Brake scoring (grooves)
07-20-2006, 10:43 AM
#16
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Join Date: Aug 2005
Location: Mooresville, NC
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Just a quick comment on frozen rotors….
I have done extensive testing of cryo treated discs and brake components. This testing involved controlled brake dynamometer testing in our facility.
Long story short-
-If you exceed 800 degreed F (even once) then all cryo treatment effects are negated. (As if there was no treatment at all) So if you race or drive hard….forget it!
-Cryo seems to have the largest benefit for fleet applications where brake temps are low.
-Cryo of friction material is a waste of time.
I have done extensive testing of cryo treated discs and brake components. This testing involved controlled brake dynamometer testing in our facility.
Long story short-
-If you exceed 800 degreed F (even once) then all cryo treatment effects are negated. (As if there was no treatment at all) So if you race or drive hard….forget it!
-Cryo seems to have the largest benefit for fleet applications where brake temps are low.
-Cryo of friction material is a waste of time.
07-20-2006, 10:55 AM
#17
Thank you Tim! That is exactly the sort of precise and diligent
testing that separates the science from the hype-artists.
Everyone who has ever considered frozen rotors should look
into Tim's services to see if they are an appropriate way to
invest some of the money he just saved you.
Joe
testing that separates the science from the hype-artists.
Everyone who has ever considered frozen rotors should look
into Tim's services to see if they are an appropriate way to
invest some of the money he just saved you.
Joe
07-20-2006, 05:04 PM
#18
Racer
Join Date: Jun 2001
Location: Tampa, Florida
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Originally Posted by Tim@BHP
Just a quick comment on frozen rotors….
I have done extensive testing of cryo treated discs and brake components. This testing involved controlled brake dynamometer testing in our facility.
Long story short-
-If you exceed 800 degreed F (even once) then all cryo treatment effects are negated. (As if there was no treatment at all) So if you race or drive hard….forget it!
-Cryo seems to have the largest benefit for fleet applications where brake temps are low.
-Cryo of friction material is a waste of time.
I have done extensive testing of cryo treated discs and brake components. This testing involved controlled brake dynamometer testing in our facility.
Long story short-
-If you exceed 800 degreed F (even once) then all cryo treatment effects are negated. (As if there was no treatment at all) So if you race or drive hard….forget it!
-Cryo seems to have the largest benefit for fleet applications where brake temps are low.
-Cryo of friction material is a waste of time.
07-20-2006, 05:11 PM
#19
Nordschleife Master
A testimonial... I just sent Tim an email asking a question about possible brake upgrades (oh gawd... please don't ask me why), and he responded promptly with some great information. I hope he & I can do some biz.
07-20-2006, 07:26 PM
#21
I think cooling should be the focus. The stock brakes are powerful enough
to trigger ABS at 100mph speeds. The only problem is heat build-up,
heat-stressing rotors and boiling fluid. If you can find a way to duct more
cold air, starting with the GT3 deflectors, and maybe going beyond with
some custom ducting, you will probably get your best solution for the
track. Even if yo do spend thousands on different brake components,
they will all last longer and work better if you get all the cold air to them
that you can.
Joe
to trigger ABS at 100mph speeds. The only problem is heat build-up,
heat-stressing rotors and boiling fluid. If you can find a way to duct more
cold air, starting with the GT3 deflectors, and maybe going beyond with
some custom ducting, you will probably get your best solution for the
track. Even if yo do spend thousands on different brake components,
they will all last longer and work better if you get all the cold air to them
that you can.
Joe
07-22-2006, 02:06 AM
#22
Rennlist Member
Agree Joe, since going with the pagids, castrol SRF, and the GT3 cup ducts have not had any brake problems even over two day events. Thanks for the good info.
