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+--- Thread: Replacement Brake Rotors (/showthread.php?tid=1840)
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- bobt993 - 10-14-2009
Or buy brakes and rotors the size of Long Island like Darren did.............. His brakes are so big you only need to look at the pedal to slow down.
- ninjabones - 10-14-2009
Bob and Darren, how would you interpret this rule?
[size=2]
B. Brake calipers and rotors must be as supplied by the factory for the year and type of vehicle.
C. Grooving/slotting/cross drilling of rotors is allowed.Would you take this to mean that the dimensions of the rotor must remain the same, but that perhaps aftermarket rotors would be allowed? Would fabrication of custom hats to accomodate aftermarket options (such as solid or slotted rotors) violate this rule? Maybe this is a question best answered by Donna Amico. And maybe it's not even worth asking as the cost of custom hats and custom rotors would likely not be offset by the added longevity. I do remember a guy at VIR last year with a 993 that had some form of solid rotor setup on NB calipers. Don't recall where he sourced them though.
[/size]
- JoeP - 10-14-2009
Well, I'm half way there. I added brake air scoops large enough that I was getting a "tick, tick, tick" in turns as they contacted my wheel weights. A little trimming was in order.
- Darren - 10-14-2009
ninjabones wrote:
Quote:Bob and Darren, how would you interpret this rule?First, don't ask. Second, as long as it's functionally the same, same diameter, same thickness, then it should be the same performance characteristic. If the only difference is that it lasts longer then they shouldn't force you to waste money
- LouZ - 10-14-2009
Here is a supplier that I use that matched the OEM rotor for dimensions, slots them and Cryogenically treats them (Cryo added about $30/ rotor!)
Power Slot Cryo by Frozen Rotors
![[Image: frozen_rotors_logo.jpg]](http://www.brakewarehouse.com/images/frozen_rotors_logo.jpg){kind=logo}
When you need something tougher than a Power Slot rotor, but you’re not quite ready for a big brake kit, try Power Slot’s new Power Slot Cryo brake rotors. They’ve teamed up with Frozen Rotors to offer cryogenic treatment on their entire Power Slot rotor line.
Deep cryogenic treatment is a one-time process that permanently improves the performance and service life of metals from brake rotors and engine parts, to machine tools and gear sets. Using a proprietary computer-controlled process, the metal is cooled gradually to -300°F and then slowly returned to room temperature and heat-cycled as the final step.
![[Image: power_slot_cryo_frozen_rotors2.jpg]](http://www.brakewarehouse.com/images/power_slot_cryo_frozen_rotors2.jpg)
Although not apparent to the naked eye, the improvements to the cryogenically-treated rotor are significant. The cryogenic treatment process increases tensile strength at higher temperatures giving the rotor an extra level of protection against warping.
Any new Power Slot slotted brake rotor can be cryogenically treated prior to shipment. Allow 5-10 business days for processing.
![[Image: cryo_brake_rotor_wear_comparison.jpg]](http://www.brakewarehouse.com/images/cryo_brake_rotor_wear_comparison.jpg)
![[Image: cryo_brake_pad_wear_comparison.jpg]](http://www.brakewarehouse.com/images/cryo_brake_pad_wear_comparison.jpg)
Click here to return to Power Slot product information..
- Darren - 10-14-2009
I like the power slots...I'm not sure I believe the Cryo marketing....
- ninjabones - 10-14-2009
So Darren, are we going to get a glimpse of the new uber-996 this weekend?
- Darren - 10-14-2009
She'll be there...I don't know whether the brake bias issue I was having is fixed yet. I don't think I'll be driving very fast...
- bobt993 - 10-15-2009
Yes, you move to GT.
But................. a lot of veteran drivers have modified their brakes and it seems to go overlooked. Glen as I said before the rules in PCA stock class are archaic and confusing. Too many rules, way to much thought put in to the classifications and results show it. NASA GTS finishes are typically one to two seconds apart even less.
- bobt993 - 10-15-2009
Darren wrote:
Quote:She'll be there...I don't know whether the brake bias issue I was having is fixed yet. I don't think I'll be driving very fast...
Brake issues.................. Darren stay half a lap away from me okay???