Willy's alcohol fuel regulator features a special diaphragm that uses engine vacuum to automatically regulate fuel pressure. At idle or deceleration, when manifold vacuum is high, the fuel pressure regulator opens and drops fuel pressure for clean restarts and keeps carburetor from flooding or blubbering in the corner. As the throttle is opened, manifold vacuum drops which closes the fuel pump regulator and raises pressure for proper straightaway fuel mixture.
This bypass fuel regulator is designed to be used with a piston-style mechanical fuel pump only.  Alcohol regulator has a -8 AN O-ring female inlet port and a -8 AN male return fitting. Requires a fuel return line and vacuum port (base plate or intake manifold) for installation
Willys Carbs WCD891 Alcohol Fuel Pressure Regulator Willys Carbs
Willys Carbs WCD891 Alcohol Fuel Pressure Regulator
Sku # 800891
Mfr. Part # WCD891
Condition
New
Brand
Willys Carbs
Sold
Each
Details
Info

Willy's alcohol fuel regulator features a special diaphragm that uses engine vacuum to automatically regulate fuel pressure. At idle or deceleration, when manifold vacuum is high, the fuel pressure regulator opens and drops fuel pressure for clean restarts and keeps carburetor from flooding or blubbering in the corner. As the throttle is opened, manifold vacuum drops which closes the fuel pump regulator and raises pressure for proper straightaway fuel mixture.

This bypass fuel regulator is designed to be used with a piston-style mechanical fuel pump only. Alcohol regulator has a -8 AN O-ring female inlet port and a -8 AN male return fitting. Requires a fuel return line and vacuum port (base plate or intake manifold) for installation.

Alcohol regulator provides 10 psi at 4500 RPM and 2-5 psi at idle

Charts

(PDF)

Specs
Sold in Quantity
Each
MFG. Part #
WCD891
Fuel Pressure Rating (psi)
2-10
Related Items / Suggested Parts
Straight High-Flow O-Ring -8 AN Hose to -8 AN Port Fitting
Straight High-Flow O-Ring -8 AN Hose to -8 AN Port Fitting
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