Trying To Run Higher Boost Not Going Up.

[ryan_o_grady]

Hey all kind of an annoying problem.

I have a GCG highflow 33 turbo on an RB20 with stock ecu.

I have GFB atomic bleed valve.

Problem just wanted to check the boost before I put new Power FC and injectors in.

I want to run 16psi when tuning in couple of weeks.

Car is running 12psi currently but when i went to wind out the bleed valve today nothing.

No further increase be it from 1 turn or 10 turns.

Is this something to do with stock comp, turbo, or should I just get an elec. boost controller.

Main question is do people think turbo isnt able to produce more than 12psi?

Thanks any info would be great.

[SXR]

check if the hose is connected the right way.

You also probably can't go much higher with stock ecu

[Roy]

Did you install the in line restrictor?

[ryan_o_grady]

Hey it is connected the right way ive had it on there for over a year now.

No i do not have a restrictor just the bleed valve between actuator and comp cover. Im sure the GFB bleed valve has a restrictor in it?

[race_snooze]

i have the same problem but in reverse i cant bring boost down, i would say the bleed valve is stuffed.

[mad082]

it could just be sticky. my controller stuffed up one day and i couldn't go above 11psi. i took it apart, gave it a spray with degreaser, put it back together and it works fine now.

[Roy]

From the few i have played with they still work better if you have an orifice in the line leading to them

[Revhead]

The stock ECU might have a fuel/ignition cut when boost goes above 12psi.

You can always disconnect and block your wastegate line to rule out boost controller issues, but as you're no doubt aware this CAN destroy your turbo and/or engine if you don't keep an eye on the boost guage.