EFI systems

EFI fuel pumps (Electronic Fuel Injection pumps) are high-performance electric fuel pumps engineered specifically for modern fuel injection systems. Unlike the low-pressure gasoline pump models used in traditional carburetor systems, EFI systems require higher, consistent fuel pressure (typically 43-58 PSI) to ensure the injectors can properly atomize the fuel. This precise delivery is critical for achieving optimal horsepower, torque, and fuel efficiency.

Why You Need to Upgrade to a High-Performance EFI Fuel Pump

When performing an engine upgrade (like an LS Swap), adding a turbocharger, or converting an older vehicle from a carburetor to EFI, the stock or standard fuel pump immediately becomes a bottleneck.

  • The Problem: Insufficient fuel flow causes the engine to 'lean out' under load. This not only results in significant power loss but can also lead to catastrophic engine damage.
  • The Solution: A high-flow EFI fuel pump (e.g., 300LPH or 405LPH) ensures your engine receives an ample fuel supply under all conditions, which is essential for unlocking its full potential.

The All-in-One Solution: The EFI Fuel Pump Kit

To simplify installation and guarantee system-wide compatibility, opting for a complete EFI fuel pump kit is the smartest choice. A professional kit typically includes:

Using a complete kit eliminates the guesswork and compatibility issues that can arise from sourcing parts individually, ensuring a seamless and reliable installation.

EVIL ENERGY Fuel Pump: Your Guarantee of Performance and Reliability

In the realm of performance fuel systems, the EVIL ENERGY Fuel Pump name is synonymous with reliability and power. EVIL ENERGY specializes in providing professional-grade fuel solutions for auto enthusiasts.

Whether you need a powerful standalone external electric fuel pump or a comprehensive EFI fuel pump kit for your EFI conversion, EVIL ENERGY offers rigorously tested products to ensure your high-performance vehicle runs strong and stable.

+ Read more
Sidebar

Categories

Price

$
to
$

Size

Capacity

Featured Products

EVIL ENERGY PTFE Hose End Fitting for PTFE Hose Only (3/4/6/8/10/12AN) - Black - EVILENERGY[Straight,1PC]
EVIL ENERGY PTFE Hose End Fitting for PTFE Hose Only (3/4/6/8/10/12AN) - Black

Engineered for high-pressure, high-temperature fuel systems, the EVIL ENERGY PTFE Hose End Fitting delivers leak-proof performance for PTFE fuel lines in performance builds, LS swaps, boosted engines, and ethanol-based fuel setups. Made from 6061-T6 aluminum with a 360° swivel design, these AN fittings ensure a clean, secure, and easy-to-assemble connection—ideal for builders who demand durability and precision.

$8.99
$8.99
$0.00
Quick Add
Close
Quick Add
Close
[Black,Without Bracket] black inline evil energy fuel filter with directional arrow and multiple AN fuel line fittingsevil energy fuel filter kit with stainless steel inline fuel filter, AN fittings, and mounting hardware
EVIL ENERGY Inline Fuel Filter with 6AN 8AN 10AN Adapter and Bracket Universal 10/30/40/100 Micron - Black

[Application] Universal fuel filter, includes an6, an8, an10 adapters for different size applications. With mounting bracket keeps the engine bar stylish and clean.

  • [Material] Aluminum alloy fuel filter can and stainless steel filter element.
  • [O-ring] The o-ring provides a tight seal for fittings and end caps.
  • [Function] Can be used for filtering gasoline, diesel, etc. Captures contaminant particles of 10 micron and above to protect the fuel system of the vehicle.
  • [Feature] Removable design, easy to clean or replace filter element at regular time.
  • [Installation Tips] We have debugged the installation direction of the fuel filters before delivery. Please check and ensure the closed end of the filter element docks with the spring. Let the liquid flow following the arrow from the spring end to the other end, and the fuel filter will serve longer.
$23.99
$23.99
$24.99
  • Black
  • Silver Black
  • Blue
  • Red
Quick Add
Close
Quick Add
Close
[20FT] EVIL ENERGY PTFE Fuel Line Kit, complete black hose & fittings set, 180-day return[16FT] EVIL ENERGY PTFE Fuel Line Kit, black braided hose, fittings, free shipping & return
EVIL ENERGY 4/6/8/10AN PTFE Fuel Line Kit | E85 Nylon Braided Hose | 16/20FT Black Black with Comprehensive Fittings

