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Founder, 1929-2014
Speedy Bill
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Shop Oval Track Air & Fuel Delivery At Speedway Motors

Speedway Motors stocks all the best names in circle track racing carburetors and intake manifolds! Plus, we have a great selection of fuel cells, as well as electric and mechanical fuel pumps. Don't forget to let your engine breath with filters from K&N, R2C and aFe Power. Whether you run alcohol or gas, Speedway can fuel your need for speed!

"Oval Track, Fuel Pressure Regulators" Page 1 of 1

  • Fuelab 52501-1 EFI Fuel Pressure Regulator, 25-90 PSI
    Fuelab 52501-1 EFI Fuel Pressure Regulator, 25-90 PSI
    SKU-96052501
    x
                

    Gasoline, methanol, ethanol, and dieselfuel compatible for fuel injected applications. Accepts port style and non-port style union fittings without interference. Also features two 1/8” NPT gauge ports for an external pressure gauge and pressure reference. Fine thread pitch on adjustment screw for precise pressure adjustment.

    • Includes stainless steel mounting bracket
    • One -6AN inlet and one -6AN return port in-line
  • Garage Sale - Holley 12-803 Fuel Pressure Regulator, 2-Port, 4.5-9 PSI
    Garage Sale
    Garage Sale - Holley 12-803 Fuel Pressure Regulator, 2-Port, 4.5-9 PSI
    SKU-UP33344
    x
                

    These adjustable fuel pressure regulators from Holley can be adjusted from 4-1/2 to 9 PSI to regulate fuel pressure for various types of carburetors. Fuel pump regulator works well with Holley high performance fuel pumps. Use one fuel regulator per fuel bowl for high flow applications.

    This fuel pressure regulator has a 3/8" NPT gauge port and requires reducer 617-6157 to install a fuel pressure gauge.

    427-12803 Instructions (PDF) 

     

    This is garage sale priced because it has been run.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS   

  • Aeromotive 13301 Bypass Fuel Pressure Regulator, 3-60 PSI
    Aeromotive 13301 Bypass Fuel Pressure Regulator, 3-60 PSI
    SKU-91012804
    x
                

    A dual purpose, universal fuel pressure regulator for EFI or carbureted applications. Base fuel pressure is adjustable from 3 to 20 PSI with standard spring(installed), or from 20 to 60 PSI with high pressure spring (included). Also acts as a rising rate fuel pressue regulator which raises pressure on a 1:1 ratio with boost. All ports are 3/8" NPT, with one inlet and three outlets on the main body and one return port on the bottom. Bypass fuel pressure regualtor design provides the ultimate, dynamic fuel pressure control.

    • Gasoline compatible only
    • Can regulate any fuel pump between 100 and 250 GPH
    • Fuel pressure rises on a 1:1 ratio when referencing boost
    • All ports are 3/8” NPT, with one inlet and three outlets on the main body and one return port on the bottom
    • Bypass design provides the ultimate, dynamic fuel pressure control

    910-12804 Instructions (PDF)

    Note: Requires a return line to be installed from the bottom of the regulator to the top of the tank.

  • Holley 12-704 Big Port Adjustable Fuel Pressure Regulator, 4.5-9 PSI
    Holley 12-704 Big Port Adjustable Fuel Pressure Regulator, 4.5-9 PSI
    SKU-42512704
    x
                

    This universal fuel regulator regulates pressure from 4-1/2 to 9 PSI. This fuel pump regulator has one 1/2" NPT inlet and two 1/2" NPT outlet ports. Works with low pressure carbureted systems and as an alcohol fuel regulator.

    • Includes mounting hardware and AN style fittings
    • Alcohol compatible
    • .437" (7/16") restriction

    425-12704 Instructions (PDF)

  • Garage Sale - Barry Grant Throttle Bypass - Holley Style Two-Barrel
    Garage Sale
    Garage Sale - Barry Grant Throttle Bypass - Holley Style Two-Barrel
    SKU-91071022
    x
                

    To get enough fuel into your Alky carb the fuel puressure tends to be too high and the car won't idle and tends to load up in the turns. This bypass mounts under the carb and works with the fuel pump to maintain a fuel pressure where it needs to be. 

     

    Clearance!

