hi all... can someone please tell me what the fuel pressure should be on a 4x4 cos running 803s... cheers

 

Pretty sure different chip mappers/tuners have different pressures,ring your chip maker and ask

 

i was told that its not very often that the fuel pressure needs adjusting from standard setting when running greens ... dont suppise you know the standard press.. i no one is wit the vaccum pipe on and one taken with it off??

 

whats the measurement that fuel pressure is measured in?

i have a reason for asking, because i might just know the answer from something i've read before

 

vacuumpipe should never be taken off. it compensates fuelpressure with the inlet boost/vacuum pressure. Standard 2wds run about 2.6bar tough i've seen a few with stage3 ahmed bayjoo chip (t34,greens,filter,exhaust,rs500cooler) with pressure adjusted to 3bar.

 

Standard fuel pressure is 3.5bar absolute. (Pipe disconnected)

Check that when you refit teh pipe with engine idling that the pressure drops, and that when you apply pressure to teh pipe the fuel pressure raises 1:1

Only the mapper can advise what presure the chip requires.