boost playin up...

[h3ppy]

strange one this....

basically my car was boosting to 10 psi so i wanted to adjust it 12 psi. simple job....i adjusted the actuator a few turns in the way(shortening the arm, its a hks actuator) and took it for a run. the first thing i noticed was that that the vacuum pressure was dropping to -30 on idle. then wen i boosted i only got 5 psi??

i put the actuator back to how it was set before and nothing changed. randomly tho last night it decided it was going to boost to 9 psi with the vacuum only dropping to -25?

any ideas wat could dbe wrong, i have changed nothing apart from the actuator.

cheers

 

[CMR]

When you say you adjusted the actuator, did you undo the nut and twist the end, or twist the whole arm?

 

[h3ppy]

undone the nut and twisted the end, not the arm, thats bad..

if i had done that i could understand but it was all done correctly i believe.

 

[chinesemafia]

im having that same issue with th stock actuator my car only boost to 5 psi

 

[h3ppy]

im goin to play wit it tonight, see wat i can find. sounds like an inlet leak from wat i have been told, could just be coincedence it happened at the same time!

 

[CMR]

Well theres a chance that when you upped the boost on the actuator the extra pressure has loosened a pipe on the fmic.
Is there a high pitch noise when you boost or is the boost alot less in higher gears, if so double check all your joins + clamps