Breakdown of Included Items

JEGS 555-159120 Fuel Pressure Regulator Features:

• Maintains steady flow and precise pressure at all times
• 30 to 100 psi range for electronic fuel injection applications using gasoline only
• Fuel pressure to boost pressure ratio: 1:1 (For every pound of boost, an equivalent pound of fuel pressure is added)
• The pressure is easily adjusted with the top-mounted Allen-head screw. Lock in place with the supplied nut 
• Ports Included:
  • (1) -8 an o-ring inlet (side)
  • (1) -8 an o-ring return (bottom)
  • (3) 3/8 in. NOT outlets (side)
  • vacuum/boost reference port
  • (1) 1/8 in. NPT gauge port
• 1/8 in. NPT port plug can be removed to add a fuel pressure gauge
• The mounting bracket can be installed in different orientations
• The durable black anodized coating protects from corrosion

JEGS 555-159120 Fuel Pressure Regulator Note:

• This Fuel Pressure Regulator is for EFI Applications Only

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

FAQ

Do I need a fuel pressure regulator for EFI?

• Yes, the JEGS Fuel Pressure Regulator for EFI-Equipped Engines is essential for maintaining optimal fuel pressure in your electronic fuel injection (EFI) system. This regulator ensures that the fuel delivery to the injectors remains consistent, preventing fuel starvation or flooding, and optimizing engine performance and efficiency.

What does the fuel pressure regulator do in a basic EFI system?

• In a basic EFI system, the fuel pressure regulator, such as the JEGS Fuel Pressure Regulator, controls the fuel pressure delivered to the injectors. By regulating the pressure, it ensures that the injectors receive a steady flow of fuel at the correct pressure, regardless of changes in engine load or speed. This helps maintain consistent air-fuel ratios and engine performance.

What PSI should a fuel pressure regulator be?

• The JEGS Fuel Pressure Regulator for EFI-Equipped Engines is adjustable and can regulate fuel pressure within the range of 30-100 psi. The optimal pressure setting depends on various factors, including the specific requirements of your EFI system, engine configuration, and performance goals. Consult your vehicle's manufacturer or tuner for guidance on setting the appropriate fuel pressure for your application.

Do I need an adjustable regulator for my EFI system?

• Having an adjustable fuel pressure regulator, like the JEGS Fuel Pressure Regulator, offers greater flexibility and precision in tuning your EFI system. An adjustable regulator allows you to fine-tune the fuel pressure to meet the specific demands of your engine and fuel system, ensuring optimal performance and efficiency across a wide range of operating conditions.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART