Returnless Pulse Width Modulation Kit, Zl1 Fuel Pump Module
Every OEM on the road runs returnless. There is a reason. A traditional return system pumps at full tilt all the time and sends what the engine does not burn back to the tank; hot. This controller does what a factory ECM does: it modulates the pump to hold your target pressure and nothing more. Up to two thirds less power draw at idle and cruise; and a tank that stays cooler. It runs the GM-compatible modules people actually use - Gen5 and Gen6 Camaro OEM modules; the Aeromotive Super ZL1; Gen3 CTS-V3; C7 Corvette; GM late model truck modules with brushed pumps. No Hobbs switches. No relay board you built on the bench. Everything electrical needed to drive the module is in the kit. Set it for constant pressure and leave the MAP hardware in the box. Or connect the supplied MAP sensor to the manifold and get 1:1 manifold referenced pressure; the way a mechanical regulator behaves. If a blower is in the plan later; the upgrade path is already in the kit. Over-temperature shutdown with automatic reset. Short circuit protection. Delphi and Aptiv terminals; seals and connector bodies. Cross-linked polyethylene wire. UL94 rated components throughout. 40A continuous in a package 4.5 inch by 3.5 inch by 2 inch. One warning worth reading twice: do not put an inline filter downstream of an OEM module.
Install Level: Professional
Do not use an inline fuel filter with OEM fuel modules except the Gen3 Coyote GT500. Final filtering is built into the module and some aftermarket filters contain a check valve that can cause heat-soak overpressure and lock up port injectors.
The ECM must be calibrated as it would be for a traditional return or deadhead return system.
Aeromotive part number 66136. Legacy VaporWorx numbers BWZL13B; PWZL13B-G8; BWCOYOTE-ZL1 and PWZL13B all refer to this system.
Fuel pump module is not included.
Aeromotive Part Number: 66136
Legacy VaporWorx Part Numbers: BWZL13B, PWZL13B-G8, BWCOYOTE-ZL1, PWZL13B
This fuel module control system has everything needed to provide a stand-alone, OE-type returnless fuel system with constant or manifold referenced fuel pressure.
For constant fuel pressure simply leave the MAP sensor portion of the kit disconnected. Thinking about going supercharged someday? You will be ready to go by installing the MAP sensor components, so the upgrade pathway is easy.
When used with the popular and affordable GM Gen5 ZL1 Camaro, C7 Corvette, Aeromotive Super ZL1, and many other GM compatible fuel pump modules, this system will provide constant pressure or any base pressure with a 1:1 manifold referenced (supplied MAP sensor based) fuel pressure. It will operate like a mechanical fuel pressure regulator would with the ECM calibrated the same way. 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.
If manifold referenced fuel pressure is needed simply connect the supplied stand-alone MAP sensor to the pressurized side of the intake manifold, just like connecting a boost gauge or manifold referenced fuel pressure regulator.
Suggestion: If your car is properly running with a constant fuel pressure ECM calibration, then changing to MAP referenced fuel pressure is usually not needed or worth the extra expense to recalibrate the fuel maps in the ECM. Just leave the controller MAP wiring/sensor/mounting bracket disconnected.
Base fuel pressures at idle are typically between 42-60psi, but the VaporWorx controller has much greater range if needed.
For a constant fuel pressure system a 42-60psi pressure is typically used, so do not use the supplied MAP sensor wiring, sensor, or mounting bracket. For supercharged applications manifold referenced fuel pressure is often needed.
Aeromotive recommends using a MAP referenced fuel pressure on large fuel injected systems to allow injector duty cycles to be increased at idle/cruise, hence allowing greater injector duty cycle calibration capability. MAP referenced fuel pressure also reduces the at idle/cruise power requirements by approximately 2/3 vs. traditional return type fuel systems.
It is strongly suggested to NOT use an inline filter with OEM fuel modules except Gen3 Coyote GT500. Final filtering is built in. Some aftermarket fuel filters have a built-in check valve which will cause a heat-soak related overpressure condition that will lock up port type fuel injectors.
This fuel pump module Controller system includes these standard features:
- Everything needed electrically to drive the fuel pump module. No Hobb's switches, relays, etc. are needed.
- Unmatched low fuel level capability.
- Up to 2/3 reduction in power to the fuel module during idle and cruise vs traditional systems.
- May be used with the following pumps:*OEM fuel pump modules from any Gen5 or Gen6 Camaro*Aeromotive Super ZL1 (Need link 68101)*Gen3 CTS-V3*C7 Corvette*GM late model truck fuel modules with brushed fuel pumps.
- 40A minimum continuous power rating in a compact controller package. Total size 4.5" L x 3.5" W x 2" H.
- Over-temperature shutdown with automatic reset that will operate indefinitely without damage.
- Short circuit protection that will operate indefinitely without damage.
- OEM Delphi/Aptiv connections for terminals, seals, and connector bodies where appropriate.
- 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.
- Can be used in constant or manifold referenced fuel pressure modes. Manifold referenced suggested to further reduce electrical demand and for vehicles with large, 80#/hr+, injectors.
The ECM fuel injector/DI calibration will need to be set as it would be for a traditional full or deadhead return fuel system. Disconnecting the OEM FSCM (if applicable) and routing its trigger/turn on wire from the ECM to the VaporWorx controller turn on/off circuit has shown to work well.
Legacy VaporWorx part numbers: BWZL13B; PWZL13B-G8; BWCOYOTE-ZL1; PWZL13B
Function: stand-alone OE-type returnless PWM fuel pump module control with constant or manifold referenced pressure
Current rating: 40A minimum continuous
Controller size: 4.5 inch L x 3.5 inch W x 2 inch H
Operating voltage: 10-22v; may be used with voltage boosters
Typical base fuel pressure at idle: 42-60 psi; controller range exceeds this
Power reduction: up to 2/3 less power to the module at idle and cruise versus a traditional return system
Protection: over-temperature shutdown with automatic reset; short circuit protection; both operate indefinitely without damage
Low voltage protection: below 10v on the turn-on circuit the controller shuts down to prevent a lean AFR condition
Connections: OEM Delphi/Aptiv terminals; seals and connector bodies where appropriate
Wiring: all cross-linked polyethylene
Components: UL94 rated throughout
ECM integration: integrates into the OE ECM so all safety systems remain functional
Included: MAP sensor; MAP wiring and mounting bracket for manifold referenced operation
Compatible modules: OEM modules from any Gen5 or Gen6 Camaro; Aeromotive Super ZL1 (68101); Gen3 CTS-V3; C7 Corvette; GM late model truck fuel modules with brushed pumps
Listed price 597.35 USD
Works with OEM fuel pump modules from any Gen5 or Gen6 Camaro; the Aeromotive Super ZL1 (68101); Gen3 CTS-V3; C7 Corvette; and GM late model truck fuel modules with brushed fuel pumps.
Provides constant fuel pressure or 1:1 manifold referenced pressure using the supplied MAP sensor.
The ECM fuel injector or DI calibration must be set as for a traditional full return or deadhead return system.
