e85 + surge tank = FPR ?
Aug 3, 2018, 04:01 PM
#1
Evolved Member
Thread Starter
e85 + surge tank = FPR ?
So I switched over to E85. Wish I did it years ago. But since it required SO MUCH fuel, I need to upgrade my ID1000's to ID1300's and I am building a surge tank. I have the radium fuel pump hanger which provides a small buffer, but not enough. The walbro 255 that is in there can stay on the stock wiring, but once I add another fuel pump that can meet my flow needs (looking at the DW350il) I imagine the OEM fuel pressure regulator and OEM 1/4" return line will be overrun by a hardwired pump of that size.
Is there a way to add a surge tank without upgrading the FPR and return line ?
Is there a way to add a surge tank without upgrading the FPR and return line ?
Aug 6, 2018, 09:11 AM
#3
Is the DW350il going into the Radium hanger or the new surge tank? For the surge tank use a Walbro 450, either the F90000274 or the new F90000285.
Do you have an aftermarket fuel rail? If you don't track your car consider passing on the surge tank and getting the Radium rail and the other pieces of the fuel delivery system including the FPR that mounts directly on their rail, the -8 fuel feed and filter that converts the OEM feed to a return line, the pulse damper, etc. Put a Walbro F90000285 in the Radium hanger with all this and call it a day, until you need 2000 cc injectors or a second pump in the hanger to keep up with all the power you're making.
Do you have an aftermarket fuel rail? If you don't track your car consider passing on the surge tank and getting the Radium rail and the other pieces of the fuel delivery system including the FPR that mounts directly on their rail, the -8 fuel feed and filter that converts the OEM feed to a return line, the pulse damper, etc. Put a Walbro F90000285 in the Radium hanger with all this and call it a day, until you need 2000 cc injectors or a second pump in the hanger to keep up with all the power you're making.
Oct 14, 2018, 12:07 AM
#5
Evolved Member
Thread Starter
Big pump control
Forgot to come back around and close this thread. I ended up making a solid state relay pump controller from Crydom relays. The design is in my build thread linked in my signature. It allows the stock ecu to control the biggest pump you can throw at it. The benefit is keeping the stock control design based on load vs. rpm configurable curve and also any safety features in the oem ecu that might decide to turn off pump (perhaps in an accident). I've been running it for over a month daily with some track passes as well.
