Originally Posted By goldduster318
I have an Aeromotive Phantom 340 system, which is basically their 340lph pump, return system - feeds rails then to regulator and the return, -6 (3/8) feed and return. No fuel heating issues or any issues of any kind. Pump is quiet as well. Easily feeds the 470hp engine.

The PWM is wholly unnecessary, its a "cost saving" idea at the OEMs. Even the corvette style one, you could change your fuel filter and the tolerance could jack with your fueling (bad parts out there).

You don't want to PWM just any fuel pump either.

So, In tank pump and return style is what I would recommend anytime.


Trying to understand this, so a low tech return system worked on your low HP ride with no noticeable issues, then you out think an entire industry in your spare time and gratuitously post your conclusions based on this one experience alone potentially misleading countless readers? Interesting extrapolation based on one result. Keep up the good work.

1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)