car ever came with front wheels wider than 10.0", AFAIK. I'm seriously considering some 18 by10.5 inchers with some 285/35 tires for summertime fun.

 

When i first opened this thread and saw the title i was thinking oh boy this is not gonna be good looking at all. but holy crap your car looks badass. Loving your engine bay too.The stance of your car is perfect. I too would like to see some head on shots of your car with these rims on there. Head on shots and shots from the back.

 

Wheels look killer, but man those are pricey.

 

What is your rotor hub thickness? You are running 6.5" bs?

 

I was debating on these wheels or my street lites. Went with black street lights but glad to see a set of rts's on a third gen. Car looks great and engine bay looks freakin clean!! Well done and I'm jealous you get to road race! Looks like a blast!!

 

that looks bad ***

 

Should be nominated for COTM, not sure which month. LOL. Form follows function.

Noticed TKO600. Do you have build info for that? I am thinking that the TKO is lighter and plenty for me.

 

Vurry nice!

 

Gorgeous car brother!

 

wow man, that is an AWESOME ride right there. thats something to be proud of. nice work

 

That stance is amazing and beyond functional. IMO if it were to be lowered an inch, maybe two, it would the best stance Ive seen on a third gen.

 

Just bumping this one up. Car looks Bad *** man.
I want to put The same rims on my vert.

 

I was able to notch my brackets and then box them in with some steel plate to add strength back in. I also used a bottom plate to sandwich them with the fender well. Absolutely no movement occurs.

The wheels look great, I was thinking of going with a full set of 17 x 9.5 but if 10.5 works I will gladly step up to that. Do you drive it on city roads? Does it ever want to dart on you?

 

I had 18 x 10 all around with 285s

around town driving wasnt bad at all didnt dart or felt unsafe at all if the road was really bad I mean really bad it will catch a rut at slow speeds under 35mph but its nothing to be that jump out like oh wow I want to go narrower on the width lol

all in all I had nothing bad to say , I drove it everyday not a weekend car trying to go 10.5 all around in near future

 

Unfortunately you can't fit 17" x 10.5" wheels on the front - they will hit the tie rods, but 18" x 10.5" will work.

You can get some pull depending on the road. My car has work steering linkage so it pulls no matter what - once its replaced it should be 75% better. Customers have noted that there is a slight increase in roads pulling the car around a bit more than stock 245 width tires - but nothing to be concerned about.

 

That's great to know about the 17's! I should have been more clear and said I would go with the 18x10.5 (a wheel different than his though). But again that is great to know about the 17s. Thanks. I had always assumed anything larger than a 275 tire or 9.5" rim would require body modification. This is great.

 

Worn steering components plays a part , especially the rag joint my last thirdgen had a worn one and steering linkage and it pulled with stock tires , once I replaced parts there was big improvement still little play but alot better than before , I have jeep steering shaft havent used it yet wondering how the feel would be vs stock rag joint with 18x10s

I think 295 on 10 or 10.5 would be largest with out body modification

 

I haven't been on these forums for some time, been busy with other things in life, but thank you all for the compliments. I'm still really happy with the purchase, I wouldn't have done it any differently.

As far as darting on the road, the above comments are correct. You may notice a little bit more than a 245 tire, but nothing too concerning

GoJoe - " Noticed TKO600. Do you have build info for that? I am thinking that the TKO is lighter and plenty for me."

Search my name on the transmission section, ive posted a few things on there about the install and results.

 

I may be dreaming, or even clueless, but it seems to me that if 315s on 11.5s might fit, then the widest 305s on 12s should also fit. Seriously pricey, but Pirelli P Zero Corsa Systam Asymmetrico II N1 305/30R19s, which are streetable track tires with a tread width of 12", and are rated to 11.5" wheels ($556 ea.) could be stretched that little, still look square, give the best street cornering possible without a widebody, if the spacer thickness was right. The 19x12s are relatively affordable at $ 205 each, far less than custom 11.5s, while wide sticky street tires are about this pricey in most similar sizes. For my own, I've decided against 315/30s on 18x10.5s, and if I go 18x10.5s for summer street use, it'll be BFG Rival 295/35s. Still, I can't stop wondering about tucking 305s on 12s.

