Quote:
Originally Posted by mechman600
That would be bad. Systems with return lines need the flow for cooling and fuel pressure regulating purposes (I think). It probably would not run if you blocked it off, or it would run poorly. New cars do not have return lines, so maybe something could be done there. But I wonder what hot fuel will do to the life of a fuel injector.
I would listen to mwebb - heating fuel will probably have little effect on anything.
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the only thing you could do is move the pressure regulator to the tank, where the pump is (if it is there) . this way you would have one line to fuel rail, dead ended . this still has return line but it is real short, just going into tank .
This is what Honda does in later models . the pump, regulator are all one unit with sender in it .
This would or could have a tendency to vapor lock more than with regulator at rail .