Description

Achieve optimal fuel delivery and protect your carburetor from excessive pressure with the Holley Fuel Pressure Regulator (4.5-9 PSI), part number 12-803. Designed for carbureted applications, this high-quality regulator provides precise control over your fuel system’s pressure, ensuring consistent and stable fuel flow within the ideal operating range of 4.5 to 9 PSI. (Note: PSI, or Pounds per Square Inch, is a common international unit for measuring pressure.) Maintaining correct fuel pressure is crucial for preventing fuel starvation, flooding, and ensuring efficient engine performance. This Holley regulator is built for durability and reliability, making it an essential component for any performance street car, hot rod, or race vehicle in South Africa where consistent carburetion is paramount.

Key Features:

• Holley Quality: Trusted brand for high-performance fuel system components.
• Adjustable Pressure Range: Provides precise control from 4.5 PSI to 9 PSI, ideal for most carbureted setups.
• Consistent Fuel Delivery: Maintains stable fuel pressure, preventing fluctuations that can affect engine performance.
• Protects Carburetor: Prevents damage and flooding caused by excessive fuel pump pressure.
• Durable Construction: Made from high-quality materials for long-lasting reliability.
• Versatile Application: Suitable for petrol or alcohol fuel use.
• Easy to Install: Designed for straightforward installation into your fuel line.
• Optimizes Performance: Ensures your carburetor receives the correct fuel pressure for peak efficiency.
• Nationwide Delivery Across South Africa: We ship fuel system components nationwide from Alberton, Gauteng.
• Expert Support Available: Our team can assist with installation and pressure setting guidance.

Why Choose the Holley Fuel Pressure Regulator (4.5-9 PSI) – 12-803 in South Africa?

For carbureted vehicle owners and builders in South Africa, the Holley Fuel Pressure Regulator (4.5-9 PSI) – 12-803 is an indispensable component. It ensures precise and stable fuel pressure, optimizing carburetor performance, preventing issues like flooding or starvation, and protecting your valuable fuel system components.

Specifications:

• Pressure Range: Adjustable from 4.5 PSI to 9 PSI (Pounds per Square Inch)
• Application: Suitable for petrol or alcohol fuel use
• Inlet/Outlet Ports: The inlet and outlet ports are 1/2 NPT Female
• Material: Chrome
• Part Number: 12-803
• Brand: Holley

Frequently Asked Questions:

1. Why do I need a fuel pressure regulator? Many aftermarket fuel pumps can deliver pressure higher than what a carburetor requires (typically 4.5-7 PSI). A regulator reduces and maintains this pressure to a stable, consistent level, preventing carburetor flooding, fuel starvation, and ensuring optimal performance.
2. How do I adjust the fuel pressure? Holley regulators typically have an adjustment screw or bolt. You’ll need a fuel pressure gauge (sold separately) installed in the fuel line after the regulator to accurately set the desired pressure while the engine is running.
3. Where should the fuel pressure regulator be installed? The regulator should be installed in the fuel line after the fuel pump and before the carburetor(s). Ideally, it should be mounted as close to the carburetor as practical to minimize pressure fluctuations.
4. Is this regulator suitable for EFI systems? No, this regulator is specifically designed for carbureted systems with low-pressure requirements. EFI (Electronic Fuel Injection) systems typically require much higher fuel pressures (e.g., 40-60 PSI) and specific EFI regulators.
5. Do you ship Holley fuel system parts throughout South Africa? Yes, we offer reliable nationwide delivery of performance fuel system components across South Africa from our location in Alberton, Gauteng.
6. What are common signs of incorrect fuel pressure? Too high pressure can lead to flooding, black smoke, and poor idle. Too low pressure can cause fuel starvation, hesitation, and a lean condition, especially under acceleration.