 

Are the 19x12's corvette replica's? I'm guessing the wheels will be close to 30lbs or even more... plus 3-4lbs of spacer at each corner. The 19's will give you even more space to run more backspacing. Stretching the tire should work at that size with an aggressive roll and lots of camber. You could pinch the tire a little on a 10 or 10.5" wheel though with the same backspacing and have room to spare.

With the large scrub radius on these cars I can't suggest going much over 275 on the street. My car with 18x10.5's and 305/35R18 R888's would tramline along every single bump and crack in the road. It was manageable, but I'd hate to have to drive the car all day on a road trip.

 

Pinching is the aspect that I wanted to avoid, because it seems to always result in the same fight. Half saying it's bad, half saying it's great. I don't like seeing 255s stretched onto 10.5s, though it's common, but to me a 315/30 on a 10.5 is a bad thing also. Maybe I should drive it for myself, but it's costly, and I'm already prejudiced, so how could I give it a fair evaluation. Lap times, back-to-back comparison? I see so many such things on the autocross forums, and the trend I saw that made me prefer stretch to pinch is that the guys trying ever-wider tires always seeing diminishing improvements and worsening behavior. Maybe I don't need 305s, since I'm fitting a small-block with plastic intake and aluminum heads, rather than an iron-headed big-block? I just love the idea of putting a new, $75,000 2014.5 Z28 to shame. They have 305/30R19s on 11s front and 11.5s rear, and I'd like a set of those 11.5s, but the 12s are readily available, even if they are heavy castings rather than light forgings. Just wanting thoughts on making it fit, thank you for the friendly response.

 

The problem with a 19" or larger wheel is that you need to go really low profile to keep tire diameter - or add more diameter to the tires (and lose gearing and raise ride height). 17 to 18" is the true sweet spot for the 3rd gens, 18" having a huge selection beyond 285 width.

In terms of optimal wheel width to tire is an easy one to calculate - optimal tire is 0.5" to 1.0" more in section width than wheel width. So a 255 tire (10.02") would work perfect on a 9" to 9.5" wheel - BMW uses 9" wheels for 255 tires, BTW. so a 315 (12.40") tire needs a 11.5" to 12" wheel.

Don't forget that all tires in the same section width do not have the same tread width either - I had a member on this board come into the shop with his BFG KDWs in 295-35-18 on a 10.5" wheel and the tread width was the exact same as the my 275-40-17 Falken 615Ks on a 17" x 9.5" wheel.

 

Would these work?
http://www.nlmotoring.com/XXR-526-Wh...p/52680432.htm

 

Although it's another subject, I do not think you will be putting that particular Camaro to shame unless it's driver is pathetic. Our cars can do quite well but it would take a powerful engine, very large brakes, serious suspension modifications and weight reduction. That would be well over 10K. Those cars were purpose built for the track and in some concerns have only done the minimum that is legal required to make them street legal.

 

Since no one answered yet, I'll give my opinion.
Will it fit? In theory, it should. The backspacing is a slight more aggressive (.06" less) then the op's wheel so it will sit a tad farther back.

You might have to put a very thin spacer in the front and/or pull your fenders.
I would highly recommend getting a 295 or 285/30 tire depending on the height.
Hope that helps

Nice looking wheel, not the nicest brand, but we all cant afford the top shelf stuff

 

Thanks for your reply. My thoughts were exactly what you posted. Given the price, I may give them a try.

 

Talk to heat seeker he has xxr 526 10 5 all around
Charcoal bird has a staggered setup

And I have had xxr 521 18x10 all around

You can do either 285 or 295/35 tires not much difference between the two with the 285 you will probably get better response and feedback and better turn in just little better to me

 

Now I'm wondering what the brake clearance is like on these. I have LS1 brakes and hope to go C6 Z06 in the future.

 

I have those same wheels. I'm waiting on tires but they will be going on my car soon. Judging by my math they should fit nearly identical to my SS wheels that have 2" spacers. I should also gain a little tire to fender clearance due to the slight stretch of the 275/35/18's. If anything I will add just a small slip on spacer to fine tune the fitment.

 

Should clear fine

275 going to be more of a slight stretch , I had 285s on a 10.5 and they where slightly stretch , but everyone definition varies and what is a stretch tire , but should look good if fitment on point , member on here has 255 iirc on 10" wide wheel and looks good

 

Are you running extended front ball joints?

 

Different tire manufacturers seem to have different ideas of exactly how wide something like a 275 should be. Couple members have posted pics showing 275s that were different widths.

