8-900HP wheel and drag radial recommendations for street and strip?
 

I have a built LT1 in a non Z06 that puts down 830HP. I will be adding fender flares to the body which will allow me to run Z06 width wheels on the car because I need more traction.

Currently I run 19" black replica Z51 wheels with Nitto NT05R 305/35/19 on them with stock Z51 wheels and stock run flat MPSS tires up front. They are decent from a 50+ roll on the street, but that's too high of a start mph for my preference. Initially on this setup the rear end would feel like it swayed at high speeds. After they have been used a little bit and run with a bit more air pressure (~30 psi) they do not sway anymore up to about 140MPH.

My goal is to find a wheel and DR combo that I can run on both street and strip, that will have the following qualities:

- **Combo Must be stable up to 150-160MPH**
- Needs to be something that can be run at the strip and get decent lauches (~1.4 60 ft)
- Needs to be DOT approved as I will use this setup for the street as well (yes I know they won't last long mileage-wise)
- Wheels need to be available in black or black chrome

For wheels, this is where I am at with options:

1. Black Z06 replica's in 18" - 18"x9.5" fronts and 18"x12" rears
My concern with this setup is weight as the replica's are a bit heavy

2. 18" RaceStar's - 18"x8.5" fronts and 18"x10.5" rears
My concern here is the rears are only 10.5" wide and I REALLY want to take advantage of my new ability to run full width Z06 sized wheels.

3. Black Z06 replica's in 19" - 19"x12" rears, OEM or replica fronts.
If I do this, I retain existing width as my current setup, but rear rims would be 2" wider on each side.

For tires I obviously already have experience with the Nitto's and can assume that moving from 305's to 345's I would get some better traction.

Other tires that are being considered are:

Mickey Thompson ET Street SS or ET Street R's. I hear these wander around a lot at high speed :(

Toyo R888R's

and some form of Hoosiers

Please let me know what setup you run for tires and wheels -IF- you are 800+ HP, and how fast you have had the setup without the rear end swaying back and forth. Thanks!

Ant

I run Nitto NT05R's 345/30/19 on OE replicas and OE's up front with run flats.

If you're talking 830 rwhp I would consider a Weld or comparable drag pack with 17" x 4.5" up front and 15's out back. It will cost you some $ to accommodate this, but no 18" or 19" dr is going to hook as well as a 15" dr, IMO.
Good luck!

^^^^^^^ What he said I've also been there done that and here's my new rear setup this is before lowering.

https://cimg6.ibsrv.net/gimg/www.cor...0c241386b9.pngWaiting on fronts now.

I previously considered doing a 15" conversion but wrinklewall's are hardly a streetable setup lol. Plus I don't want to spend $10K right now which is probably what it would cost. $2500 for conversion drag spindles, and by the time you buy Weld's and tires yea prolly close to $10K. I am curious though how fast have you guys had your car with the 15" setup on there and how stable was it?

15" are not wrinkle walls. They are still drag radials (unless you actually buy slicks)

What you want is near impossible. Drag radials that like street use, but then are able to cut a 1.4 don't mix. Problem most people don't discuss is drag radials heat cycle out fast when street driven. After ~1000-1500 miles, they don't hook well at all. To get good track performance, they should be kept to track only, and a fresh set. They typically harden and become useless far before you run out of tread.

The 305 Nitto's Ive got on my 19" replicas now are actually decent at everything still and they are almost 2 yrs old with many "saturday nights" on them and some strip time. They won't see a lot of overall mileage though as I only go "out to play" on the weekends. I wiuld say the current Nitto's have about 2K miles on them. I'm sure they can't cut a 1.4 60' anymore, but they are pretty stable up to 140 and provide good bite at around 40-50+.

I knew full and well this is a tall order, but im not looking for the perfect tire and wheel combo. Im looking for a combo that meets my overall requirements -decently- as my goal is to not buy 15 setups before I find what im looking for lol

In that case problem solved Nitto drag radials in the smallest wheel size you can fit without conversion. Just know that at lower speeds they will not hold but on street out of rolls you'll be fine just find the sweet spot (speed) that you know they hold and your gold.
Avoid dig races and you'll be fine. I had too many people want digs plus I got bit by the 1/4 mile track bug henceforth the conversion and 15's. I still have a set of replicas with 19" DR's for street and OEM's with runflats for trips.
Good luck and have fun!

Well, thats the challenge.. I need to be able to 1/4 it. Lol

Weapon X I believe is a CF vendor. They offer an 18" Forgeline drag set-up that might work for you.
Talk to Ben or Eddie, both guys are very knowledgeable, helpful and friendly.

I'll probably be calling them sooner than later :thumbs:

Best of luck!

We offer Forgeline track rated wheels and all drag packs and track packages, text or call anytime! 440-915-6166

We have 8 setups in the works for forum members and will take care of whomever needs em!!

Man your pretty much asking the impossible then. 1.You want to bite at track
2. You want stability on the street
3. You have a lot of power!!
Pick two of the above and call it a day cuz trust me as soon as there is a setup that does all it'll be on backorder immediately!

And thats why im asking around lol. How does the 15" setup feel at higher speeds and how fast has anyone had them? Can I expect to get a few thousand miles out of them before I am due for a new set?

What I'd like is to find something inbetween my Nitto NT05R's and a 15" conversion setup. Seems like theres not much inbetween though..

Tall order ..

I make in the range your asking about, ive recently sold my 18" replicas... Wanted something a tad lighter and different. Plus the stock rims are a pain in the ass to clean.
Anyway, ive replaced them with another 18" setup, forged. Plan on running the same 345 Mickey.
They are stable past 150, but ive also replaced my front tires with Contis, ditched the stock runflats.
Grip is good on the streets, car still feels safe when taking off ramps at speed etc... But a 1.4 60' may not be attainable unless you drop a conversion in the rear. I'm content with the setup at 1.6 ish 60 foots off the Mickeys.

My 15s are more stable than my 18s. I've run 4-5k on them, no issues. They hook 1200rwhp decent for first ~2 days and few hundred miles, then have to pedal 1st and 2nd once they heat set. Still much better than the 18s. Good thing is 15" DRs are about 50% less cost wise than 18s so if you go through 2 sets a year, that adds up quick.

18 or 17" ET Streets are decent options in between, and better than the 19" nt05, but still don't meet your needs.

My car trapped 192.8mph in 1/2 mile on 15s. Zero stability issues.

Both of these answers are truly helpful, thank you guys!! BooSSted, which wheels did you end up going with after the replicas? I was worried about how the 15" conversion would feel and those were the reassurances I needed. What I think I may do -

1 - do a 15" conversion to the car
2 - Buy an 18" setup for the street / roll racing
3 - Buy a 15" setup for the strip

I think this is my best bet to check all my boxes. Its not the cheapest solution, but I fully understand paying to play. :)

Unreal, what wheels and tires do you use for your 15" setup?

Street setup is 18" forgestars front and rear. 15" setup is weld RTS.

My car is a c6 FWIW. Just call Caryle for 15" stuff. He is the goto source for wheels/tires/spindles/etc

Was thinking about the LG drag spindle setup

What size tire you got on there Lucky? I'm assuming a 15x10" wheel with 7.5" back spacing...
I'm ready to pull the trigger on my wheels, but still researching what tire will actually fit.

Thanks,
John

15 inch wheel on C7 Z06
 

What are the changes that need to be made to run a 15 inch rear wheel on the C7 Z06?

Spindles, custom lower control arm and modified GM single piston caliper.