I need a brake pad that is POWERFUL when cold and last about 15 minutes
#1
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I need a brake pad that is POWERFUL when cold and last about 15 minutes
For the Robin Hood Rally I need a set of brake pads that will work cold, and last about 15 minutes of abuse. My '73 911 has no power brakes, so the pedal pressure is VERY HIGH and the current PF 97 race pads don't do anything when cold.
I am thinking that a dual-purpose pad like Hawk HP PLus or other street/autocross/track day pads might work. But I don't want to lose brakes near the end of a run...
Any good suggestions?
I am thinking that a dual-purpose pad like Hawk HP PLus or other street/autocross/track day pads might work. But I don't want to lose brakes near the end of a run...
Any good suggestions?
#2
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Honestly, i use Hawk Blue and have brake feel immediately after I put them on cold, with no fade ever.
Mind you, my car only weighs 1850 lbs and I use 993 calipers, but still, I like them.
Mind you, my car only weighs 1850 lbs and I use 993 calipers, but still, I like them.
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#3
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Standard S calipers? Been many, many years now, but I was using the Porterfields on my torsion bar cars back in the '90's and they worked great for both autocross and track on ~2500lb cars. Probably many variations on their original compound now.
#4
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HI,
I was told to try the Hawk Blue but I tested them on the track for a few races and they were TERRIBLE and very weak after running on the PF pads for years. I do have the S calipers in front and new normal rear calipers.
thanks!
I was told to try the Hawk Blue but I tested them on the track for a few races and they were TERRIBLE and very weak after running on the PF pads for years. I do have the S calipers in front and new normal rear calipers.
thanks!
#5
Drifting
I've run the Hawk HP+'s for a few years, and they work as well cold as they do hot, so that wouldn't be a concern. As for the longevity - I've never raced w/ them, but I have done quite a few HPDE's and never had any fade issues, with one exception:
At the Glen last year I was curious as to if I was leaving any braking on the table, so I made it a point to focus on my braking alone for a few laps, and it only took about three laps of that to bring up fade issues. Of course it took almost 10 minutes of track time, over-braking every corner, to really make it noticeable. After that I bled the brakes and went back to "normal driving", except with slightly more aggressive braking zones (as learned in my experiment), and never had the issue again.
There's a lot of other variables, but I'd say in my 2800#/150hp car with r-comps and proper suspension I'd have no worries of making it through a 15-minute race with them. They even make it through our "enduro autocross" (imagine 10 minutes of 10-second straights followed by hairpin turns - it's a high braking layout) without any fade.
At the Glen last year I was curious as to if I was leaving any braking on the table, so I made it a point to focus on my braking alone for a few laps, and it only took about three laps of that to bring up fade issues. Of course it took almost 10 minutes of track time, over-braking every corner, to really make it noticeable. After that I bled the brakes and went back to "normal driving", except with slightly more aggressive braking zones (as learned in my experiment), and never had the issue again.
There's a lot of other variables, but I'd say in my 2800#/150hp car with r-comps and proper suspension I'd have no worries of making it through a 15-minute race with them. They even make it through our "enduro autocross" (imagine 10 minutes of 10-second straights followed by hairpin turns - it's a high braking layout) without any fade.
#6
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#8
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I think the 97s may not be too bad now that I have new rear calipers. I needed to bleed them after the 1st track session with new calipers but then my fuel pump died so I did not get to test them after the 1st session. Maybe I can try the new 01 PF as they are said to be even better, but not sure about the cold braking.
#10
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Maybe try the 01's front. They bite bigtime straightup for me.
#11
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I second the HT-10s. We use them in our Subie & my son drives on them every day. They even work ok when it's 20 degrees out.
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Larry Herman
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Larry Herman
2016 Ford Transit Connect Titanium LWB
2018 Tesla Model 3 - Electricity can be fun!
Retired Club Racer & National PCA Instructor
Past Flames:
1994 RS America Club Racer
2004 GT3 Track Car
1984 911 Carrera Club Racer
1974 914/4 2.0 Track Car
CLICK HERE to see some of my ancient racing videos.
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I'm looking to change my pads too. I run the Hawk Blue on my 86' 951, with stock calipers.
I really like that pad, but they eat rotors when it's cold outside. Now I have Big Black at the front and a brake proportionning valve. I would like to have a pad that would be softer on the rotors but still have the same braking power.
Any recommendation?
Thanks
Charles
I really like that pad, but they eat rotors when it's cold outside. Now I have Big Black at the front and a brake proportionning valve. I would like to have a pad that would be softer on the rotors but still have the same braking power.
Any recommendation?
Thanks
Charles
#15