 

I'd rather have a stretched tire over a pinched tire. I dont like the sloppy response you get from a pinched tire. I'm getting BFG Rivals.

 

I agree with you 100% and that's a proven fact .
no 2 tire brands are the same and my statements wasn't about running different tire sizes like 255 vs 275 or 285 and that the stretch each produce varies on a set rim width

I had different brands of 285 and some where wider or narrower due to brand variation and how the measure

Yea I feel the same way , stretch of the tire produces a stiffer side wall that creates increase response and tire stability

I like to run slightly stretch tire , 9.5 I use 265 and my 11 I use 295

For 10" wide I used 275 but felt side wall was a bit to stiff and 285 seem to be perfect ,but i havent tried every tire brand so there are some exceptions

For 10.5 I like the 285 there where very responsive

I really didn't like 275 on the 9.5 so I went to 265

That's my experience and it's very subjective as everyone likes the own feel

 

So i'm looking at getting these corvette wheels, and they are 18 inches. 2 inches bigger than the stock Rs wheels on the 1991 I am getting, I know i need off set for stock 3rd gen rear end but how much exactly?

 

Are you still running drop sindles? Do these wheels fit?

I'm looking for a wider option thats compatible with drop spindles and big brakes kit.

 

no i am not. most wide wheels will not fit with drop spindles due to the steering arm location

 

Your car inspired me! My 89 was running 10.5 replica c5 z06 wheels with 275/45/18s all the way around but the front would rub and scrape when I turned the wheel 85% of the maximum steering radius. I recently installed bf-goodrich force sport comp 2s on the front at 265/35/18 and eliminated the issue. I got greedy with the rears though and thought I could run 295/35/18 bf-goodrich G-force rivals on my fourth gen rear end and I ran into rear rubbing issues when cornering. How did you prevent yours from rubbing if they did?

 

How did you hook up the tko I have one new in the box. Like bell housing and clutch setup love the car!

 

I just found this thread and those wheels look amazing! That is a fantastic looking car Rlewi771!

I think, once my current 15" tires wear out, I'm going to be doing something like this for my 84.

 

The Weld RT-S wheels look great in terms of being very lightweight yet not too crazy expensive. But, unfortunately, Weld didn't really design them for road racing. The sales person I just spoke to said that some people do RR these wheels, and most do fine. She knows of a few cases where someone bent a rim, though.

 

I'm not the most well connected road racer, but the only person i know that bent their Weld RT-S wheel hit a wall and the mangled the outer lip real bad, but they were able either get a replacement or have the outer lip replaced...

 

They still look good to me and I'll be using it as a summer DD. I just wanted to know some specifics about the install before buying. Otherwise I'll likely end up going with the 17" snowflakes from yearone.

 

I am deciding between 18" RTS or 18" 2nd gen replicas from YearOne.

FYI if you're going for 17"; hawks is reproducing 17" GTA Cross-lace wheels.

 

Go for the wider RT-S wheels to fit a wider tire. I wouldn't go wider than 265 on a 9" wheel, but you can put a 295 on a 10.5".

 

OK...but with a basically stock suspension, other than hotchkiss lowering springs, what needs to be done to fit these 18x10.5's? Or any 18x10.5's?

I love the look of these 5-spokes, only ones better in my opinion are the billet snowflakes from yearone. But those are stupid expensive.

I saw mention of a shim or adapter in the front. I'm assuming longer studs, but beyond that, it looks like they bolt up with no issues?

 

18x10.5 or 18x10 can fit lowered and or stock height

Remember he is running wilwood bbk which will increase front track width
Stick brake setup would most then lickly need larger spacer for front due to that

Any slip on under 1/4" will not need longer wheel studs but it wouldn't hurt either
If you need bigger your going to need a bolt on adapter

Now you can possibly avoid that depending on specs of wheels you get I haven't seen what they offer in that aspect so can't say if there a true bolt on deal for 10.5 for stock brake setup

All and all it all comes down to well specs and a little measuring and research on your part

But 10.5 will fit like a glove if you do it right

Pic in my sig are 18x10 on sportlines

 

Just thought I would drop a picture of Stans car here.
Corvette 18x10.5 56 offset all the way around. 2" spacers front (C5 brake rotor) and stock 4th gen width rear end with 3/8" spacers.