Reverting To Standard Fuel Pressure

[toxsickcity]

Hi,

My friend said to add 0.5-1 BAR to my SARD Fuel pressure reg. as I wanted to run .8-.9 BAR of boost on standard everything!

he said it would protect the engine.. okay, not the issue here!

I wanted to know how I should go back, I understand it as this...

I unplugged the Vacumm hose and left it open? or put a screw into the hose???

anyway i left he hose open. I then turn the regulator screw to 3BAR (44psi)

plugged the vac. hose back in.. and idle sat around 2.5bar!! that worried me a little so I upped the pressure for idle about 2.8-2.9BAR

when I rev the engine it goes up to about 3.4- 3.5

Is it suppose to be 2.5 idle and 3bar under revs OR 3bar idle 3.5bar revving

What are the correct numbers?

Reasons for this.. High fuel consumption and also running low boost of about 0.7..

It was previously at about 3.5bar idle and revved to about 3.9bar a little high dont you think?

[BHDave]

2.5bar base pressure is stock.

so with the vac line off your fuel pressure should be 2.5 bar and less once you hook the vac line back up.

Higher pressure won't be doing anything for you, as the stock ecu will be dumping in extra fuel with extra boost anyway.

[toxsickcity]

2.5bar base pressure is stock.

so with the vac line off your fuel pressure should be 2.5 bar and less once you hook the vac line back up.

Higher pressure won't be doing anything for you, as the stock ecu will be dumping in extra fuel with extra boost anyway.

yeh it was weird.. my EBC is set to sit around .7-.75bar!

when I lowered the pressure it went to .88bar! so that confirms that $%^#ing with the fuel pressure does shit all but makes the top end a little better... but it's well worth gettin a fconv.. that I am in 1 month after I do the twin turbo setup:)

thanks for that!!