SAAS EFI Adjustable Performance Fuel Pressure Regulator 1:1 Rising Rate Polished

SAAS Fuel Pressure Regulator Adjustable EFI Polished

FEATURES:

• Suits 4 Cyl and Small Capacity 6 Cyl
• 1:1 Rising Rate
• Turbo and naturally aspirated applications
• 1/8: - 27 NPTF auxiliary port
• Billet CNC aluminium
• Available in Black (SR1001) and Silver (SR1002)

This is the ratio between boost pressure and fuel pressure increase. A 1:1 ratio means that for every 1 PSI increase in boost pressure, the fuel pressure will also increase by 1 PSI to ensure that the pressure differential between the inlet and outlet of the injector is constant. Effectively, injectors are solenoid valves which open and close when power is applied to them.

If fuel pressure is too high, the injector solenoid will not have enough energy to open the valve fully causing the engine to starve of fuel. It is essential to maintain a constant pressure differential between the inlet and outlet of the injector and hence why a 1:1 ratio is ideal.