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

  • Fuelab 51506-1-L-L Carbureted Fuel Pressure Regulator, 1-3 PSI
    Fuelab 51506-1-L-L Carbureted Fuel Pressure Regulator, 1-3 PSI
    SKU-96051506
    x
                

    Gasoline, methanol, and ethanol fuel compatible for carbureted applications. Accepts port style and non-port style union fittings without interference. Also features two 1/8” NPT gauge ports for an external pressure gauge and pressure reference. Fine thread pitch on adjustment screw for precise pressure adjustment.

    • Includes stainless steel mounting bracket
    • Two -6AN inlets and one-6AN return port in-line
  • Fuelab 51504-1 Carbureted Fuel Pressure Regulator, 4-12 PSI
    Fuelab 51504-1 Carbureted Fuel Pressure Regulator, 4-12 PSI
    SKU-96051504
    x
                

    Gasoline, methanol, and ethanol fuel compatible for carbureted applications. Accepts port style and non-port style union fittings without interference. Also features two 1/8” NPT gauge ports for an external pressure gauge and pressure reference. Fine thread pitch on adjustment screw for precise pressure adjustment.

    • Includes stainless steel mounting bracket
    • Two -6AN inlets and one-6AN return port in-line
  • Speedway Chrome Fuel Pressure Regulator, 4-9 PSI
    Speedway Chrome Fuel Pressure Regulator, 4-9 PSI
    SKU-91012803
    x
                

    This chrome plated 2-port low pressure fuel regulator is adjustable from 4 to 9 PSI for carbureted applications. Fuel pump regulator includes a chrome steel mounting bracket.

    • Use one regulator per fuel bowl for high flow applications
    • One 3/8" NPT female inlet (bottom)
    • Two 3/8" NPT female outlets (sides)
  • Holley 12-803 Fuel Pressure Regulator, 2-Port, 4.5-9 PSI
    Holley 12-803 Fuel Pressure Regulator, 2-Port, 4.5-9 PSI
    SKU-42712803
    x
                

    These adjustable fuel pressure regulators from Holley can be adjusted from 4-1/2 to 9 PSI to regulate fuel pressure for various types of carburetors. Fuel pump regulator works well with Holley high performance fuel pumps. Use one fuel regulator per fuel bowl for high flow applications.

    This fuel pressure regulator has a 3/8" NPT gauge port and requires reducer 617-6157 to install a fuel pressure gauge.

    427-12803 Instructions (PDF)

  • Hilborn Fuel Injection END510S Secondary Bypass Valve, Brass
    Hilborn Fuel Injection END510S Secondary Bypass Valve, Brass
    SKU-385F510S
    x
                

    This brass valve is designed to control high rpm, closed throttle fuel pressure. It consists of a body, cap, poppet, spring, a .187” shim, and seal. The body is marked with the letter “S” and an arrow. It connects directly off the metering valve, with the arrow pointing toward the fuel tank. Since fuel flow is controlled mechanically by the metering valve, any open throttle position 25 degrees or more will automatically shut of the Secondary By-Pass Valve. This eliminates the possibility of a lean condition when throttle is open. Shims and springs can be added to change fuel pressure.

    AN Thread Sizing Guide

     

  • Willys Carbs WCD892 Gasoline Fuel Pressure Regulator
    Willys Carbs WCD892 Gasoline Fuel Pressure Regulator
    SKU-800892
    x
                

    Willy's fuel pressure 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 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.  Adjsutable fuel 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.

    800-892 Instructions (PDF)

  • Willys Carbs WCD891 Alcohol Fuel Pressure Regulator
    Willys Carbs WCD891 Alcohol Fuel Pressure Regulator
    SKU-800891
    x
                

    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.

