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Saturday, May 18, 2013
Brake Pad Part No: 15E-6941K
Brake Pads
Street Performance / Racing Pads

Pad#:   8517
Compound:   PolyMatrix E
Wilwood Brake Pad Plate #8517

Wilwood Brake Pad Plate #8517 zoom image
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Product Number: 15E-6941K     Price: $113.78
Pad Dimensions
Thickness(in): Area(in²): Volume(in³): Beded:
.67 9.2 4.5 N
Temperature & Friction Ratings
Peak Temperture Rating: Peak Friction Rating:
1000+ F. 0.48
Dust & Noise Ratings
Dust Production Rating: Pad Noise Rating:
Moderate Moderate
Performance Characteristics
  • Medium friction, high effective temperarture range in medium temperature pad group.
  • Smooth engagement, Flat torque curve
  • Low wear rate
  • Medium friction, high effective temperarture range in medium temperature pad group.
Vehicle Applications
Driving EnvironmentVehicle Sub-TypesApplication Duty
Junior Dragster Heavy Duty
Street Rods  Heavy Duty
Street Performance DomesticHeavy Duty
Street Performance ImportHeavy Duty
Motorcycles Heavy Duty
Road Race Light Duty
Late Model Dirt STARS, UMP, IMCA, etc...Medium Duty
Drag Racing Heavy Duty
Open Wheel Sprint, Midget, etc… Dirt or PavementMedium Duty
Off Road Medium Duty
Kart Medium Duty
Power Sports ATV, SnowmobileMedium Duty
Pad Illustration and Dimensions
Wilwood Brake Pad Plate #8517 Large Drawing

Wilwood Brake Pad Plate #8517 Large Drawing
Compound Characteristics
PolyMatrix E

PolyMatrix E

Compound Data Sheet
    Application:

  • Most dirt track applications including super late models, modifieds, and rear inboard sprints using vented iron rotors.
  • Light to medium duty road racing and track day events.
  • Drag racing with iron or steel rotors.
  • Performance street category competition.
     Characteristics:

  • Medium friction compound with the highest effective range in the medium temperature pad group.
  • Smooth engagement with consistent response from a flat torque curve throughout its entire effective temperature range.
  • Best overall wear properties in the medium temperature pad group.
  • Beds quickly and provides fast response without excessive abrasion on iron or steel rotors.
Compound Temperature Range & Torque Values
Temperature range and overall friction value are the primary considerations for pad selection. The pads must be capable of maintaining the proper amount of friction for stopping power within the temperatures that will be realized on the track during the event. Then, overall wear rate must be considered. For most asphalt and road race applications, compounds in the high temperature ranges over 1000°F range are usually necessary. Dirt track, drag race, and street performance applications usually operate at temperatures between 500° and 1000°F. Keep in mind that these are general ranges, and not absolute values. Many factors and unforeseen influences can affect brake temperatures. The best indicator for pad selection will always be on track performance. If pad fade (friction loss) due to overheating occurs, then improved cooling, a heavier rotor, or a higher temperature range pad may all become necessary.