Fore Innovations Level 3 Dual Pump Fuel System (43-623) - Zeta / Sigma II
The Fore Innovations Level 3 Dual Pump Fuel System is a return-style fuel system designed to support 1,000+ RWHP in Zeta / Sigma II applications. Fore recommends running one fuel pump full time and activating the secondary pump under load.
The fuel rails are routed in parallel with the boost-referenced F4i Fuel Pressure Regulator positioned before the rails in a deadhead configuration. The in-tank supply system retains OE tank transfer, fuel level senders, and EVAP functionality while adding upgraded feed and return lines, high-capacity filtration, and an FCV check valve.
E85 Applications
This fuel system can be configured for E85 by selecting F90000267, F90000274, or F90000285 fuel pumps along with microglass SSD or stainless filtration.
Fore Innovations generally recommends its Level 2 or Level 4 systems over the Level 3 configuration for E85 because the engine must be able to start on fuel vapor. Starting the engine on E85 may be challenging with this configuration and requires additional consideration from the tuner.
Included Components
- Dual fuel pump module
- F4i Fuel Pressure Regulator
- 88mm inline fuel filter
- FCV check valve
- 30 feet of fuel line with choice of available fuel line type
- 10 billet compression-style hose ends
- 7 billet low-profile 90-degree AN-to-O-ring fittings
- 3 billet straight AN-to-O-ring fittings
- 3 billet O-ring plugs
- 10 hose straps with stainless mounting screws
- 1 1/8 NPT plug
- Fittings, hose, and hardware necessary for typical fuel line plumbing
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 fuel system and components.
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.
Features
- Supports 1,000+ RWHP when properly configured
- Return-style dual pump fuel system
- Recommended to run one pump full time and activate the secondary pump under load
- Fuel rails routed in parallel
- F4i Fuel Pressure Regulator positioned before the fuel rails
- Deadhead fuel system configuration
- Boost-referenced fuel pressure regulation
- Retains OE tank transfer, fuel level senders, and EVAP functionality
- Includes upgraded feed and return lines
- Includes 88mm inline fuel filter and FCV check valve
- E85 capable with the required fuel pumps and filtration media
- Professional installation and custom tuning required
Fitment
- Zeta platform applications
- Sigma II platform applications
Note: Exact vehicle and model-year compatibility should be verified before ordering.
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
