fuel pressure regulator

[cortinasgoneforaburton]

Help me out here guys a couple of my mates say i need to put a fuel pressure regulator on my cortina its running twin 40 dellortos and fuelled by an electric pump its lively and it doesnt hesitate when i floor it so do i really need a regulator???????

[Fiesta Steve]

I have used a mechanical pump and a low pressure (4psi) electric pump on my Crossflow with 45's with no regulator with no problems.

 

Provided the fuel pump is low pressure, preferably not more than about 4 psi you should have no problems.

 

Having said that I would rather use one than not use one

[rallyesport04]

you will find it wont hesitate the problem is sitting in traffic for long periods ticking over the fuel pressure can overcome the stop valve(needle) an the revs will rise on its own the only way to over come this is rev it a bit in traffic then everyone looks at you funny or fit a regulator