Brake Pads Question
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Joined: Jun 2003
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From: New Bern, NC
You are still going to over-heat... it sounds like the issue is not being able to take heat away from the rotors fast enough. I have the same issue, XP10's with high temp fluid and still only last 5 or 6 full speed laps before I start feeling enough give that I call it quits. My problem is my fluid boiling, the pads are phenominal and will bite hard as long as there is enough force behind the pistons. I know I need brake ducts but I also want to sell my car eventually so I won't be cutting through crap to get the ducts from point A to point B. You will have to run some ducts or maybe come up with an air dam directing more air into your rotor/caliper (similar to what they use on the ZR1 Corvette).
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Joined: Jun 2003
Posts: 3,604
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From: New Bern, NC
Have you got any video of your laps? I guess maybe there's a personal threshold here of how bad it gets before you pull in the pits (maybe you could get more laps but just don't want to risk it... which if that's the case, I absolutely applaud you for.)
I mentioned earlier that the track makes a difference (why I asked what tracks)... the second two you mentioned, based on videos I found, appear to be small (almost kart/autocross) sized tracks, with a couple straights long enough with a hard enough braking zone to heat up the brakes... but the rest of those two circuits while low speed (relative to Mosport GP), are still busy and don't afford much time for the brakes to cool between brake zones.
Mosport GP on the other hand, is a very fast track, with only two sections that should be really hard braking zones. The rest of the track should be cooling the brakes off.
In general, its not the long fast tracks with long straights and hard braking zones that are hard on brakes... its the short, busy tracks with multiple brake zones without enough open track between them to cool the brakes that are the problem.
I still think you should get more than 5 or 6 laps though... you really should be able to run 15 to 20 minutes on those short tracks easy... 25-30 on Mosport GP.
I mentioned earlier that the track makes a difference (why I asked what tracks)... the second two you mentioned, based on videos I found, appear to be small (almost kart/autocross) sized tracks, with a couple straights long enough with a hard enough braking zone to heat up the brakes... but the rest of those two circuits while low speed (relative to Mosport GP), are still busy and don't afford much time for the brakes to cool between brake zones.
Mosport GP on the other hand, is a very fast track, with only two sections that should be really hard braking zones. The rest of the track should be cooling the brakes off.
In general, its not the long fast tracks with long straights and hard braking zones that are hard on brakes... its the short, busy tracks with multiple brake zones without enough open track between them to cool the brakes that are the problem.
I still think you should get more than 5 or 6 laps though... you really should be able to run 15 to 20 minutes on those short tracks easy... 25-30 on Mosport GP.
Last edited by Stack; Oct 1, 2010 at 05:27 AM.
Any update? When is your next event?
No matter what pad you end up with, it is IMPERATIVE that you completely flush and replace your fluid with a high temp fluid...
ATE Super Blue
ATE 200 (same as Super Blue but not blue... won't stain reservoirs... also when alternated with Blue, makes it easy to know when a good flush has been completed)
AP Racing 550 (my preference)
Motul RBF 600 (660 now?)
As has already been mentioned... ducting (or lack therof) and technique will play a large role as well (also track layout and session times of course.)
Are there other tracks that you're willing to travel to? I'd be curious to know how your set up would work in cooler temps at a track with plenty of long runs for your brakes to cool off... hmm... say... I just so happen to be hosting an event at Virginia Int'l Raceway November 28th & 29th!! That would be perfect!! http://msreg.us/Trypto
No matter what pad you end up with, it is IMPERATIVE that you completely flush and replace your fluid with a high temp fluid...
ATE Super Blue
ATE 200 (same as Super Blue but not blue... won't stain reservoirs... also when alternated with Blue, makes it easy to know when a good flush has been completed)
AP Racing 550 (my preference)
Motul RBF 600 (660 now?)
As has already been mentioned... ducting (or lack therof) and technique will play a large role as well (also track layout and session times of course.)
Are there other tracks that you're willing to travel to? I'd be curious to know how your set up would work in cooler temps at a track with plenty of long runs for your brakes to cool off... hmm... say... I just so happen to be hosting an event at Virginia Int'l Raceway November 28th & 29th!! That would be perfect!! http://msreg.us/Trypto
I'll update with how it goes, from the general consensus here it seems like anything would be better than those Hawks.
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