Fuel return line

[Evert Rosseel]

> I was flipping through some of my older magazines and I came across 
> an article about a guy who put a Ford 5.0 EFI engine in his Mustang 
> II.  What got me curious is the fact that he did not fabricate a 
> typical fuel return line.  His return line, instead of going back to 
> the tank, went to some fuel distribution block that also had ports 
> for the fuel coming from the tank and going to the engine.  There 
> weren't any pictures or more details as far as locations.
> 
> Anything inherently wrong with this?  Or is the return line to the 
> tank the only way to go?
> 

The problem with this is that the return fuel is relatively hot, as 
it was heated by the injection system (fuel is used as a coolant for 
some components). Therefore a heat exchanger too cool the fuel is 
necessary, otherwise problems with vapor lock are to be expected.

Evert
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*    Dr. ir. Evert Rosseel                                             *
*    Laboratory for Machines                                   *
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