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Vt fuel pressure.

Posted: Fri Jan 09, 2015 7:33 pm
by Fireblade.954
Hi guys, basic question.
Is the fuel pressure with or without vacuum?
Eg, 350kpa with or without vacuum on an adjustable pressure reg.
cheers

Re: Vt fuel pressure.

Posted: Fri Jan 09, 2015 7:39 pm
by immortality
3.5bar with no manifold vacuum.

Once the base pressure is set then connect the manifold vacuum source.

Re: Vt fuel pressure.

Posted: Fri Jan 09, 2015 7:42 pm
by The1
it would be without vacuum 350kpa ( 3.5bar - 51psi)

So with vac it would be lower pressure and under boost higher pressure, being differential as it's harder to spray fluid under boost and easier under vac

Re: Vt fuel pressure.

Posted: Fri Jan 09, 2015 7:49 pm
by delcowizzid
for setting adjustable regs start the car and set pressure with vac hose off engine idling

Re: Vt fuel pressure.

Posted: Sat Jan 17, 2015 8:01 pm
by Fireblade.954
Cheers guys