Maximize Fuel Delivery. Refine Control.


From high-flow pumps to adjustable regulators, TSP components maintain stable pressure and responsive delivery under load. Designed for performance engines that demand reliability, fine control, and consistency through every throttle change.

Each unit is precision-built to ensure smooth fuel flow, superior sealing, and long-term durability — even in the most demanding environments.

Fuel Pumps and Regulators Q&As

What does a fuel pump do?

A fuel pump delivers gasoline or fuel from the tank to the engine at a consistent, controlled pressure. It ensures that your engine receives the right amount of fuel under all driving conditions — from idle to wide-open throttle.

What is the purpose of a fuel pressure regulator?

The fuel pressure regulator maintains steady fuel pressure to the injectors or carburetor, adjusting flow as engine demand changes. This prevents rich or lean conditions and ensures optimal performance and efficiency.

How do I choose the right fuel pump for my setup?

Start by matching your engine’s horsepower, fuel type (gasoline, E85, etc.), and delivery system (EFI or carbureted). Electric pumps typically suit high-performance or EFI applications, while mechanical pumps are ideal for carbureted engines. Always verify flow rate (GPH/LPH) and pressure requirements.

What happens if fuel pressure is too high or too low?

  • Too high: The engine runs rich, wasting fuel and causing rough idle or fouled plugs.
  • Too low: The engine runs lean, potentially leading to detonation and power loss.

    Proper regulation ensures consistent performance and engine safety.

How do I wire an electric fuel pump?

Electric pumps should be wired through a relay and fused circuit, ideally connected to a switched 12V source. Always ground the pump directly to the chassis or frame for best performance and reliability.

What kind of maintenance does a fuel pump require?

Regularly check fuel filters and lines for clogs or leaks, and make sure the pump is mounted securely. Keep your tank clean — debris and rust can cause premature pump failure.

What causes a fuel pump to fail?

Common causes include running the pump dry, contaminated fuel, clogged filters, or poor electrical connections. Using high-quality fuel and maintaining a clean system will extend pump life significantly.

Do TSP fuel system components come with a warranty?

Yes. All TSP fuel pumps and regulators are backed by a 1-year limited warranty against manufacturing defects. For details, visit our Warranty & Returns page.