Boxster S brakes?
Because I burnt down a set of brake on my last track day I wanted to install front Boxster S brakes on the car. Installations was easy not any worse than replacing brakes, but here is the question. The car came with Boxster S II 17 " wheels. Which are my daily driving wheels there is 5/16" clearance on the spokes should I add spacesr or let them alone.
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I have stock brakes on my 2.7 and they work fine on the track with the cheapest Mintex pads. Very good braking, no fade with a good brake fluid flush before the event and GT3 air scoops to cool the brakes. I go through about 1/3 Of the pad in an event. If you are burning up pads, go to a race pad.
S brakes are not going to make any difference. |
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S brakes will work fine with stock 17" rims as long as the wheels are straight. Get some track-capable pads in there so you don't burn down the "S" brakes next.
Hawk Blue-good Pagid Orange- better Raybestos ST-43- best |
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Wow! Maybe a sticking caliper. My brother had problems with crud in the front calipers that were not fully releasing and after several flushes they seem to improve. I typically get 20 track days (2000 track miles) on the ST-43s in front, 40 or more days on the rear. I have used RS-14s and RS-29s but get a lot more life out of the 43s with better modulation.
We do have a couple of hills out here as well. :) http://images.motorcycle-usa.com/pho...ogp-laguna.jpg |
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[QUOTE=Topless;324511]Wow! Maybe a sticking caliper. My brother had problems with crud in the front calipers that were not fully releasing and after several flushes they seem to improve. I typically get 20 track days (2000 track miles) on the ST-43s in front, 40 or more days on the rear. I have used RS-14s and RS-29s but get a lot more life out of the 43s with better modulation.
We do have a couple of hills out here as well. :) +1, you really shouldn't be burning the pads as quickly as you say.:confused: |
I have been using EBC Yellows for my past three brake changes and get about 12-14 track days out of a set. I would say that I am average on the brakes (not particularly hard on them nor particularly easy on them) so you should be seeing somewhat similar wear/life.
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Here is a picture of the pads I put on that same day, at Summit Point for the second run session. I looked at the schedule again. These are EBC Yellow Stuff pads run for 1 hour and 20 minutes between 137 and 40 MPH based on my Track mate recorder. I drove home I think that 96 miles. Total miles 241
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Out of curiosity, not having done any track days, how hard do you push the car? 9/10th's, 10/10th's? Are you threshold braking all the time, or not quite pushing that hard?
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Second session @9/10-10/10's (late in the 2nd session is usually my best time of the day, could just as well go home afterward (based on time alone) but its too much fun!) Thrid session @ 10/10's (the other session to set a best time of the day) Fouth session @ 9/10-10/10's (usually working on improving a certain corner and not going for best overall times so I'm hard in some places and slightly easier in others) Fifth session @ home on the couch. I'm exhausted! My goal is to brake just under the point where the ABS kicks in. |
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Regarding the pads pictured, did you bed them before tracking? Unless they're crumbling, I don't see any big issue. Maybe my laptop screen lacks resolution? |
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Yes, they look a bit "cooked" but that is normal and my pads look exactly the same with the yellow almost completely burned off and they honestly look like they've been baking in a oven! (which I suppose is about what is happening). Am I missing something like the pad material itself is disintegrating or deteriorating or crumbling? Could it be that they may have been simply overheated and lost friction until they cooled down? |
I guess I wanted an opinion about how these compared to what some of the other DE regulars see after a single day. This is not the set that went bad. That set was cut down into the holes and all cracked. They looked like alligator skin. I don't get more than 3 weekend out of a set. By that point they are with in a 1/16" of the holes.
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