04-04-2013, 06:12 AM | #1 |
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Brakes: recommendations?
My stock brakes lasted the entire 2012 season (around eight track days), without any performance issues.
Since replacing with OEM rotors and pads, my front rotors are again failing (warped) after a single event (low speed circuit). This is both disappointing and frustrating to say the least What upgraded equipment is recommended to prolong longevity or enhance braking performance? (This vehicle is predominantly used for club and track event.) Thank in advance |
04-04-2013, 08:26 AM | #3 |
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Getting the brakes really hot should not warp them. Most likely uneven pad transfer onto the rotor. Although, overtightening/uneven tightening of the wheel bolts will warp the rotor.
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04-04-2013, 08:38 AM | #4 | |
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04-04-2013, 06:41 PM | #6 |
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04-04-2013, 06:43 PM | #7 | |
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(This year have been using race tyres, which might explain uneven tightening of wheel bolts.) |
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04-04-2013, 08:04 PM | #8 | |
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What type of pads were you using? Also, I can't say I understand how using race tires would lead to uneven tightening of the lug bolts... Neil |
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04-04-2013, 08:43 PM | #9 | |
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(Only upgrades including performance brake fluid and braided lines.) |
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04-04-2013, 09:01 PM | #10 |
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04-04-2013, 09:23 PM | #11 |
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04-04-2013, 09:23 PM | #12 |
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Putting in race pads and using them cold should clean the rotors and fix the issue.
Have a look here http://www.essexparts.com/learning-c.../swapping_pads |
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04-04-2013, 09:32 PM | #13 | |
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You are therefore able to brake harder (and stop/slow down in shorter distance) with race tires, and are generating that much more kinetic energy into heat. The additional heat from the greater braking is simply too much for the stock pads to handle. Neil Last edited by MDORPHN; 04-04-2013 at 09:46 PM.. |
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04-04-2013, 11:10 PM | #14 | |
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04-05-2013, 07:56 AM | #15 | |
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But your statement is not quite correct. The amount of heat going into the brakes is purely determined by the mass and the velocity. So, if you are slowing down from 100 to 50 and the mass is the same, you are creating the same amount of heat for the brakes to dissipate. The tires don't make a difference. Although, with good tires, you will not be slowing down as much for a corner, so there should actually be a little less heat going into the brakes. Best way to make your brakes last longer at the track is to slow down less. The faster you are in the corners, the longer your brakes will last. |
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04-05-2013, 08:10 AM | #16 | |
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Nonetheless, assuming the op is an intermediate or advanced driver, I don't know why he would have imagined that the stock pads would be sufficient -- especially if he was running race tires. Neil |
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04-07-2013, 11:22 PM | #17 |
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If your rotors continue to have accelerated wear or warping with street or race pads, have a look at the PFC Direct Drive rotors, they will run much cooler and last longer. They are also about 4.2 lighter per rotor!
http://www.1addicts.com/forums/showthread.php?t=818534 |
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04-08-2013, 07:51 AM | #18 | |
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I've only heard good things about them and will be moving to them once I'm no longer able to find lightly used take-off rotors (generally from E92 M3 owners moving to big brake kits). Neil |
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04-08-2013, 03:16 PM | #19 | |
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04-28-2013, 05:03 PM | #20 |
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I have finally fitted Pagid Yellow RS19 pads and driven perhaps 100km since, trying to brake hard from speeds of up to 120km/h. Unfortunately my vehicle (front) still vibrates and shudders. Furthermore, there appears to be much squeal when the brakes are applied gently at low speeds eg 10-20km/h.
How long does it take to remove the deposits and re-establish smooth braking? Or is this now likely to be a rotor issue? |
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04-28-2013, 06:01 PM | #21 |
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I really don't think you can warp these rotors. I would recommend cleaning the rotors with a scotch brite pad with some brake cleaner then rubbing them with some really fine sand paper in an effort to rid the rotors of the deposits. That's what I did and it improved, but the issue wasn't completely eradicated until some aggressive driving with more aggressive pads (high speed bed in process and a 2 day track day have done the trick).
Hope this helps. |
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04-28-2013, 09:32 PM | #22 | |
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http://www.stoptech.com/technical-su...l-white-papers Lot's of other good info concerning brakes here too. |
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