Fore Innovations Level 1 Dual Pump Fuel System (42-821) - 2018-2026 Mustang GT
Upgrade your 2018-2026 Mustang GT with the Fore Innovations Level 1 Dual Pump Fuel System. Designed to support up to 800 RWHP on gasoline or race gas, this return-style system supplies the factory High Pressure Fuel Pump (HPFP), port injection, and small wet nitrous applications while retaining the OE fuel rails.
The dual pump system is designed to run one fuel pump full time with the secondary pump activated under load. It includes an in-tank supply system that retains OE tank transfer, fuel level sender, and EVAP functionality, along with upgraded feed and return lines, high-capacity filtration, an FCV check valve, and a flow-through T-block that mounts directly to the HPFP inlet tube. The F2i Fuel Pressure Regulator can be configured for static or boost-referenced operation.
Fuel System Configuration
- Supports up to 800 RWHP on gasoline or race gas
- Dual fuel pump configuration
- Supplies the OE High Pressure Fuel Pump (HPFP)
- Supplies port fuel injection
- Supports small wet nitrous applications
- Uses the OE fuel rails
- Single F2i Fuel Pressure Regulator
- Retains OE tank transfer, fuel level sender, and EVAP functionality
E85 Note: This fuel system is not recommended for E85 due to limitations of the OE fuel rails. Fore Innovations recommends an L1E or L2 fuel system for E85 applications.
Included Components
- S550 Mustang dual fuel pump module
- F2i Fuel Pressure Regulator, configurable for boost-referenced or static operation
- 88mm inline fuel filter
- FCV check valve
- T-block for direct mounting to the High Pressure Fuel Pump inlet
- 30 feet of fuel line with choice of available fuel line type
- 10 billet compression-style hose ends, including 6 straight and 4 90-degree ends
- 5 billet low-profile 90-degree AN-to-ORB swivel fittings
- 2 billet straight AN-to-ORB fittings
- 1 3/8 EFI female to ORB-10 male adapter
- 2 3/8 EFI female to AN-8 male adapters
- 1 ORB-8 plug
- 10 hose straps with stainless mounting screws
- Fittings, hose, and hardware required for typical fuel line plumbing
Fuel Pressure Settings
- Static fuel pressure regulation: Fuel pressure must be set to 43 psi plus maximum boost, or 54 psi, whichever is greater.
- Manifold-referenced fuel pressure regulation: Set fuel pressure to 54 psi with the primary fuel pump activated. The boost signal is taken after the throttle body.
- Boost-referenced fuel pressure regulation: Set fuel pressure to 54 psi with vacuum off. The boost signal is taken before the throttle body.
- Fore Innovations recommends an L1E or L2 fuel system for operation outside these parameters.
Installation Notes
Professional installation and a custom tune are required. Qualified installers and tuners must be able to interface with the OE harness and FPDM, understand proper component placement and hose routing, and provide factory-like pump prime and on/off operation without error codes.
Fore Innovations provides basic system schematics, detailed component-level instructions, and assistance with troubleshooting the performance and function of its system and components. Fore Innovations does not provide assistance with ECU integration, tuning, or elimination of alarm codes or check engine lights.
High-output fuel pumps generate substantially more heat than the factory fuel pump, while the composite fuel tank can insulate and retain this additional heat. The shape of the factory fuel tank also limits fuel pickup capacity. More fuel than normal must be kept in the tank at all times to help minimize heat-related damage and maintain adequate fuel pickup.
Fitment
- 2018 Ford Mustang GT 5.0L V8
- 2019 Ford Mustang GT 5.0L V8
- 2020 Ford Mustang GT 5.0L V8
- 2021 Ford Mustang GT 5.0L V8
- 2022 Ford Mustang GT 5.0L V8
- 2023 Ford Mustang GT 5.0L V8
- 2024 Ford Mustang GT 5.0L V8
- 2025 Ford Mustang GT 5.0L V8
- 2026 Ford Mustang GT 5.0L V8
Note: This system is designed for gasoline or race gas and is not recommended for E85. For E85 applications, use the appropriate Fore Innovations L1E or L2 fuel system.
