dusterbd13
02-11-2012, 04:10 PM
ok, so i had origonally not planned on going EFI with my 70 duster build. things and tastes change, and now i AM going EFI.
im debating between in tank or out of tank pump placement. i dont want to buy another new tank, and cannot weld good enough to put a sump in my tank. it is not baffeled, either, so theoretically it would have to be sumped.
that was until i found these:
http://www.autoperformanceengineering.com/html/pickups.html
apparently the rock crawler guys are using one of these in all 4 corners of their fuel tanks, plumbed in series with hardline and very small sections of fuel submersable line (17 a foot at NAPA according to one thread.)
that takes care of the sumping issue roght there.
ill be running 60PSI of rail pressure, using a C5 corvette fuel pressure regulator/filter assembly with the return line built in, and a single feed up tpo my rails. ill be supporting 400 at the rear wheels at the moment, but am planning 6PSI of boost from a centrifugal supercharger later on down the road.
so now my debate is about wether to put the pump in the tank like a stock EFI application, or run a rail mounted external pump. currently, i have a holley blue pump mounted acternally, and truly, truly hate it. with a passion. its really loud. will an aftermarket EFI pressure poump be the sanme? will it starve being siphon fed at my power levels? will it overheat and die quickly due to the pressure and supply demand?
this is a car that gets a LOT of street miles, and quite a few track miles (autocross and open).
if an intank would be preffereable, how would i go about getting it in there without cutting or welding the tank? how would i hook up the pickups to it?
lots of questions, a half baked plan, and searching for experience and advice. please help.
michael
im debating between in tank or out of tank pump placement. i dont want to buy another new tank, and cannot weld good enough to put a sump in my tank. it is not baffeled, either, so theoretically it would have to be sumped.
that was until i found these:
http://www.autoperformanceengineering.com/html/pickups.html
apparently the rock crawler guys are using one of these in all 4 corners of their fuel tanks, plumbed in series with hardline and very small sections of fuel submersable line (17 a foot at NAPA according to one thread.)
that takes care of the sumping issue roght there.
ill be running 60PSI of rail pressure, using a C5 corvette fuel pressure regulator/filter assembly with the return line built in, and a single feed up tpo my rails. ill be supporting 400 at the rear wheels at the moment, but am planning 6PSI of boost from a centrifugal supercharger later on down the road.
so now my debate is about wether to put the pump in the tank like a stock EFI application, or run a rail mounted external pump. currently, i have a holley blue pump mounted acternally, and truly, truly hate it. with a passion. its really loud. will an aftermarket EFI pressure poump be the sanme? will it starve being siphon fed at my power levels? will it overheat and die quickly due to the pressure and supply demand?
this is a car that gets a LOT of street miles, and quite a few track miles (autocross and open).
if an intank would be preffereable, how would i go about getting it in there without cutting or welding the tank? how would i hook up the pickups to it?
lots of questions, a half baked plan, and searching for experience and advice. please help.
michael