Halltech

Brett Gass, co-founder of Carbon Revolution, and Jay Leno, at Willow Springs on CR-9s.

Halltech's ULZ700 has sported the only set of CR-9s ever mounted on a Corvette, but it won't be the last.


http://www.halltechsystems.com/Carbo...els-p/cr-9.htm

TripleBlack99

I would consider getting these but I think they would knock me out of stock class in autocross. The stock rules say you have to have the same wheel widths.

I will be getting a c7 z06, and the wheel dimensions are 19x10 and 20x12.
The autocross stock rules allow you to do +-1 inch for diameter, but not for width.

So i would get these if they were 19x10 and 19x12, or 19x10 and 20x12.

Will these wheels ever be offered in those dimensions? in the near future? thanks - Mark

Halltech

Yes, I am told next year May or June.

rwillitt

Pretty, but I sure would feel bad the first curb I scraped one on.

usroute66 MKW

race tracks dont have deep jagged potholes that you cant see in time in heavy traffic , night or inclement weather
on public roads, would they shatter , esp in sports car applications where the tire sidewall is just a couple inches tall

Snorman

Is there a reason that there has only ever been one set mounted on a Corvette? If so, what is it?
S.

Halltech

Because no one else has stepped to the plate as of yet, and the sizes available.

They are only available in 19" X8.5 fronts and 19"X12" rears. We have been running front 235s Pilot SCs and 345 rears for two year now and the professional drivers like Johhny O'Connell and John Heinricy has told me that they have no issues at all with the setut. Johnny did say that he could feel a slight amount of understeer, but said it was faster than his racecar, and handled just as well.

In two years, I have not lost 1 PSI of air pressure, except at the track where I dliberately lower tire pressue 6 PSI before any racing. These wheels are so lightweight, the fronts feel like the entire steering column has bee loosened up. We use titanium bolts on our carbon ceramic brakes.

CR-9 prototype undergoes impact testing simulating a severe pothole:

http://www.carbonrev.com/technology/#nav_anchor for testing results.

zeshawn

I would be interested when the Z06 is out, I just don't know if they would look good on the C7 Z06 however since frankly speaking they aren't the nicest looking wheels. When HRE had the prototype magnesium carbon wheels, now those were sexy.

Do you have any other weight saving mods planned out for the Z06? How about a full titanium exhaust, from headers to tips.

zeshawn

on a sidenote, the wheels that were on display (not on the car) in the Jay Leno video, those wheels were sick! I think they should make those in Z06 sizes.

stevebz06

Very interesting. Any idea what they will be retailing for?

oicw

Hope the answer to that is not also the answer as to why there's only been 1 set fitted to a Vette!

Halltech

$15,700, shipping included. Mounting can be included as well if picked up in Wisconsin.
















































All CR-9s come with titanium lugs: http://www.halltechsystems.com/product-p/tim12x1.5.htm
These badass titanium Ti6Al4V bolts are super lightweight.




Our battery, as found in the C7-R : http://www.halltechsystems.com/product-p/ml30c.htm
https://www.braillebattery.com/index...atteries/ml30c


These badass titanium Ti6Al4V bolts are super lightweight.

stevebz06

Maybe I'll wait for them to start showing up on Ebay.

rsalco

What happened to all the chatter by the maker about new mfg. processes to ramp up to mass production volume which implies reasonable prices? The price quoted above is one-off custom mfg. pricing. Moreover, as a side-note, the CF raw material manufacturers developed some new technology a couple years back that significantly lowered the cost of the material. Doesn't look to be reflected in the price of these wheels.

Unless one is on an F1 budget, these are another extremely limited niche bling product. They make CCB's look positively cheap. Even Leno was smirking when the video promo got around to the matter of price.

TripleBlack99

are there any downsides at all to the braille battery versus the oem battery? thanks - Mark

Halltech

Price. We actually use the GU1R 6.6lb battery most of the time which has 1/2 the cranking amps and it starts our 429 13.2:1 e85 Z06 without fail.

It cost $500+ vs $2000, so if you are looking to track your car the GU1R is a much better choice. We used the AC through all of our racing with the GU1R.

AKS Racing

While these CF wheels shown are quite costly, I can speak to the reliability of the CF wheels on a motorcycle the street. I have been running BST carbon fiber wheels on my Liter bikes on the street for many years and have not had any incidents. No cracks, no shattering, no damage from potholes, etc. And they have definitely been put through the abuse.

I know a motorcycle with CF wheels on the street is not the same as a car on CF wheels on the street, but it remains a testiment to the endurance of the CF wheel.

And, you cant beat the look and lightweight nature of the CF.

SBC_and_a_stick

Aren't the wheels functioning as a brake cooler, dissipating heat? If so, can CF wheels dissipate as much heat as Volks?

Wheel stiffness is more important than weight. Are CF wheels as rigid as a top notch forged wheel, ie Volks.

If so I'd like to see some testing results.

dvandentop

really not necessary to quote 40 pics for a reply....

will be interesting to see what ya do jim