Available Options and Upgrades
Electrical Options
- None: Base module configuration with approximately 6"" of fuel pump power wire extending from the hermetic seal.
- FC2 Controller with 6-Gauge Wiring: Operates both pumps simultaneously using factory control. Best for two smaller street-duty pumps or two large pumps in track applications where increased fuel heat is less of a concern. Can control secondary pumps on a triple-pump module when a small primary pump is powered by the OEM harness. Includes 14' of 6 AWG power wire, 100-amp fuse, 3' ground wire, 7' 12 AWG pump leads, and sealed Delphi connector.
- FC3 Staged Controller with 4-Gauge Wiring: Independently controls the secondary pump(s) from the primary pump using factory control plus a secondary trigger. Recommended for two or three large pumps in street applications to help minimize fuel heat. Includes 14' of 4 AWG power wire, 100-amp fuse, 3' ground wire, 7' 12 AWG pump leads, and sealed Delphi connector.
- Delphi Connector / Pigtail Only: Includes a sealed Delphi connector and 7' of 12 AWG pump leads. Installer is responsible for supplying and properly configuring the required fuses and relays.
Filtration Media
- Cellulose: 10-micron nominal / 14-micron absolute disposable element with aluminum endcaps and Viton O-ring. For gasoline and race gas. Recommended for Injector Dynamics injectors.
- Microglass SSD Anti-Static: 12-micron absolute disposable, static-dissipating element with aluminum endcaps and Viton O-ring. Compatible with gasoline, race gas, E85, E100, M5, diesel, and other fuel blends. Recommended for Injector Dynamics injectors.
- Stainless: 10-micron nominal / 26-micron absolute reusable stainless element with stainless endcaps and Viton O-ring. Compatible with gasoline, race gas, E85, E100, M5, diesel, and other fuel blends.
Fuel Filter Upgrades
- 128mm Filter: Upgrades the standard 88mm filter to a larger 128mm filter for increased filtration capacity and longer service intervals.
- Billet Mounting Bracket: Provides a secure, show-quality underbody filter installation while keeping the filter accessible for maintenance.
- Filter Monitoring Gauge and Fitting: Monitors fuel pressure before the filter to help identify restriction. Increasing pre-filter pressure can indicate a clogged filter, which can reduce pump performance, shorten pump life, and increase fuel temperature. Includes a fitting for proper gauge orientation.
Additional System Options
- Honeywell Pressure Switch for FC3: 1/8"" NPT male pressure switch designed for installation in the intake manifold. Must receive both boost and vacuum signals.
- Boost / Vacuum Manifold Kit: Includes Fore Innovations Boost / Vacuum Manifold, three 1/4"" barb fittings, and four plugs.
Fuel Pump Warranty:
We take great pride in our product line since we design, machine, assemble, and package our products entirely in house. We guarantee our products to be free of defects in materials and workmanship to the original purchaser. Due to the highly technical nature of our products, we recommend only experienced and competent individuals and shops install our products and systems.
We cannot accept returns on injectors or pumps that have been in contact with fuel.
Fore Innovations, LLC does not warranty any product that have been damaged or rendered defective as a result of accident, misuse, or abuse. Additionally, Fore Innovations is not responsible for special, incidental, or consequential damages or costs incurred due to the installation, use, or misuse of our products.
We will gladly refund any parts that are received in new resalable condition and accompanied with a Return Authorization Number to the original purchaser. Fore Innovations will not be responsible for any items sent to us without a Return Authorization Number.
TI Automotive (and Walbro) fuel pumps are sold only with TI Automotive’s warranty. Currently, TI Automotive does not have a warranty on their high performance parts. For more information:
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
