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Boost issues i need solved before tuning.

Old Feb 25, 2009 | 03:34 PM
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Boost issues i need solved before tuning.

So ok, I'm not getting any boost until about 5k. I think my charge control valve is sticking open, but my engine builder seems to be positive its caused by the Apexi AVC-R, what do i do, i'm on borrowed time here, i have to tune this thing soon because my FC died on me.
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Old Feb 25, 2009 | 04:11 PM
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From the FAQ thread:
http://www.autosportracetech.com/RX-...erOverview.htm

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Old Feb 28, 2009 | 06:09 AM
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Originally Posted by staticguitar313
So ok, I'm not getting any boost until about 5k. I think my charge control valve is sticking open, but my engine builder seems to be positive its caused by the Apexi AVC-R, what do i do, i'm on borrowed time here, i have to tune this thing soon because my FC died on me.
Remove the boost controller solenoid. Cap the back nipple on the actuators, leaving a line direct from the compressor nipples to the actuator. No restrictors.

You should get a solid 7-8psi across the board. If not, it's something like the CCV. If you get 7psi, it may well be the AVC-R.

You can drive indefinitely on wastegate spring pressure.

Dave
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Old Mar 11, 2009 | 02:01 AM
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seems to be between 7-8psi, I'll disconnect the boost controller from the system and see what happens. Twins are poopy when you have to troubleshoot them. Once the AVCR is out of the equation, if its still doing this, i'll know its my CCV
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