Page 710 - 2020-2021 Racecar Engineering Drag Racing Parts and Accessories Catalog

2020 DRAG RACING

ULHP Straight Vane Rotors Tandem Master Cylinder
Long-grain carbon iron ULHP straight vane rotors WIL260-4893
have long wear, high-thermal stability, and superior Durable housing with large-capacity plastic
heat resistance. All machined surfaces have less reservoir. Dual outlet 1-1/16" bore utilizes stock
than .001" variation in flatness, parallelism, and components. Factory-style mount hole pattern
run-out. and outlet thread size. Optional universal mounting bracket kit with push
Part No. Description Dia. Width Bolt Circle Hole Type rod and dust boot available. Ideal for many drag racing or pro-street cars.
WIL160-5839** HD Drag Race Front Rotor 10.75" .81" 6 x 6.25" .325" Part No. Description
WIL160-5844 † HD Pro Series Rear Rotor 12.19" .81" 8 x 7.62" 5/16"-24 WIL220-5247 Replacement Tube Adapter Fitting, 3/16" x 1/2"-20
** Replacement rotor for all heavy duty drag race front brake kits, except WIL140-3425 or WIL220-5248 Replacement Tube Adapter Fitting, 3/16" x 9/16"-20
WIL140-4304. † Replacement rotor for all heavy duty pro series drag race rear axle brake kits. WIL250-2406 Universal Bracket Kit; Master Cylinder To Firewall
WIL250-3677 Bracket Adapter Kit; Master Cylinder To Single Brake Pedal
Standard Hole Mount Steel Rotors WIL260-4894 Tandem Kit; Master Cylinder, Boot, Push Rod, And Retainer
WIL260-4896 1-1/16" Master Cylinder Rebuild Kit
Steel rotors are for drag race use where tempera- WIL330-15080 Replacement Plastic Screw-On Cap, Each
tures are low to moderate and high heat spikes
occur on an intermittent basis. Standard hole-mount High-Volume
rotors are offered in solid or lightweight drilled Aluminum Master Cylinders
versions and are often directly attached to mounting Master cylinders have 26% more fluid capacity and
hats or mounting plates. include formed steel lids, bellows type gas-
Part No. Description Dia. Width Bolt Circle Hole Type kets, internal slosh baffles, and standard
WIL160-0201 †† Solid, Rear Axle Rotor 11.44" .35" 8 x 7.00" .325" mounting dimensions.
WIL160-1601 †† Drilled, Rear Axle Rotor 11.44" .35" 8 x 7.00" .325" Master Cylinder Rebuild Kit Replacement
WIL160-1602 Drilled, Front Rotor 10.00" .250" 5 x 5.00" .391" Description Part No. Part No. Lid and Gasket
WIL160-2182 § Drilled Light Duty, Front Rotor 10.00" .32" 5 x 3.88" .391" 3/4" Bore Master Cylinder WIL260-6764 WIL260-6898 WIL330-13945
WIL160-3306 §§ Solid Med. Duty, Front Rotor 10.75" .35" 6 x 6.25" .316" 7/8" Bore Master Cylinder WIL260-6765 WIL260-6899 WIL330-13945
WIL160-3306 §§ Drilled Med. Duty, Front Rotor 10.75" .35" 6 x 6.25" .316" 1" Bore Master Cylinder WIL260-6766 WIL260-6900 WIL330-13945
†† 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. Knob-Style Proportioning Valves
Adjustable proportioning valves feature a
GT Series Shallow Offset Disc Mounting Hat fine-threaded adjuster for precise pressure
adjustments from 100-1,000 PSI. Unit can
WIL170-10041
deliver up to 57% reduction in line pressure,
Precision-machined from premium-quality aluminum the highest of any proportioning valve currently available. Compact,
for high strength and minimum weight, hat includes lightweight assemblies have dual mounting holes to ease installation. May
threaded rotor mounting holes for use with standard be used to adjust front to rear, side to side, or single wheel brake bias.
through-hole mounted rotors. Mounting hat has 5 x
Part No.
Description
4-1/2" bolt pattern, accepts 8 x 7.00" bolt-on rotors and WIL260-8419 Knob Style Proportioning Valve, 1/8”-27 Ports
provides a narrow, 1.23" brake offset. WIL260-12627 Knob Style Proportioning Valve, M10-1 Ports
Fixed-Mount Disc Mounting Hats Residual Pressure Valves
Ultralight aluminum hats are machined for weight reduction Valves prevent fluid drain-back in sys tems where
and available in offsets and bolt patterns for most race cars. master cylinder is mounted below floor. Also prevent
Also available with no holes for custom bolt circles. excessive piston retraction in disc brake systems for firmer pedal and
Bolt Circle Mtg. Bolt Stud Stud Hat Hole reduced pedal travel. Aluminum housing is tapped for 1/8" NPT on inlet
Part No. Dia. Holes Type Circle Holes Dia. Offset Dia. and outlet for easy installation. Use 2 lb. valve for disc brakes and 10 lb.
Chevrolet Camaro for drum brakes. Includes 1/8" NPT inlet and outlet ports and 1/8" NPT to
WIL170-0176 7.62" 8 5/16"-24 4.75" 5 .51" 1.50" 2.85"
Olds/Pontiac 3/8"-24 brake line adapters.
WIL170-0208 7.00" 8 5/16" Thru 4.5"/4.75"/5" 15 .52" 1.96" 3.06" Part No. Description
Ford/Chrysler WIL260-13706 2 Lb. Blue, Disc Brakes
WIL170-0259 7.00" 8 5/16" Thru 4.5"/4.75"/5" 15 .52" 1.71" 3.06" WIL260-13707 10 Lb. Red, Drum Brakes
WIL170-0317 7.00" 8 5/16" Thru 4.5"/4.75"/5" 15 .52" 1.59" 3.06" WIL260-13783 2 Lb. Blue With Fittings, Disc Brakes
WIL170-0764 7.00" 8 5/16" Thru 4.5"/4.75"/5" 15 .52" 1.41" 3.06" WIL260-13784 10 Lb. Red With Fittings, Drum Brakes
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" Quick Check Gauge
Pro Street
WIL170-1827 7.62" 8 5/16"-24 4.5"/4.75"/5" 15 .52" 2.00" 3.06" WIL260-0966
Note: See diagram on previous page to determine proper application and offset. Easily read gauge (0-1,500 PSI) provides quick line pressure
reading for accurate master cyl in der and brake bias set up.
Essential for troubleshooting brake system.

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