GM Media Blasting Z28 Wheels

[Flyn]

When is grip, too much grip? When the tires start spinning on the wheels under hard braking.

It's well known that the Chevy Camaro Z/28 has the widest front tires of any production car. At 305 mm wide, those tires produce tremendous grip--especially since they're Pirelli P Zero Trofeo Rs. In fact, they make so much grip, the Z/28 was spinning the tire around the wheel under braking--the Z/28 was, in effect, outrunning its tires, or at least their ability to grip the wheels...

...Typically, Chevy says the tire-wheel slippage issue is solved through the use of an abrasive paint along the bead of the wheel, where the tire seats. The Z/28 team tried this, and found it wasn't enough to prevent the problem.

So they took it to the next level, using a racing solution: they media-blasted the rim of each wheel. That finally produced enough friction to keep the Z/28 from spinning the rubber around the metal.

Like the Flowtie, and the Flying Car Mode, this is just another small but significant piece of engineering that makes us appreciate the Z/28 that much more.

Yahoo!

Click to read more...

 

[rz79]

R




(By 1 min)


:Sools:

 

[wolfe]

bead locks son

 

[Mike K]

The first gen V10 TDI touareg had this problem but it was from the obnoxious amounts of torque.

 

[Ear Rak]

:bsflag:

If Marc Sorger can run an s197 with custom susp, a nascar 358, race brakes and run off the shelf forgestar rims with 315 race slicks all the way around with no problems...then chevy needs to kill themselves.

Clearly the rim bead design doesnt grip the tire enough. Has nothing to do with power/abiity/braking.

 

[Chester Copperpot]

Or maybe you should lighten this fat obscene pig.

 

[SinisterSHO]

This happened to a friend with his SHO running team dynamic wheels and Hoosier r6 tires.

 

[Pressure Ratio]

Like I said in the other thread, many wheels come with a groove or cross hash in the tire bead mounting area. GM just getting around to figuring this out. lol

 

[Lead Pipe]

Or maybe you should lighten this fat obscene pig.