The temperature ranges and friction numbers come from the manufactures of the pads. We can not be certain the information is accurate, this is for reference only.
Pad, Temp. Range, Friction Coefficient, Notes
Hawk
HPS Street pad
HP+ AutoX, aggressive street pad, some noise and dust
DTC-30 100-1200 .5 Great autoX, track day, non-corrosive, very strong cold bite, dusty and noisy for the street.
DTC-60 400-1600 .5 Track only, great bite, non-corrosive
DTC-70 400-1600 .6 Track only, like DTC-60 with more bite
Black 100-900
Blue 250-1000 Race use only, medium/high torque, has been very popular
HT10 300-1600
Wilwood
BP-10 100-1000 .42-.46 Flat torque curve, wide temperature range for street pad, quieter than the Q pad.
BP-20 100-1100 .37-.54 Medium track pad.
BP-30 100-1300 .53-.62 Track only.
BP-40 Track only.
Q 100-800 .38-.47 Good street pad. Low dust and noise.
E 0-1000 .4-.48 More aggressive street pad or light track. Harder on rotors than Q.
H (ST43) 100-1300 .54-.66 Race/track only. Very flat torque curve. high friction.
A (ST41) 200-1300 .55-.70 Race/track only. Higher max bite not as flat of a torque curve as H.
Ferodo
DS2500 70-930 .42-.50 Good autoX, street, light track. Some dust, fairly quite.
DS3000 300-1200 .4-.52 Track only.Raising torque.
DS3000+ 0.59 Track only.
DS3000 Enduro 0.5 Track only. Longer lasting and less torque than DS3000
DSUNO 300-1300 .45-.51 Easy on rotors. Replaced DS2-11.
DS1-11 46-.48 Track only. Very flat torque curve, easy on rotors. Ceramic.
Carbotech
Bob Cat 1521 40-900 .45 Good performance street pad.
AX6 150-1250 .45-.56 AutoX, light track day, noisy for the street.
XP8 1108 250-1350 .58-.6 Race use only. Easy on rotors & paint does not mix well with other pads.
XP10 1110 250-1400 .6 Race use only. Easy on rotors & paint does. not mix well with other pads.
XP12 Race use only, Easy on rotors & paint, most bite. does not mix well with other pads.
Cobalt Friction
GT-Sport 75-950 .48 Street, autoX, performance pad. Some dust and noise.
Spec-C 150-900 .52
Spec-B 200-1100 .58 Race use only.
Spec-VR 350-1550 .64 Race use only.
XR1 100-1600
XR2 100-1600
XR3 100-1200
XR4 50-1200
XR5 50-1000
CSR 50-1000
Carbone Lorraine Sintered, not supposed to require transfer layer.
RC5+ .4 Noisy for street use, autoX, track day.
RC6 0.48 Good cold bike, flat torque curve
RC6E Endurance .5 Endurance version of RC6
RC8 .6 Good cold bite, most bite. flat torque curve
EBC
Green Stuff ? -1000 .46 Good street pad.
Red Stuff 200-1380 .33 Race use only. Not impressive torque.
Yellow Stuff ? -1500 Race use only.
Blue Stuff ? -1500 Race use only.
Pagid
Black RS4-2-1 -1000 .35-.45
Blue RS 4-2 -1100 .40-.46
Orange RS4-4 -1250 .39-.49
Yellow
Grey RS15 -1600 .50-.62
Porterfield
R4-S -900 .4 High performance street & autoX, low dust and noise.
R4 450+ .5 Track only, Carbon Kevlar.
R4-E Track only, Endurance version of R4.
R4-1 -800 .56-.6 AutoX, vintage/light race car use.
Raybestos All listed are track compounds
ST-47 1300 .48
ST-46 1200 .43
ST-45 1250 .40
ST-43 1200 .38 Feels similar to PFC 01, seems to play well with other pads, easy on rotors. I Like them
ST-42 1150 .29
ST-41 1350 .44
Performance Friction
Z-Rated 100-1000 Street, autoX, light track day pad, non-corrosive, easy on the rotors. Some noise when cold or light braking
14 Compound New- Less bite for better control in lower traction situations (street tires, loose track…) Track only.
13 Compound New- Highest bite PFC pad. Track only.
12 Compound New-Track only endurance racing pad.
11 Compound New- Replaces 01. Track only.
06 Compound Track pad. easy on rotors & paint. Similar to 01 but longer lasting and slightly less bite.
01 Compound Track only, very popular easy on rotors, high initial bite.
97 Compound Track only, endurance racing. Replaced by 08
93 Compound Track only.
90 Compound Track only, popular with racing schools. Higher cold bite than most
83 Compound Track only.
80 Compound Track only.
The idea of this thread is to share technical information on pad choices, generally related to use in spirited driving, autocross, or track days.
A couple of things to consider on your brake setup. Brake balance (esp with E34/e32 BBK) could mean that the rear wheels lock up before the front. Also think about temperature range. A high performance pad is useless if the brakes are really big, the car is light and the pads never get to the intended operating range. For this reason, it may make the most sense to buy a pad with a very large operating range. Alternatively, if the car is used with R comp sticky tires, the operating temp may increase. The information above should help one make informed decisions and allow the best bang for the buck.
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I ran Performance Friction Carbon Metallic Street Brake Pads on my stock e28 535i and was happy with their braking performance on the track but unhappy with their use as a DD due to very low initial cold bite.
I have used PFC 11's and have been very happy with wear, cold bite and overall functionality. This was with E32/E34 calipers on turbo E24.
Also have tried Porterfield R4-S in the same environment on E12/E24 635 euro and was impressed by the brake feel and low cost.
My go to website right now is http://www.topbrakes.com. You can easily search options for a specific car, and their prices are about the best around. The only downside is they don't give you the specific part number for the brake pad shape.
