WKA: Pit Board 2009-02-20

WKA's Pit Board - 02.20.2009 *** Engine Rules for New Gold Cup Super Stock Class 02.20.2009 -- WKA announces the final engine rules for the new Briggs Super Stock class. The Animal engine will be inspected as per Tech Manual Section 704 with...

WKA's Pit Board - 02.20.2009

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Engine Rules for New Gold Cup Super Stock Class

02.20.2009 -- WKA announces the final engine rules for the new Briggs Super Stock class. The Animal engine will be inspected as per Tech Manual Section 704 with the following exceptions:

Section 704.2.5 SILENCER: RLV B91MO Silencer is required.

Section 704.4 CARBURETOR: Any Tillotson HL series model 334 carburetor, single pumper design; maximum throttle bore 1.005"; maximum venturi 0.790". Throttle shutter must be held by a screw.

704.3 AIR FILTER: Any air filter allowed. Air filter adapter allowed. Air filter adapter may not extend more than 1.875" from the face of the carburetor.

704.6 INTAKE MANIFOLD: Any intake manifold may be used to attach the Tillotson HL carburetor to the Animal cylinder head.

704.7 FUEL PUMP: Any pulse-type fuel pump is allowed. Fuel pump must be pulsed from crankcase upper oil fill cap. Fuel pump must be mounted on engine.

Essentially the Briggs Super Stock engine is a stock Animal engine with the addition of an RLV B91MO Silencer, any intake manifold, and a Tillotson HL Series Model 334 carburetor meeting the specifications above. This configuration will allow competitors to switch classes between stock Animal and Super Stock by changing the carburetor, manifold, and silencer.

-credit: wka

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