Do not use with pre 1999 ECU
750+ rwhp capable returnless fuel system. The feed line is split by our compact y-block, then fed to the back of both rails. High performance Walbro (TI Automotive) fuel pumps can be calibrated to work seamlessly the original PWM fuel pump control system. Upgraded electrical system and upgraded Fuel Pump Driver Module (FPDM) is not included and may be required.
- Fuel rails routed in PARALLEL
- Requires modified or second FPDM
INCLUDES:
- SN95 Fuel Pump Module (dual pump)
- 88mm Inline Fuel Filter
- Compact Billet 2-1 o-ring Y-block
- SN95 2V Billet Fuel Rails
- All fittings, hose, and hardware necessary to complete typical fuel line plumbing:
-20 feet of fuel line and 8 matching hose ends
-Qty 5, AN to o-ring straight fittings
-Qty 3, AN to o-ring 90 degree low profile fittings
-Qty 6, hose straps with stainless mounting screws
-Qty 2, 1/8 NPT plugs
FAQS:
Can 405 lph or 465 lph pumps be operated in a returnless configuration?
No, the pumps' minimum output is too much supply for idle/cruising. (two pumps) We do not recommend running anything larger than the F90000265 (305lph) fuel pumps in this configuration.
Do you sell upgraded FPDMs?
No, a second Fuel Pump Driver Module (FPDM) and pigtail harness can be purchased from Ford. Some of our customers use our FC2 controller as a power supply for twin FPDMs.
How much power can be made in a PWM (returnless) configuration?
We have supported over 1000 rwhp in a PWM configuration, but we generally set the limit around 700-750 rwhp (gasoline applications, lower for E85) for driveability. Due to the fact that "electronic returnless" is a reactive fuel system (it is always a step behind the motor demand) it generally cannot adequately keep up with the severe demand transients that modified motor requires.