Three-Layer Construction: Our fuel lines are constructed with a triple-layer material for unparalleled performance and protection. The innermost layer is made of PTFE for maximum chemical resistance, a braided stainless steel layer for strength and durability, and an outer nylon layer for added abrasion resistance and protection.

Multiple Sizes: We offer our fuel lines in 4AN, 6AN, 8AN, and 10AN sizes, catering to the diverse needs of various fuel delivery systems.

Fitting Types: Our kit includes a variety of fittings at 0°, 90°, 45°, and 180° angles, ensuring versatility and flexibility during installation, allowing for custom routing in tight or complex spaces.

Precision Fit and Leak-Free Performance: The combination of the PTFE inner layer and the high-quality aluminum hose ends ensures a precision fit and leak-free connection, even under extreme pressure, providing a safe and reliable fuel system.

$62.09
$62.09
$70.99
Quick Add
Close
Quick Add
Close
[20FT] EVIL ENERGY PTFE Fuel Hose Kit, complete black braided hose & fittings set[10FT] EVIL ENERGY PTFE Fuel Hose Kit, complete black braided hose & fittings set
EVIL ENERGY 6AN 3/8-inch PTFE LS Swap EFI Fuel Line Fitting Kit | E85 Nylon Braided Fuel Hose With Fittings 10-26FT

PTFE nylon braided fuel line kit offers superior durability for high-pressure and high-temperature applications, making it perfect for EFI systems, turbo setups, and all automotive fuels.

$76.99
$76.99
$112.49
Quick Add
Close
Quick Add
Close
Filter
  • 10
  • 15
  • 20
  • 25
  • 30
  • 50
  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
Sort

Sort by:

  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
  • [20-75PSI&75-120PSI,Red][20-75PSI&75-120PSI,Blue]
    EVIL ENERGY Fuel System Upgrade Bundle - 300LPH High Flow Electric Fuel Pump, Adjustable AN Fitting Wrench (3-16AN), & 20-140psi Fuel Pressure Regulator
    ---!@!start!@!---Specifications---!@!end!@!--- EFI Bypass Return Adjustable Fuel Pressure Regulator Compatible Systems Most vehicles' Electronic Fuel Injection (EFI) systems Fuel Compatibility Gasoline, E85, alcohol/ethanolNot compatible with diesel fuel; Nylon braided fuel lines not compatible with E85 Pressure Adjustment Range 30-70PSI 20-75&75-120PSI 30-80&80-140PSI Main Fitting Size 30-70PSI:6AN...
    $154.99
    $154.99
    Quick Add
    Close
    Quick Add
    Close
  • [30-70PSI,255LPH Intank][30-70PSI,300LPH External]
    EVIL ENERGY EFI Fuel System Bundle: Universal Fuel Filter, Fuel Pump & Fuel Pressure Regulator

    Note: The color of the filter fittings and filter heads will be shipped randomly.(silver or black)

