Sunday, December 04, 2016
Brake Pad Part No: 15B-3994K-B

Brake Pad Guide Brake Pads Chart

Brake Pads
High-Temperature Racing Pads

Pad#:   D52
Compound:   PolyMatrix B
Wilwood Brake Pad Plate #D52

Wilwood Brake Pad Plate #D52
zoom image
<Go Back>

Call (805) 388-1188

Product Number: 15B-3994K-B     Price: $197.99
Pad Dimensions
Thickness(in): Area(in²): Volume(in³): Beded:
.52 / .58 10 3.9 Y
Temperature & Friction Ratings
Peak Temperture Rating: Peak Friction Rating:
1300+ F. 0.62
Dust & Noise Ratings
Dust Production Rating: Pad Noise Rating:
N-A N-A

Performance Characteristics
  • Medium-high friction, good cold response
  • Gently rising torque curve, predictable engagemnet
  • Low wear rate at medium temperatures, increasing to moderate at high temperature.
  • Medium-high friction, good cold response

Vehicle Applications
Driving EnvironmentVehicle Sub-TypesApplication Duty
Rally Heavy Duty
Road Race Heavy Duty
Late Model Asphalt ASA, All Pro, SW Tour, etc...Heavy Duty
Stock Cars NASCAR, BGN, CTS, ARCA, etc... Medium Duty
Late Model Dirt STARS, UMP, IMCA, etc...Heavy Duty
Northeast Modified Dirt or PavementHeavy Duty
Open Wheel Sprint, Midget, etc… Dirt or PavementHeavy Duty
Off Road Heavy Duty

Pad Illustration and Dimensions
Wilwood Brake Pad Plate #D52 Large Drawing

Wilwood Brake Pad Plate #D52 Large Drawing


Compound Characteristics
PolyMatrix B

PolyMatrix B


Compound Data Sheet
Application:

  • Race ONLY compound is a value priced, proven workhorse for most weekly category asphalt late models, sprints, modifieds, and sportsman divisions.
  • Hard braking dirt late models, DIRT modifieds, and rear inboard sprint brakes with vented iron or steel rotors.
  • SCCA club racers, rally, and auto-cross.
  • High MPH drag cars if high end fade occurs with lower temperature pads.
Characteristics:

  • Traditional favorite for asphalt LM's, modifieds, and sprints.
  • Modifieds, late models, and other hard braking dirt applications.
  • Intermediate weight road course, auto-cross, rally.
  • Beds easily and fully compatible with all iron and steel.
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.

Wilwood Compatible Calipers: Pad # D52
D52 Dual Piston Floater
Wilwood D52 Dual Piston Floater Caliper

Wilwood D52 Dual Piston Floater Caliper
zoom image
D52 Dual Piston Floater Caliper

The D52 caliper is a direct bolt-on 2 piston replacement for the factory original single calipers on many 1968-96 GM Passenger Vehicles and Trucks. Forged billet aluminum bodies, stainless steel pistons, and competition style high-temperature seals put and end to the rust, bore pitting, and seal failures that plague the OE caliper design. D52 calipers provide low-maintenance performance and a huge weight savings with high temperature reliability for the street and track. View GM D52 Dual Piston Calipers
Caliper Dimensions
Piston Count: Piston Area Range (in²): Pad Area Range (in²):
2 2.46 6.28 10
Pad Volume Range (in³): Max Rotor Widths (in): Max Rotor Diameters (in):
3.9 1.28 12.19
GM III Single Piston Floater
Wilwood GM III Single Piston Floater Caliper

Wilwood GM III Single Piston Floater Caliper
zoom image
GM III Single Piston Floater Caliper

Wilwood’s GMIII caliper represents the latest refinements in caliper design and manufacturing through solid modeling and stress simulation programs. The result is the most rigid, highest torque, lightweight aluminum caliper with weights starting at 3.36 pounds. Requires use of hardened Wilwood slide pins (sold separately), request part no. 230-0619 (slide pin kit) contains 4 slide pins, enough for two calipers View GM Single Piston Calipers
Caliper Dimensions
Piston Count: Piston Area Range (in²): Pad Area Range (in²):
1 4.45 5.94 10
Pad Volume Range (in³): Max Rotor Widths (in): Max Rotor Diameters (in):
3.9 1.25 11.75