Quote:
Originally Posted by Tate
Excess fuel cools the pump. Returnless fuel system means poor cooling.
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It's not truly returnless. With the pwm regulator you can have it still push plenty of fuel to have a good amount of return flow it just knocks down the pump in cases like mine where I have way more fuel moving than I need. Normal regulator in the feed side would work just fine but I like the idea of varying the pump a little so it has a longer life