Dorkiphus.net

Dorkiphus.net (https://dorkiphus.net/porsche/index.php)
-   Porsche Technical Discussions (https://dorkiphus.net/porsche/forumdisplay.php?f=41)
-   -   Good Track Brake Pads Which Don't Squeal Too Much? (https://dorkiphus.net/porsche/showthread.php?t=28168)

Chopper Dropper 07-31-2012 08:58 AM

Most on this Dorki Board could have swapped your street/sport pads for race pads and back to street before reading through all this, a bit of abrasion on each rotor whilts you are changing should keep any build up down and only take a second!!!
Dirk

N Fotouhi 07-31-2012 09:00 AM

Warning: I do not know what I do not Know, so I am referencing Pagid below. It is irrelevant information, but given the history that any thread that goes past page 2 on Dorki has taken a left turn, I feel that I must make useless contribution to a now useless thread which now generates as much interest as another murder story in Philadelphia, except to the OP.

"PAGID racing brake pads are developed for high performance events. Motorsport is dangerous. PAGID racing brake pads are sold without warranty expressed or implied. No warrant or representation is made as to this product’s ability to protect the user from injury or death. The user assumes that risk"

I do not know if the information is relevent to this thread or another since I know I did not read any of posts in this thread, but I digress.

smdubovsky 07-31-2012 09:01 AM

Quote:

Originally Posted by Irfan (Post 407143)
One more graph for Hawk pads:

http://www.e30tech.com/forum/showthread.php?t=113813

Friction when cold really drops off :shock:, so looks like these would be a poor choice for street use.

That graph is BS. The axes are screwed up or something. DTC60s work fine even at (sub)freezing temperatures. Maybe its the ablative or abrasive coefficient but not the combination for sure.

As has been suggested, I think you would fit in well on 6speed:roll:

CanAm 07-31-2012 09:11 AM

Quote:

Originally Posted by smdubovsky (Post 407151)
That graph is BS. The axes are screwed up or something. DTC60s work fine even at (sub)freezing temperatures. Maybe its the ablative or abrasive coefficient but not the combination for sure.

No offense, but I think the graph carries more weight than a single anecdotal report. You claim the graph is BS, but aren't showing why. 'Work fine' is pretty vague.

HoodPin 07-31-2012 09:21 AM

Quote:

Originally Posted by Irfan (Post 407155)
No offense, but I think the graph carries more weight than a single anecdotal report. You claim the graph is BS, but aren't showing why. 'Work fine' is pretty vague.

I sorta agree with Stephen about the lower end of the graph. The "cold" performance doesn't make total sense. A number of the pads shown appear to be almost "inopperative" at low temps, but I know that's not the case. As Stephen mentions, the axis appears to be somehow warped; even one of the comments on the board thread mentions it.

smdubovsky 07-31-2012 09:26 AM

Quote:

Originally Posted by Irfan (Post 407155)
You claim the graph is BS, but aren't showing why.

I don't have to show why. The graph shows why (quite GLARINGLY if you understand the axes labels). If you don't get it, you don't get it.

Lupin..the..3rd 07-31-2012 09:28 AM

Quote:

Originally Posted by Irfan (Post 407155)
No offense, but I think the graph carries more weight than a single anecdotal report. You claim the graph is BS, but aren't showing why. 'Work fine' is pretty vague.

According to the graph, they don't work at all below 120 F. I've driven the DTC-60's on the street in the winter time, in DC traffic, and didn't have any trouble. They worked fine. Did they feel exactly the same as street pads? No. But I pushed the pedal and the car slowed down, and it was responsive enough to be comfortable in urban traffic.

"Work fine" is indeed subjective. Suggest you buy a few different sets of pads. Try them for yourself and form your own conclusions.

CanAm 07-31-2012 09:37 AM

Quote:

Originally Posted by Lupin..the..3rd (Post 407161)
According to the graph, they don't work at all below 120 F. I've driven the DTC-60's on the street in the winter time, in DC traffic, and didn't have any trouble. They worked fine. Did they feel exactly the same as street pads? No. But I pushed the pedal and the car slowed down, and it was responsive enough to be comfortable in urban traffic.

"Work fine" is indeed subjective. Suggest you buy a few different sets of pads. Try them for yourself and form your own conclusions.

OK, I see what you guys are saying about the lower end of the graph. I myself have driven the HT-10s on the street and there's no way the friction coefficient dropped to zero at cold temps. I don't know where the graph is wrong, but I'm willing to tentatively assume that the Hawks have a significant drop in friction at low and high temps (ie, correct shape of the curves). And we've read reports in this thread about some track pads having very little friction at cold temps. By comparison, the friction curves for the Pagids are much flatter, at least over the temp range shown. I'd like to get my hands on the friction curves for PF.

roundel 07-31-2012 10:35 AM

Have you considered getting different pads for the street and for the track? O_o

CanAm 07-31-2012 10:44 AM

Quote:

Originally Posted by roundel (Post 407170)
Have you considered getting different pads for the street and for the track? O_o

Given that some track pads are adequate for street use, and that I don't like the stock pads in the 997 for street use anyway, using 'mild' track pads full-time in the 997 is the direction I'm currently leaning. Not currently interested in spending ~2 hours swapping pads for one track day, and I can live with some squealing on the street. Others may have different priorities.


All times are GMT -4. The time now is 03:40 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2026, vBulletin Solutions, Inc.