Page 657 - 2018 Racecar Engineering Drag Racing Parts and Accessories Catalog

Polymatrix Brake Pads ULHP Straight Vane Rotors
Wilwood friction pads are manufac- Long grain carbon iron ULHP straight vane
tured for drag racing. In general, soft sticky rotors have long wear, high thermal stability
pads that work best in a low to medium temperature range are and superior heat resistance. All machined
best suited for drag and pro street cars. Medium pads can handle surfaces have less than .001" variation in
high temperature extremes and wear longer without fade. fl atness, parallelism and run-out.
Polymatrix “B” Compound Part No. Description Dia. Width Bolt Circle Hole Type
A race only, medium-high friction brake compound with good WIL160-5839** HD Drag Race Front Rotor 10.75" .81" 6 x 6.25" .325"
cold response. The friction curve gently rises as temperature WIL160-5844 † HD Pro Series Rear Rotor 12.19" .81" 8 x 7.62" 5/16"-24
increases. A long wearing pad in middle temperature ranges with ** Replacement rotor for all heavy duty drag race front brake kits, except
WIL140-3425 or WIL140-4304. † Replacement rotor for all heavy duty pro
moderate wear in sustained high heat conditions. When high mile series drag race rear axle brake kits.
per hour fade has occurred with lower temp pads, this is the pad
to use. Standard Hole Mount Steel Rotors
Polymatrix “E” Compound Steel rotors are for drag race use where tem-
Designed for drag cars with iron or steel brake rotors. Medium peratures are low to moderate and high heat
friction compound delivers the best overall wear characteristics spikes occur on an intermittent basis. Standard
in the medium temperature range, offering smooth engagement, hole mount rotors are offered in solid or light-
consistent response and a fl at torque curve throughout the range. weight drilled versions and are often directly
attached to mounting hats or mounting plates.
Polymatrix “Q” Compound
“Q” compound is an enhanced friction ceramic that reduces Part No. Description Dia. Width Bolt Circle Hole Type
dust and noise, and improves stopping power through smooth WIL160-0201 †† Solid, Rear Axle Rotor 11.44" .35" 8 x 7.00" .325"
††
engagement and increased fade resistance. Compound recovers WIL160-1601 Drilled, Rear Axle Rotor 11.44" .35" 8 x 7.00" .325"
WIL160-1602
Drilled, Front Rotor
.391"
10.00" .250" 5 x 5.00"
quickly and lasts a long time. WIL160-2182 § Drilled Light Duty, Front Rotor 10.00" .32" 5 x 3.88" .391"
BP-10 “Smart Pads” Compound WIL160-3305 §§ Solid Med. Duty, Front Rotor 10.75" .35" 6 x 6.25" .316"
A street/strip compound that combines low dust and noise with WIL160-3306 §§ Drilled Med. Duty, Front Rotor 10.75" .35" 6 x 6.25" .316"
the increased friction of a semi-metallic racing compound. Char- †† Replacement rotor for all drag race rear axle brake kits.
acteristics include good low to middle temperature wear rates, § Replacement rotor for light duty drag race front brake kit WIL140-1012.
smooth engagement, consistent response and a fl at torque curve §§ Replacement rotor for all medium duty drag race front brake kits
except WIL140-4271. Also may be used as replacement for WIL140-4399.
throughout temperature range.
Polymatrix Polymatrix Polymatrix BP-10
Description “B” “E” “Q” “Smart Pads” GT Series Shallow Offset Disc Mounting Hats
GM D52, WIL15B-3994K WIL15E-6102K — WIL150-8939K Precision machined from premium quality alumi-
GM II/III num for high strength and minimum weight, hats
GM Metric D154 WIL15B-3998K WIL15E-6103K — WIL150-8936K include threaded rotor mounting holes for use with
Dynalite WIL15B-3991K WIL15E-6096K WIL15Q-6824K WIL150-8850K
Billet Spot — — — WIL150-1251K standard through-hole mount rotors. Shallow Offset
DynaPro Single WIL15B-9819K WIL15E-9820K WIL15Q-10144K WIL150-9764K drag hats are designed for narrow space applica-
DynaPro WIL15B-9836K WIL15E-9837K — WIL150-9136K tions with offsets less than 1.00”.
Lug Mount Part No. Description
Superlite WIL15B-3992K WIL15E-6100K — WIL150-8856K
Mustang, 5 x 4.50”, 8 x 7.00”, 1.23” Offset
WIL170-10041 5 x 4.50”, 8 x 7.00”, 1.59” Offset, 2.783” Register Dia.
WIL170-10782
Caliper Shims
Use to adjust calipers for proper clear- Fixed Mount Disc Mounting Hats
ance with the rotors. Sold in packs of ten. Ultralight aluminum hats are machined for weight
Part No. Description reduction and available in offsets and bolt patterns
WIL240-4384 0.032" Thick, 3/8" ID Hole, Ten for most race cars. Also available with no holes for
WIL240-4385 0.032" Thick, 7/16" ID Hole, Ten
WIL240-4386 0.063" Thick, 7/16" ID Hole, Ten custom bolt circles.
WIL240-4387 0.015" Thick, 7/16" ID Hole, Ten Bolt
Circle Mtg. Bolt Stud Stud Hat Hole
Caliper Bolt WIL230-0542 Part No. Model Dia. Holes Type Circle Holes Dia. Offset Dia.
Sliding-type bolts for GM style cal i pers. WIL170-0176 Camaro 7.62" 8 5/16"-24 4.75" 5 .51" 1.50" 2.85"
4.5"/
Olds/
The 7/16"-14 bolt is sold individually. WIL170-0208 Pontiac 7.00" 8 5/16" 4.75"/5" 15 .52" 1.96" 3.06"
Thru
Ford/ 5/16" 4.5"/
Caliper Fit tings WIL170-0259 Chrysler 7.00" 8 Thru 4.75"/5" 15 .52" 1.71" 3.06"
Quality caliper fi t tings are de signed to fi t and WIL170-0317 Ford/ 7.00" 8 5/16" 4.5"/ 15 .52" 1.59" 3.06"
Thru
work the fi rst time. Chrysler 5/16" 4.75"/5"
Ford/
4.5"/
Part No. Description WIL170-0764 Chrysler 7.00" 8 Thru 4.75"/5" 15 .52" 1.41" 3.06"
WIL220-0627 Bleed Screw Assembly, Pack Of Four 4.5"/
WIL220-0628 Tube Adapt, Pack Of Four WIL170-1827 Pro Street 7.62" 8 5/16"-24 4.75"/5" 15 .52" 2.00" 3.06"
Ford/
Rotor Bolt Kits WIL171-2234 Chrysler 7.00" 8 5/16" No Bolt N/A N/A 1.41" 2.78"
Thru
Holes
Bolt kits for fastening rotors to disc mounting hats. WIL170-3265 Mustang 7.62" 8 5/16"-24 4.5" 5 .52" 1.25" 3.06"
Part No. Description WIL171-3755 Ford/ 7.00" 8 5/16" No Bolt N/A N/A 1.59" 3.06"
WIL230-0150 Socket Head, Threaded Rotors, (8) 5/16"-24 x .750" Chrysler Thru Holes
Short Profile Hex, Drag Race Rear Axle Kits Using Thru Bolt Hat, (8) NOTE: See diagram on previous page to determine proper application and offset.
WIL230-0233D
5/16"-18 x .750"
655