Rotating mass
Thread Starter
Race Director
Joined: Mar 2005
Posts: 11,549
Likes: 27
From: Southampton NJ
Dennis, I run c-5 drilled and slotted rotors saves a pound or so each wheel. Then I got rid of the heavy runflats. I changed to PS'2. So each front Ps'2 saved 5 lbs each rear 7 pounds.
The tire is the because it's the biggest rotating weight on the car. About 30 pounds total.The weight reduction is big in two ways, one the shock has less to control, so handling and straight line performance.
The tire is the because it's the biggest rotating weight on the car. About 30 pounds total.The weight reduction is big in two ways, one the shock has less to control, so handling and straight line performance.
maybe i will hit the lottery,but i dont play it
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
If at all possible stay away from Drill, milled or cast in holes in rotors. No matter how thick the rotor side is, they will crack much sooner then latter.
Drilled and Slotted rotors are almost 50 year old technolgy that is no longer needed.
The original point to drilled rotors was to "out gass" from asbestosis brake pads in the 60s. Since asbestosis has not been used since the early 70s there is NO need for holes in rotors.
Do holes reduce wt? some what but also reduce brake surface by more then reduce wt. Plus drilled rotors increase the likelyhood stress starting points.
Why are Drilled rotors so popular? consumers want them, and that is the only reason so many manufactures have them. Marketing.
and the best, C6Z06 rotors with one hard 20 min race on
Brake rotors are consumable items. All will crack. Many sooner then latter. Dont spend BIG $$$ on brake rotors.
If your concerned about rotating mass, just put on the stock OEM C5 / C6 brake rotor. The Stock C6 caliper mounting braket and decent brake pads. You will stop much faster then most BBKs. the rotoing mass will be MUCH lighter, and your wallet will not be drained with usless stuff
Stick with the STOCK rotors and add brake cooling ducts, racing brake pads and DOT 4 brake fluid.
here is my set up
and I stop shorter, harder and have much better control then many BBKs. Yes I also use a 12" front tires for track days on a road race circuit.
Would I ever use a BBK. YES when the time is right. So far it hasn't been
Drilled and Slotted rotors are almost 50 year old technolgy that is no longer needed.
The original point to drilled rotors was to "out gass" from asbestosis brake pads in the 60s. Since asbestosis has not been used since the early 70s there is NO need for holes in rotors.
Do holes reduce wt? some what but also reduce brake surface by more then reduce wt. Plus drilled rotors increase the likelyhood stress starting points.
Why are Drilled rotors so popular? consumers want them, and that is the only reason so many manufactures have them. Marketing.
and the best, C6Z06 rotors with one hard 20 min race on
Brake rotors are consumable items. All will crack. Many sooner then latter. Dont spend BIG $$$ on brake rotors.
If your concerned about rotating mass, just put on the stock OEM C5 / C6 brake rotor. The Stock C6 caliper mounting braket and decent brake pads. You will stop much faster then most BBKs. the rotoing mass will be MUCH lighter, and your wallet will not be drained with usless stuff
Stick with the STOCK rotors and add brake cooling ducts, racing brake pads and DOT 4 brake fluid.
here is my set up
and I stop shorter, harder and have much better control then many BBKs. Yes I also use a 12" front tires for track days on a road race circuit.
Would I ever use a BBK. YES when the time is right. So far it hasn't been
Last edited by AU N EGL; Aug 30, 2008 at 08:29 AM.
Team Owner
Joined: Feb 2001
Posts: 27,236
Likes: 121
From: Short Hills, NJ
If at all possible stay away from Drill, milled or cast in holes in rotors. No matter how thick the rotor side is, they will crack much sooner then latter.
Drilled and Slotted rotors are almost 50 year old technolgy that is no longer needed.
The original point to drilled rotors was to "out gass" from asbestosis brake pads in the 60s. Since asbestosis has not been used since the early 70s there is NO need for holes in rotors.
Do holes reduce wt? some what but also reduce brake surface by more then reduce wt. Plus drilled rotors increase the likelyhood stress starting points.
Why are Drilled rotors so popular? consumers want them, and that is the only reason so many manufactures have them. Marketing.
Drilled and Slotted rotors are almost 50 year old technolgy that is no longer needed.
The original point to drilled rotors was to "out gass" from asbestosis brake pads in the 60s. Since asbestosis has not been used since the early 70s there is NO need for holes in rotors.
Do holes reduce wt? some what but also reduce brake surface by more then reduce wt. Plus drilled rotors increase the likelyhood stress starting points.
Why are Drilled rotors so popular? consumers want them, and that is the only reason so many manufactures have them. Marketing.
100%...I tell people that all of the time.
(except for a couple of toolbags)
Safety Car
Joined: Sep 2007
Posts: 4,451
Likes: 2
From: DFW Texas
stock rotors suck ***. one sides aero vanel face forward, other side backwards, so you have a difference in temp on one side of the car, not good. also the stupid holes just get plugged up with brake dust, which makes them completely useless. after a 20 min track session i just have gray dots on the rotors lol
