what should my fuel pressure be on a turbo honda CRX ZC running under 10 PSI boost...also how precise does it need to be?
thanks in advance....

 

depends on the setup, are you running an fmu or hondata ?........inline fuel pump, intank fuel pump?.....theres 2 pressures i look at since i run an inline fuel pump with a gsx intank pump and an fmu,the pressure being pumped by the intank pump, and the pressure at the rail... my pressure after the filter is about 60, my pressure at the rail under boost is over 120 cause of the inline fuel pump and fmu doing there job, ..it all depends man, tell us your setup and im sure youll get more responses........

 

my setup is a D series honda engine (ZC) with T25 turbo 450cc DSM's the SAFC hack. I have a B&M fuel pressure regualtor, standard fuel pump althoguh i have a Walbro 255lph just not installed it yet. My fuel pressure is reading about 40PSI... is this too low?

 

~40 psi is fine. that's with the vac line connected right.

platinum

 

yeah thats with the vac connected, should i bother to install my walbro fuel pump?