Cal Club Autocross Forums

Hi Gang!

I Don't have a rule book handy and have to replace the pads and rotors on my 03 Z06.

Can I use drilled or slotted rotors in the stock class?

Thanks Steve

Steve Eguina wrote:Hi Gang!

I Don't have a rule book handy and have to replace the pads and rotors on my 03 Z06.

Can I use drilled or slotted rotors in the stock class?

Thanks Steve

No.

Cryo'ed ones?

In my book, you have to allow cryo treated parts. You can't detect in any reliable or realistic way.

If Cryo is illegal, then what about a seasoned block? What about rotors blessed by a shaman high priest?
What if Michael Palero farts into his gas tank?

These are just not areas I want to worry about policing.....


I consider the whole area of cryo a "gays in the military" situation.

Mako Koiwai wrote:Cryo'ed ones?

Since I assume freezing them prior to installing them, would still be at temp by the time you run. I would also assume deep freezing them would make them brittle. So for those like myself not enlightened, please share.

http://www.nwcryo.com/FAQs.html" onclick="window.open(this.href);return false;

Thanks for the help

Steve Ekstrand wrote:In my book, you have to allow cryo treated parts. You can't detect in any reliable or realistic way.

I think Cryo treating can be considered a manufacturing process and therefore allowed since there are no rules stating how brake rotors have to be made.

What about heat setting coil suspension springs? You can easily shorten the free length of a coil spring to lower a car. As long as you meet the factory specs on free length and ride height its undetectable.

I saw a whole thread on the NASIOC site (I think) talking about cryo treating transmission parts (which are apparently the weak link) on certain years' WRXs. Anyway, a lot of people seemed pretty vehement in arguing that cryo treating was against the rules. But I think I'm with Steve...if you can't tell a part's been cryo treated without breaking out an electron microscope or sending shavings to a lab, then how do you enforce it?

Kurt Rahn wrote:I saw a whole thread on the NASIOC site (I think) talking about cryo treating transmission parts (which are apparently the weak link) on certain years' WRXs. Anyway, a lot of people seemed pretty vehement in arguing that cryo treating was against the rules. But I think I'm with Steve...if you can't tell a part's been cryo treated without breaking out an electron microscope or sending shavings to a lab, then how do you enforce it?

It's probably technically illegal for the same reason using stronger head bolts is illegal, bu tit's also pretty much unenforceable. So.. if you were to use Cryo'd parts.. I would just not talk about it on the internet

Aaron Goldsmith wrote:

Kurt Rahn wrote:I saw a whole thread on the NASIOC site (I think) talking about cryo treating transmission parts (which are apparently the weak link) on certain years' WRXs. Anyway, a lot of people seemed pretty vehement in arguing that cryo treating was against the rules. But I think I'm with Steve...if you can't tell a part's been cryo treated without breaking out an electron microscope or sending shavings to a lab, then how do you enforce it?

It's probably technically illegal for the same reason using stronger head bolts is illegal, but it's also pretty much unenforceable. So.. if you were to use Cryo'd parts.. I would just not talk about it on the internet

Unenforceable bu tit's sound like Max's department to me