nolimits

What works well and fits? I'd like to get wheels & R compound tires, wheel brands sizes & tires? Forgeline, any others? Hoosier R6, Toyo 888?

isnider

I've heard the factory Grand Sport wheels 18" front & 19" rear will clear the rotors?

Then an easy choice for Hoosier R6's

This would be the least expensive option unless you budget allows for custom forged wheel from CCW or someone like that.

I'm not a good enough on the track to benefit from the Hoosiers yet but I think I would go with the above the rims in Black from House of Wheels or alike.

Does anyone know if Hoosier has any plans for the R6's in ZR1 sizes?

Ian

Kyle Lemish

The 18" Z06 wheel wont even clear the rear caliper on the ZR1. I would be very shocked if the GS wheel came close to clearing the front!...... CCW is the only 18" that I know of that can clear them.

isnider

I'm not sure we are talking about the same set-up. I know standard race tires are 18" (front and rear) and the least expensive to buy especially with some laps on them from real race teams, but I was suggesting the GS wheels are the same as the Z06 tire sizes which Hoosier R6 are available, but I had heard that the 18/19" GS wheel has a larger interior dimension to clear the rotor than the Z06 18/19" which will not work on Zr1.

To be clear you would use 18" R6 up front and 19" R6 in the rear with factory GS wheels.

Ian

QUIKAG

I am interested in this too. I don't think I'm going to be satisfied with the stock Michelins for hard track day work, so I'd like a reasonably priced set-up for some suitably wide R-comps.

Can anyone confirm 100% the GS wheels will clear our rotors/calipers?

Kyle Lemish

I can confirm that a Knock of GS 18 wont clear the rear caliper.....so again id be very shocked if a factory barrel was enough larger to clear the front?

The knock offs are useually produced to the same dimensions as the factory wheel.

Call CCW they can make 18's to fit all the way around and reasonably priced (about $750 a wheel) My 2 rears will be here monday with DR's on them.

jvp

The Forgeline EV1R 18" will fit around the front caliper (and therefore the rear). Talk to Anthony at LGM; he can hook you up with the same setup that I'm running.

For tires: Toyo R888s are my choice.

jas

dg144

I run sport cups on my Z06 and was very impressed with the stock michelin tires on the ZR1 at Spring Mountain, I couldn't believe the grip the ZP tires achieved and the electronics on the car are amazing, I wouldn't alter the wheel size as this may disrupt the active handling, we ran the cars with all electronics and stock tires, truly surprising and amazing

jvp

It absolutely will not disrupt the active handling. I have plenty of experience to the contrary.

jas

Kyle Lemish

Do you run same height front and rear or did you keep the ratio the same front to rear?

jvp

Neither. The stock tire sizes are 25.8" front and 26.6" rear. The 18" Toyos I run are 24.8" front and 26" rear. Folks' concern about ratios, sizes, etc for the electronics are completely unfounded. As long as the fronts are smaller than the rears, all is good.

Take it to the bank.

jas

Kyle Lemish

Thats exactly what I was thinking.....Glad you can confirm it. What will happen when the rear is shorter than the front? and will it run fine as long as everything is turned off?

jvp

Yep. The biggest trouble maker will be the TCS, because it'll think you're constantly spinning your rear tires (ie, they're spinning faster than the fronts are). But if you have the system disabled, it won't be a problem.

Now, aero with shorter rears will be an issue. The car's aero needs the rake that it has with the taller rears. Reversing the rake will mess the car up at speed, and make it feel like the front end is floating. Not really a good idea.

jas

Kyle Lemish

That too is exactly what I was thinking theoroeticly.....This is only for my new drag radial setup with very minimal street use. I will report back once I bolt them on this week and see how it goes. I was told by one wheel manufacturer that it will send the car into a limp home mode and not work at all. My feelings were with TC off it will be fine. So im trying it anyway.

QUIKAG

What size Toyo's are you running, jvp?

jvp

The 335s in the rear and 285s up front. Both 18s, of course.

jas

EVILNESS

Fogeline makes a great set of 18s all around as well.

CarDude

I have tracked my ZR1 on the stock tires quite a bit. I set the track record for a stock street car on stock tires (at local track)...beating a few hoosiered/race suspended Z06s. I am planning on running 18 inch Hoosiers very soon. My stock tires have taken quite the beating. The track owners were very impressed with the abilities of the car...they were astounded at the abilities of the Michelin run-flats...frankly so was I!

Lasco001

I drive the 295 front and rear the 335 on Forgeline

The Toyo R888 is just top

nolimits

All, thanks for the great input, looks like there are a few choices so far. Enjoy the rides.