    $126.73
    $126.73
    Quick Add
    Close
    Quick Add
    Close
  • [Black][Red]
    EVIL ENERGY External Inline Fuel Pump Electric 300LPH High Flow 12V with 60 mm Bracket Clamp Red - Black
    ---!@!start!@!---Specifications---!@!end!@!--- Brand EVIL ENERGY Fitment  fit 12V DC EFI systems only Vehicle Most Car Material Alloy Steel Lift Type Electric Fuel Pump Test Flow  200 LPH (at 75 PSI & 12V) 255 LPH (at 43 PSI & 12V) 300 LPH (43 PSI & 13.5...
    $52.79
    $52.79
    • Black
    • Red
  • EVIL ENERGY 300LPH High Flow External Inline Fuel Pump Kit Universal 12V with AN6 Adapter Fittings & Bracket BlackEVIL ENERGY 300LPH High Flow External Inline Fuel Pump Kit Universal 12V with AN6 Adapter Fittings & Bracket Black
    EVIL ENERGY 300LPH High Flow External Inline Fuel Pump Kit Universal 12V with AN6 Adapter Fittings & Bracket Black

    EVIL ENERGY 300LPH High Flow External Inline Fuel Pump Kit - Power Your Performance

    • High Flow: Delivers an impressive 300LPH at 43 PSI / 13.5V, with a maximum pressure of 75 PSI, ensuring ample fuel supply for high-performance EFI builds.

    • Wide Fuel Compatibility: Works with gasoline, pump gas, race gas, diesel, and alcohol/ethanol — one pump for any fuel strategy.

    • Built to Endure: Constructed from high-grade aluminum alloy, operates reliably from -68°F to 194°F, engineered for extreme conditions.

    • Complete Kit: Includes 1× 300LPH external inline fuel pump, 1× 60mm black mounting bracket, 1× AN6 to 3/8 inch aluminum line fitting kit, 1× M12×1.5 to AN6 adapter, and 1× AN6 to M18×1.5 straight adapter — everything needed for a clean, bolt-on install.

    • Optimal Installation: Best mounted under the fuel tank for efficient, gravity-fed fuel flow. Universal fit with no modification required.

    Maximize your vehicle's fuel efficiency with EVIL ENERGY. Order now for high-performance and reliable fueling!

    $153.99
    $153.99
    $153.99

Related Articles & Videos

FAQs about EFI systems

What is an EFI fuel pump? How is it different from a regular gasoline pump?

An EFI fuel pump (Electronic Fuel Injection pump) is a high-pressure electric fuel pump specifically designed for modern fuel injection (EFI) systems.

The key difference is pressure:

  • EFI Fuel Pumps: Operate at high pressure (typically 43-58 PSI or more) to ensure fuel atomizes correctly through the injectors.
  • Regular Gasoline Pump (Carburetor Pump): Operates at low pressure (typically 5-9 PSI).

You cannot use a low-pressure carburetor pump for an EFI system, or vice versa. They are not compatible.

Yes, it is mandatory. EFI systems (including all LS engines) rely on high-pressure, stable fuel delivery to operate. If you try to use the original low-pressure carburetor pump, your engine will fail to start or will suffer catastrophic damage from leaning out (fuel starvation) under load. A high-performance electric fuel pump is the foundation of a successful EFI conversion.

LPH stands for 'Liters Per Hour'. It's a flow rating that measures how much fuel the pump can deliver. The LPH you need depends on your engine's horsepower (HP). More horsepower requires more fuel, which means you need a higher LPH rating.

  • General Guideline: For most V8 swaps or applications between 250-500 HP, a 255 LPH pump is a common choice.
  • Higher Performance: For forced induction (turbo/supercharged) or engines exceeding 500 HP, you should consider 300 LPH, 405 LPH, or higher EFI fuel pumps.

This depends on your vehicle and application.

  • In-Tank: Mounted inside the fuel tank. This is standard on modern cars as it runs quieter and the fuel helps cool the pump, extending its life.
  • Inline (External): Mounted outside the tank along the fuel line. This type of electric fuel pump is often easier to install and service, especially on older vehicles that were not designed for an in-tank pump or when using a custom fuel cell.

Many of our high-performance EFI fuel pumps are designed to be compatible with multiple fuel types, including E85. However, E85 is more corrosive than standard gasoline. Always check the specific product description to confirm that the model you are interested in is explicitly 'E85 compatible'.

 .

RECENTLY VIEWED PRODUCTS