    800-891 Instructions (PDF)

  • MSD 2222 Fuel Pressure Regulator, Boost Adjustable
    New
    MSD 2222 Fuel Pressure Regulator, Boost Adjustable
    SKU-5472222
    x
                This Regulator is designed for turbo or supercharged engines. As boost pressure increases, more fuel is required by the engine. This regulator features a boost reference circuit that adds more fuel in relation to boost pressure. The inlet and outlets are 5/16" and a jam nut is supplied for special threads on the bottom to ease mounting to a bracket. These rugged Regulators are free standing so they don't have to be mounted directly to a fuel rail and can be installed in any position. Fuel pressure is set with an adjusting bolt and is locked in position with a locking nut.
    • Boost Referenced Regulator
  • Fuelab 54502-1-G Mini Fuel Pressure Regulator, 90-125 PSI
    Fuelab 54502-1-G Mini Fuel Pressure Regulator, 90-125 PSI
    SKU-96054502
    x
                

    Fuelab mini fuel pressure regulators have all the same great features with 50% less weight and a smaller size. These EFI fuel pressure regulators accept port style and non-port style union fittings without interference. These high pressure fuel regulators have a -6 AN return port in-line with the -6 AN inlet port (not on the bottom) which allows for easy installation in extremely tight locations.

    • Smaller and weighs 50% less than other fuel regulators
    • -6 AN inline female inlet and outlet ports
    • 1/8" NPT gauge port with plug for external pressure gauge
    • 1/8” NPT pressure reference port with barbed fitting
    • Compatible with gasoline, diesel, methanol and ethanol
    • 1.50" D x 2.00" W x 2.25" H
  • Longacre 43600 Low Pressure Shut-Off Switch
    Longacre 43600 Low Pressure Shut-Off Switch
    SKU-6044360
    x
                This automatic shut-off switch shuts off the ignition or an electric fuel pump when pressure drops below 12 psi. Prevents engine damage, helps prevent fires, and keeps the motor from starting until oil-pressure rises. Should be used with a momentary bypass switch (913-64381). 
            
  • MSD 2922 Fuel Pump Return Kit
    $291.99
    New
    MSD 2922 Fuel Pump Return Kit
    SKU-5472922
    x
                If you plan to run a return line with your Atomic EFI system, this kit provides a regulator, 15 ft of 3/8" line and the fittings to assemble.

    Installation Instructions (PDF)

    • Regulator included
    • Ready to assemble
  • Professional Products 10651 Powerflow 2-Port Fuel Regulator, 4.5-9 PSI
    Professional Products 10651 Powerflow 2-Port Fuel Regulator, 4.5-9 PSI
    SKU-91010735
    x
                

    The Powerflow is a terrific all-around fuel pressure regulator for carbureted applications. This adjustable fuel pressure regulator is suitable for use with one dual inlet carb or two single inlet carbs on applications up to 650 HP. For higher HP, use two fuel pump regulators.

    • For one carb with a dual inlet or two carbs with single inlets 
    • Good for up to 650 HP and 150 GPH on gas or alcohol
    • One 1/2" NPT inlet port
    • Two 3/8" NPT outlet ports
    • Adjustable from 4.5-9 PSI

    910-10735 Instructions (Part 1) (PDF) 

    910-10735 Instructions (Part 2) (PDF) 

  • Fuelab 54501-1 Mini Fuel Pressure Regulator, 25-90 PSI
    Fuelab 54501-1 Mini Fuel Pressure Regulator, 25-90 PSI
    SKU-96054501
    x
                

    Fuelab mini fuel pressure regulators have all the same great features with 50% less weight and a smaller size. These EFI fuel pressure regulators accept port style and non-port style union fittings without interference. The 545 Series high pressure fuel regulator has its -6 AN return port in-line with the -6 AN inlet port (not on the bottom) which allows for easy installation in extremely tight locations.

    • Smaller and weighs 50% less than other fuel regulators
    • -6 AN inline female inlet and outlet ports
    • 1/8" NPT gauge port with plug for external pressure gauge
    • 1/8” NPT pressure reference port with barbed fitting
    • Compatible with gasoline, diesel, methanol and ethanol
    • 1.50" D x 2.00" W x 2.25" H
  • Holley 12-804 Adjustable Fuel Pressure Regulator, 1-4 PSI
    Holley 12-804 Adjustable Fuel Pressure Regulator, 1-4 PSI
    SKU-42712804
    x
                

    This Holley universal low pressure fuel regulator is factory-set to 2.7 PSI, but is fully adjustable from 1 to 4 PSI. Use with standard pump only - not recommended for maximum pressure pumps. Fuel pressure regulator includes mounting bracket.

    Regulator has a 3/8" NPT tapped fuel pressure gauge port and requires reducer 617-6157 to install the gauge. Fuel pump regulator has 3/8" NPT inlet/outlet ports.

    427-12804 Instructions (PDF)