Ideal bypass for use with a positive-displacement fuel pump (typically not required for diaphragm-type pumps), Adjustable diaphragm lets you set fuel pressure, Also uses a Holley jet inside, Due to fuel pump variations, the jet is not included
Adjustable Pressure Relief Valve for Belt Drive Fuel Pump Speedway Motors
Adjustable Pressure Relief Valve for Belt Drive Fuel Pump
Sku # 91011579
Mfr. Part # 91011579
Condition
New
Brand
Speedway Motors
Sold
Each
Details

This pressure relief valve is the ideal bypass valve for use with a positive displacement fuel pump (typically not required for diaphragm type pumps). For use with any carbureted race engine using a belt drive fuel pump. This bypass valve is well suited for alcohol carburetors with gear type pumps.

Adjustable diaphragm lets you set fuel pressure while the Holley jet inside allows you to reduce idle fuel pressure without affecting operating pressure. Due to fuel pump variations, the jet is not included. The fuel pump relief valve features a stainless steel seat and bronze popitt valve for maximum resistance to corrosion.

  • Easily mounts directly to the carb fuel log
  • Adjusting screw on top sets high RPM fuel pressure
  • Easy pressure adjustments at 7-14 PSI
  • Adjustable to vastly different fuel pumps
  • Maximum fuel availability at the carb
  • 3/8" NPT ports
Specs
Fuel Pressure Rating (psi)
7-14
MFG. Part #
91011579
Reviews

Pressure regulator

Rated
Product Rating
by Steffens racing on May 10, 2022

Summary: We use this on the end of our fuel log. The best thing about it is the jet. It's a copy of a Holley but does the job. Easy to adjust idle and wide open pressure. A must have if you run a belt drive pump.

Yes, I recommend this product.

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Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.