Page 706 - 2020-2021 Racecar Engineering Drag Racing Parts and Accessories Catalog

2020 DRAG RACING

Nitrous System Accessories 4500 Billet Throttle Body
Wilson Manifolds offers a complete line of Nitrous WLS473255 NEW!
Pro-Flow nitrous system accessories for the performance High-flow, 4500 Dominator-flanged throttle body
enthusiast. was developed using the latest computer modeling
WLS333221
Part No. Description software and test equipment. CNC-machined from billet 6061-T6 aluminum
WLS332006 Replacement Burst Panels For Nitrous Pro-Flow Plates, Qty. 6 with a black anodized finish, throttle body is fit with stainless steel throttle
WLS333221 Manifold Pressure Relief Valve, Each blades, features 2.55" dia. throttle bores, and flows 2,320 CFM.
WLS333222 Manifold Pressure Relief Valve Set, Pair
WLS368016 -6AN Bottle Mounted Filter/Line Adapter 4-Hole Spacers
WLS379312 Alcohol Solenoid, .312" Economically-priced spacers are fully CNC-machined
WLS810011 WOT Switch Only from billet 6061 aluminum and use a 4-hole design
for increased low- and mid-range horsepower.
WLS011111
Nutbuster Part No. Description
WLS011111 Holley 4150 850 CFM Spacer, 1" Tall, 1.750" Bore
WLS906006
WLS011311 Holley 4150 750 CFM Spacer, 1" Tall, 1.680" Bore
Wing-style -6AN wrench stays directly at-
tached to the nitrous bottle fitting, allowing Carburetor Adapters
quick bottle changes without the need for any other Four-hole adapters maximize horsepower for mis-
tools. Billet 6061-T6 aluminum wrench is lightweight and matched carbs and intakes, providing an exceptionally
durable, and includes a plastic-tipped set screw, to hold the wrench without efficient transition to prevent mixture separation and enhance
damaging aluminum line fittings. air flow and distribution.
Part No. Description
CNC-Ported Edelbrock Victor WLS007030 4150 Carb To 4500 Manifold Adapter, 1.500" Bores
Manifold For SB Chevy WLS027030 4500 Carb To 4150 Manifold Adapter, 1.500" Bores
WLS128250
4500 Dominator Shear Plate
Competition-prepared small block
Chevy manifold includes CNC- WLS525200
blended, port-matched runners, Engineered for use on sheet metal intake manifolds,
recontoured dividers and plenum the 2" bore, 1/2" thick, purple anodized aluminum
areas to maximize out-of-the- plate has a unique 7° taper in the bore to promote fuel atomization, reduce
box performance. Independent dyno tests showed up to a 24 horsepower fuel puddling, improve the carb signal, and flatten the fuel curve.
increase over an unmodified Edelbrock manifold. Manifold is port matched
to Fel-Pro 1206/1266 intake gasket. High Flow Throttle Bodies And Elbows
The result advanced computer design and
Open And Tapered 4-Hole Carb Spacers extensive testing, single-bore billet
Hard-coated aluminum spacers reduce heat transfer from the intake aluminum throttle bodies dramati-
manifold, increase plenum volume and improve air/fuel distribution. Torque cally increase air flow. Brass throttle
and throttle response are increased throughout the RPM range. Available for blades reduce vibration and
Holley 4150 and 4500 series, and Rochester Quadrajet carburetors. thermal expansion. High-flow aluminum elbows will
adapt the throttle bodies to 4150 or 4500 intake manifolds.
Part No. Description
Throttle Bodies
WLS471090 90mm Throttle Body, 1170 CFM, 3-3/4" OD
WLS471105 105mm Throttle Body, 1520 CFM, 4-1/4" OD
105mm Throttle Body, 1520 CFM,
WLS471105V
4-1/4" OD, With V-Band Provision
Open Spacer 4-Hole Spacer WLS471123V 123mm Throttle Body, 5" OD With V-Band Provision
Description Part No. Part No. Elbows And Accessories
Holley 4150 Carb Spacer, 1" Tall WLS000010 WLS004110 WLS462101 90-105mm Elbow, 4150 Flange
WLS462201 90-105mm Elbow, 4500 Flange
Holley 4150 Carb Spacer, 1-1/2" Tall WLS000030 WLS004130
WLS462205 105mm Billet Elbow, 4500 Flange
Holley 4150 Carb Spacer, 2" Tall WLS000050 WLS004150 WLS481101 Throttle Cable Bracket, 95-105mm Throttle Body, Ford Style NEW!
WLS486125 105mm V-Band Completion Kit
Holley 4500 Carb Spacer, 1" Tall WLS020010 WLS024110
WLS486225 123mm V-Band Completion Kit
Holley 4500 Carb Spacer, 1-1/2" Tall — WLS024130 WLS488201 Throttle Position Sensor, Ford Style
Holley 4500 Carb Spacer, 2" Tall WLS020050 — WLS488202 Throttle Position Sensor, Ford w/EFI Connector
WLS840090 90mm Throttle Body Gasket, Ford Style
Rochester Quadrajet, 1" Tall — WLS074110
WLS840105 105mm Throttle Body Gasket, Ford Style
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