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The problem with Hawk is the tar-like dust (more) (archive)

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Posted by Hellred on May 15, 2001 at 16:53:30:

In Reply to: Brake Pads for Track Use Questions posted by BB on May 15, 2001 at 14:58:14:

If this is a street car, you can potentially destroy your wheels and paint with the Hawks...
The dust shoots right up into your door wells, and down the side of your car. It's a pain to remove. If I'm not mistaken The Useless Message Dude owns a full out "no holds barred" race car that is black so the dust seems minimal(gorgeous toy!). For his application the Hawks are the best.
I use the Porterfield R4 compound, that makes dust, but that washes off like stock dust.
The do squeal if the get glazed, but a few hard stops will prevent that.
You factory pads are good, but will overheat after 3 hard stops. My R4s get sharper and more responsive under those conditions.
With pad changes you'll want steel brake lines and fluid with higher boiling point, to prevent air bubbles in the lines.
G


I will be doing a track day in my M3 soon, and I'm trying to decide which brake pads to use. I once did a track day in an MR2 Turbo, starting with brand new stock pads, and after three 20-minute sessions they were worn down to the backing plates. So I learned that stock Toyota pads don't hold up to the heat of track use. Since then I've used Hawk racing pads on my road race and track cars. Usually Hawk blue compound, but sometimes black compound on one end if I wanted to change the effective brake bias. So, here are my questions:
1. How well do stock M3 pads hold up to track use? (I recently bought the car with 46K miles on it, but the pads look new. They also squeal like racing pads do.)
2. Are the combination track/street pads like the Hawk HP+ really good for both street and track and autox, or are they too much of a compromise to do anything really well? (I don't mind swapping brake pads for track days if I'll get significantly better performance from them.)
3. I suppose I should get a spare set of rotors, too, right? Where can I get a good price on them? (I have cracked rotors on RX7s and Miatas that I raced, and don't want to get stuck without spares.)
4. Anyone ever cracked an M3 rotor from track use?

BTW, the track will be Summit Point, which is pretty tough on brakes.





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