one thing ive noticed when playing with boost settings is that even when the boost is set on a rpm and pwm based map the bosst will go up and down 1, 1.5 psi . Is this down to the amual valve having a littile trouble controling the preasure if so would i be able to stop this with air injectors

cheers jay

 

bttt

 

afaik, wouldn't really be much different. even with air injectors, unless you have closed loop boost control, you are still running them on a map of rpm vs. pwm. they might be more consistent for a given temperature and boost level, but if the ambient changes i think that boost could still change with it. i'm no expert though, so would like to hear from others.