Returnless Pulse Width Modulation Kit, Ford Gt500 Fuel Module
Returnless is how every modern car does it. Now your build can too. A return line is one more thing to route; one more thing to leak; one more pass through a firewall you already fought once. Every OEM walked away from it years ago; including on the highest horsepower cars they build. The injector has no idea whether the fuel behind it came from a return system or a returnless one. This is the GT500 fuel module control system; complete and stand-alone. Pair it with the low-cost Ford/Motorcraft PFS1314 module and you get 42-60 psi base pressure with a 1:1 manifold referenced rise for up to 25 psi of boost. It behaves exactly like a manifold referenced mechanical regulator; the ECM gets tuned the same way. What makes it simple is the stand-alone manifold pressure sensor. Run a hose from the sensor mount to the intake manifold; set your base pressure; done. No relays; no external regulator; no return line. It also cuts fuel pump power at least 50 percent at idle and cruise versus a traditional system. Quieter pump. Cooler fuel. Less work for everything downstream.
Install Level: Advanced
Aeromotive 66133. Legacy VaporWorx part number BWGT500.
Requires the Ford/Motorcraft PFS1314 fuel module; not included.
Manifold referencing is mandatory - the pressure sensor must be plumbed to the intake manifold.
No relays; external regulators or return lines needed.
Integrates into the OE ECM so all safety systems stay functional.
Aeromotive Part Number: 66133
Legacy VaporWorx Part Number: BWGT500
The Ford Mustang GT500 fuel module control system has everything needed to provide a stand alone, manifold referenced, OE-type returnless fuel system.
When used with the low-cost Ford/Motorcraft PFS1314 fuel module the system will provide a 42-60psi base pressure with a 1:1 manifold referenced fuel pressure change for up to 25psi of boost. It will act just like a mechanical fuel pressure regulator would with the ECM tuned in the same manner. The fuel injector does not know if the fuel supplied is pumped by a return or returnless system. Every OEM today, even on the highest horsepower models, use returnless PWM control systems.
The key to making this system simple to use is the stand-alone manifold pressure sensor that tells the controller how to adjust the fuel pressure.
Just like a manifold referenced mechanical fuel pressure regulator, simply connect the hose from the pressure sensor mount to the intake manifold, set the fuel pressure according to the need, and you're done. Base fuel pressures at idle are typically between 42-60psi, but the VaporWorx controller has much greater range if needed.
The controller can also be used with any engine that needs to have a separate MAP sensor for manifold referenced fuel pressure. The kit is tailored to fit the PFS1314 fuel module by using the OEM Delphi/Aptive connector and terminals.
The fuel requirements for all versions of the Ford Controls Pack for the Coyote crate engine can be met with the BoostWorx GT500 controller and PFS1314 fuel module.
Suggested fuel modules:
- Any Gen1-3 Ford Controls Pack equipped application using the GT500/Motorcraft PFS1314 fuel module. Will work in both naturally aspirated and supercharged applications for any EFI application using the GT500/Motorcraft PFS1314 fuel module. Manifold referencing mandatory.
NOTE: The Ford Controls Pack for Coyote engines states that a return-type regulator is to be used. This is for two reasons: 1) The fuel pressure must be manifold referenced, and 2) The Ford Controls Pack does not come with a Fuel Pump Driver Module like the modern cars do. The BoostWorx controller does have manifold referenced fuel pressure capability, hence the system will be providing fuel very much the same way as the OEM car. Ford just does not know about VaporWorx since we are the only company to offer a stand-alone electronic returnless fuel system. In other words, no worries!
This Controller includes these standard features:
- Everything needed electrically to drive the fuel pump module. No relays, external regulators, or return lines needed.
- Unmatched low fuel level capability when combined with the OEM style fuel module.
- A minimum 50% reduction in power to the fuel pump during idle and cruise vs traditional systems.
- 40A minimum continuous power rating in a compact controller package. Total size 4" L x 2.1" W x 1-5/8" H.
- Over-temperature shutdown with automatic reset.
- Short circuit protection that will operate indefinitely without damage.
- OEM Delphi/Aptiv connections for terminals, seals, and connector bodies.
- All cross-linked polyethylene wiring.
- UL94 rated components used throughout.
- Integrates into the OE ECM to allow all safety systems to remain functional.
- 10-22v operating capacity. Can be used with voltage boosters. Lower than 10v applied to the turn on circuit will cause controller shutdown to protect from an AFR lean condition.
Legacy VaporWorx part number BWGT500
Stand-alone manifold referenced OE-type returnless fuel system controller
Base fuel pressure 42-60 psi at idle; controller range extends beyond that
1:1 manifold referenced fuel pressure rise for up to 25 psi of boost
Stand-alone manifold pressure sensor with mount included
40A minimum continuous power rating
Controller size 4 inch L x 2.1 inch W x 1-5/8 inch H
10-22v operating capacity; can be used with voltage boosters
Below 10v on the turn on circuit shuts the controller down to protect against a lean AFR condition
Over-temperature shutdown with automatic reset
Short circuit protection that operates indefinitely without damage
OEM Delphi/Aptiv connector bodies; terminals and seals
All cross-linked polyethylene wiring
UL94 rated components throughout
Minimum 50 percent reduction in fuel pump power at idle and cruise versus traditional systems
Integrates into the OE ECM so safety systems remain functional
Tailored to the Ford/Motorcraft PFS1314 fuel module
Any Gen 1-3 Ford Controls Pack equipped application running the GT500/Motorcraft PFS1314 fuel module; naturally aspirated or supercharged.
Any EFI engine that needs a separate MAP sensor for manifold referenced fuel pressure.
Manifold referencing is mandatory.
