Notices
Racing & Drivers Education Forum
Sponsored by:
Sponsored by:

I need a brake pad that is POWERFUL when cold and last about 15 minutes

Thread Tools
 
Search this Thread
 
Old 04-26-2010, 03:35 PM
  #1  
analogmike
Rennlist Member
Thread Starter
 
analogmike's Avatar
 
Join Date: Dec 2004
Location: Danbury, CT, USA
Posts: 3,912
Received 103 Likes on 43 Posts
Default 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?
Old 04-26-2010, 03:38 PM
  #2  
NaroEscape
Basic Sponsor
Rennlist
Site Sponsor

 
NaroEscape's Avatar
 
Join Date: Nov 2003
Location: Charlotte, NC
Posts: 3,788
Received 645 Likes on 326 Posts
Default

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.
__________________
Bob Saville

Getting You On Track!
www.naroescapemotorsports.com
704-395-2975
  • Data Analysis & Coaching
  • Drivers Gear
  • Crew Gear
  • Car Gear

'07 SPC
'71 914/6 Huey
'04 GT3

Old 04-26-2010, 03:41 PM
  #3  
race911
Rennlist Member
 
race911's Avatar
 
Join Date: Feb 2004
Location: Roseville, CA
Posts: 12,311
Likes: 0
Received 9 Likes on 8 Posts
Default

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.
Old 04-26-2010, 04:28 PM
  #4  
analogmike
Rennlist Member
Thread Starter
 
analogmike's Avatar
 
Join Date: Dec 2004
Location: Danbury, CT, USA
Posts: 3,912
Received 103 Likes on 43 Posts
Default

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!
Old 04-26-2010, 04:59 PM
  #5  
Scootin159
Drifting
 
Scootin159's Avatar
 
Join Date: Oct 2002
Location: Syracuse, NY
Posts: 3,089
Likes: 0
Received 2 Likes on 2 Posts
Default

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.
Old 04-26-2010, 05:08 PM
  #6  
Sean F
NASA Racer
Rennlist Member
 
Sean F's Avatar
 
Join Date: Jul 2005
Location: Westchester, NY
Posts: 4,778
Received 33 Likes on 19 Posts
Default

Originally Posted by analogmike
the current PF 97 race pads don't do anything when cold.
Really? They work great for me coming into T1 of the first lap of the LRP race with no heat.

Back in the day I used Hawk HP+ when driving my car to DE's and they were just okay.
Old 04-26-2010, 05:25 PM
  #7  
J richard
Rennlist Member
 
J richard's Avatar
 
Join Date: Jun 2001
Location: Arizona
Posts: 3,639
Received 39 Likes on 28 Posts
Default

+1 porterfields
Old 04-26-2010, 05:31 PM
  #8  
analogmike
Rennlist Member
Thread Starter
 
analogmike's Avatar
 
Join Date: Dec 2004
Location: Danbury, CT, USA
Posts: 3,912
Received 103 Likes on 43 Posts
Default

Originally Posted by Sean F
Really? They work great for me coming into T1 of the first lap of the LRP race with no heat.

Back in the day I used Hawk HP+ when driving my car to DE's and they were just okay.
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.
Old 04-26-2010, 05:51 PM
  #9  
Greg Smith
Three Wheelin'
 
Greg Smith's Avatar
 
Join Date: Sep 2005
Location: Fort Worth, TX
Posts: 1,367
Likes: 0
Received 0 Likes on 0 Posts
Default

HT-10's worked cold for me on the streets for years.
Old 04-26-2010, 07:50 PM
  #10  
333pg333
Rennlist Member
 
333pg333's Avatar
 
Join Date: Feb 2006
Location: Australia
Posts: 18,916
Received 96 Likes on 79 Posts
Default

Maybe try the 01's front. They bite bigtime straightup for me.
Old 04-26-2010, 08:32 PM
  #11  
Larry Herman
Rennlist
Basic Site Sponsor
 
Larry Herman's Avatar
 
Join Date: Jan 2004
Location: Columbus, NJ
Posts: 10,432
Likes: 0
Received 2 Likes on 2 Posts
Default

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.
__________________
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.

Old 04-26-2010, 08:39 PM
  #12  
Charles A. Toupin
Addict
Rennlist Member
 
Charles A. Toupin's Avatar
 
Join Date: Mar 2009
Location: Montreal
Posts: 2,193
Likes: 0
Received 0 Likes on 0 Posts
Default

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
Old 04-26-2010, 09:57 PM
  #13  
FTS
Burning Brakes
 
FTS's Avatar
 
Join Date: Nov 2002
Location: Maryland, USA
Posts: 901
Received 4 Likes on 1 Post
Default

Either Hawk HT-10 or DTC60/70; I prefer the HT-10s.
Old 04-26-2010, 11:26 PM
  #14  
Charles A. Toupin
Addict
Rennlist Member
 
Charles A. Toupin's Avatar
 
Join Date: Mar 2009
Location: Montreal
Posts: 2,193
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks

c.
Old 04-27-2010, 12:02 AM
  #15  
MPD47
The Carnage King
Rennlist Member
 
MPD47's Avatar
 
Join Date: Oct 2003
Posts: 7,476
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Greg Smith
HT-10's worked cold for me on the streets for years.
I've seen SEVERAL cars have the material seperate from the backing plate on cars that tried to use HT-10's on heavy track and mixed street driving.

Just a word of caution....


Quick Reply: I need a brake pad that is POWERFUL when cold and last about 15 minutes



All times are GMT -3. The time now is 01:16 PM.