Billy Johnson posted this on the Shelby GT350 Owners page
PUBLIC SERVICE ANNOUNCEMENT:
Attn GT350R owners - Your Carbon Wheels are stronger than you think.
I just got back from the track today and it saddens me to see so many GT350R owners shelve their carbon fiber wheels mostly due to a lack of knowledge. While carbon fiber wheels are revolutionary and a game-changer for the auto industry, the GT350R is the first mass-produced car to adopt this technology, and thus, there is very little known about them.
Carbon wheels are stronger than aluminum, and SIGNIFICANTLY stronger than most lightweight aftermarket wheels you may be interested in replacing them with . The Carbon Revolution-built wheels on your car meet or exceed all OEM standards for resisting impact damage from pot holes, which most aftermarket (even very high end) lightweight wheels would fail.
The barrel construction, spokes, and rim lip resists damage to the point where if you do cause structural damage to the wheel, you might be needing a new subframe and/or chassis. Carbon fiber is used in the safest and strongest monocoque chassis in motorsports, boats, planes, and supercars out there. You're not going to 'shatter' a carbon fiber wheel.
In the thousands of miles of development driving of the GT350R and Ford GT, including launching cars off curbs, dropping tires off the track, and going off track, I can't say that i've ever seen one of the carbon fiber wheels damaged.
The Carbon Fiber wheels are an inherent part of the GT350R which makes it special. It does wonders for IMPROVING STEERING FEEL, IMPROVED RIDE QUALITY, CONSISTENCY, GRIP, and LAP TIMES. Depending on the track, the carbon wheels can be worth OVER A SECOND of lap time. You also don't need to run as much static camber with carbon wheels as you do with aluminum wheels. Ever wonder why Ford recommends such little (-1.75*) front camber for track use? It's not because it's a conservative setting, it's because of the carbon wheels.
Stay tuned for an upcoming article that i'm writing that dives deep into the technology of Carbon Fiber wheels and elaborates on all of these points and more.
Now I know some people can be very particular with their cars to the point one single rock chip will make a grown man cry. I totally understand. However the most likely form of damage is from curbing a wheel when parallel parking the car. Any damage from this kind of curb impact will 99.9% be cosmetic only and will not affect the performance, safety, or structure of the wheel. Also there are some companies that are repairing these carbon wheels to look and perform just as good as new, for less than $1K. A far better pill to swallow compared to buying a new wheel.
So understand your wheels can be repaired for a reasonable price, and that the benefits of carbon wheels are far greater than just being lightweight and reducing unsprung weight. The carbon wheels are just as special as the FPC 5.2L Voodoo engine. Not driving on the carbon wheels is like swapping the Voodoo out for a 5.0L Coyote. Where do you draw the line for it to be pointless for having such an amazing car if you don't enjoy the key aspects that make it special?
So I urge you GT350R owners. Put your carbon wheels back on and be one of the special and rare few people to enjoy the benefits of this technology as early adopters. Pretty soon more and more cars will have carbon wheels (not just track-focused cars). TRUST IN THE CARBON.
That is all.
-Billy (GT350/R & Ford GT racing and development driver)