Page 758 - 2022-23 Auto Performance Drag Racing

Wilwood friction pads
are manufactured for
drag racing. In general,
soft, sticky pads that
work best in a low to me-
dium temperatures are best
suited for drag and pro street cars.
Medium pads can handle high temperature extremes and wear longer without fade.
Polymatrix “B” Compound
A race-only, medium-high friction brake compound with good cold response. The friction curve gently rises as temperature increases. A long-wearing pad in middle temperature ranges with moderate wear in sustained high-heat conditions. When high mile-per-hour fade has occurred with lower temp pads, this is the pad to use.
Bolt Circle
Hole Type
DRAG RACING
Polymatrix Brake Pads
ULHP Straight Vane Rotors
Long-grain carbon iron ULHP straight vane rotors have long wear, high-thermal stability, and superior heat resistance. All machined surfaces have less than .001" variation in flatness, parallelism, and run- out.
Part No. Description Dia. Width
WIL160-5839**
HD Drag Race Front Rotor
10.75"
.81"
6 x 6.25"
.325"
WIL160-5844†
HD Pro Series Rear Rotor
12.19"
.81"
8 x 7.62"
5/16"-24
Polymatrix “E” Compound
Designed for drag cars with iron or steel brake rotors. Medium friction compound delivers the best overall wear characteristics in the medium temperature range, offering smooth engagement, consistent response, and a flat torque curve throughout the range.
Polymatrix “Q” Compound
“Q” compound is an enhanced friction ceramic that reduces dust and noise, and improves stopping power through smooth engagement and increased fade resistance. Com- pound recovers quickly and lasts a long time.
BP-10 “Smart Pads” Compound
A street/strip compound that combines low dust and noise with the increased friction of a semi-metallic racing com- pound. Characteristics include good low to middle-tempera- ture wear rates, smooth engagement, consistent response, and a flat torque curve throughout temperature range.
** Replacement rotor for all heavy duty drag race front brake kits, except WIL140- 3425 or WIL140-4304. † Replacement rotor for all heavy-duty pro-series drag race rear axle brake kits.
Standard Hole Mount Steel Rotors
Steel rotors are for drag race use where temperatures are low to moderate and high heat spikes occur on an intermittent basis. Standard hole-mount rotors are offered in solid or lightweight drilled ver- sions and are often directly attached to mounting hats or mounting plates.
†† Replacement rotor for all drag race rear axle brake kits. § Replacement rotor for light-duty drag race front brake kit WIL140-1012. §§ Replacement rotor for all medium-duty drag race front brake kits except WIL140-4271.
Also may be used as replacement for WIL140-4399.
GT Series Shallow Offset Disc Mounting Hat
WIL170-10041
Precision-machined from premium-quality
aluminum for high strength and minimum weight, hat includes threaded rotor mounting holes for use with standard through-hole mounted rotors. Mounting hat has 5 x 4-1/2" bolt pattern, accepts 8 x 7.00" bolt-on rotors and provides a narrow, 1.23" brake offset.
Fixed-Mount Disc Mounting Hats
Ultralight aluminum hats are machined for weight reduction and available in offsets and bolt patterns for most race cars. Also available with no holes for custom bolt circles.
Part No.
Description
Dia.
Width
Bolt Circle
Hole Type
WIL160-1601 ††
Drilled, Rear Axle Rotor
11.44"
.35"
8 x 7.00"
.325"
WIL160-1602
Drilled, Front Rotor
10.00"
.250"
5 x 5.00"
.391"
WIL160-2182 §
Drilled Light-Duty, Front Rotor
10.00"
.32"
5 x 3.88"
.391"
WIL160-3306 §§
Solid Med.-Duty, Front Rotor
10.75"
.35"
6 x 6.25"
.316"
WIL160-3306 §§
Drilled Med.-Duty, Front Rotor
10.75"
.35"
6 x 6.25"
.316"
Description
Polymatrix “B”
Polymatrix “E”
Polymatrix “Q”
BP-10 “Smart Pads”
GM D52, GM II/III
WIL15B-3994K
WIL15E-6102K
—
WIL150-8939K
GM Metric D154
WIL15B-3998K
WIL15E-6103K
—
WIL150-8936K
Dynalite
WIL15B-3991K
WIL15E-6096K
WIL15Q-6824K
WIL150-8850K
Billet Spot
—
—
—
WIL150-1251K
DynaPro Single
WIL15B-9819K
WIL15E-9820K
WIL15Q-10144K
WIL150-v
DynaPro Lug Mount
WIL15B-9836K
WIL15E-9837K
—
WIL150-9136K
Superlite
WIL15B-3992K
WIL15E-6100K
—
WIL150-8856K
Part No.
Bolt Circle Dia.
Holes
Mtg. Type
Bolt Circle
Stud Holes
Stud Dia.
Hat Offset
Hole Dia.
Chevrolet Camaro
WIL170-0176
7.62"
8
5/16"-24
4.75"
5
.51"
1.50"
2.85"
Olds/Pontiac
WIL170-0208
7.00"
8
5/16" Thru
4.5"/4.75"/5"
15
.52"
1.96"
3.06"
Ford/Chrysler
WIL170-0259
7.00"
8
5/16" Thru
4.5"/4.75"/5"
15
.52"
1.71"
3.06"
WIL170-0317
7.00"
8
5/16" Thru
4.5"/4.75"/5"
15
.52"
1.59"
3.06"
WIL170-0764
7.00"
8
5/16" Thru
4.5"/4.75"/5"
15
.52"
1.41"
3.06"
WIL171-3755
7.00"
8
5/16" Thru
No Bolt Holes
N/A
N/A
1.59"
3.06"
WIL170-8320
7.00"
8
5/16"-18
4.5"
15
.52"
.940"
2.66"
Pro Street
WIL170-1827
7.62"
8
5/16"-24
4.5"/4.75"/5"
15
.52"
2.00"
3.06"
756
Note: See diagram on previous page to determine proper application and offset.
2022-23