~Help boost spike 15psi with hallman boost controller!~
07-24-05, 08:01 PM
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~Help boost spike 15psi with hallman boost controller!~
I just installed a Hallman pro rx boost controller to control my primary boost which was spiking at 12psi with the mods listed below. And I used a holley carb jet pill(0.65) to control the secondary turbos. Then I took the car for a drive, I was trying to see my boost pattern and the gauge read 15psi as soon as that it hit fuel cut. I made sure that the boost was turned down all the way - on the controller and still it spiked 15psi. I also capped off the two nipples on the rail and the ones on the bottom. Why is it doing this?
Thanks,
Eric
Thanks,
Eric
07-24-05, 08:12 PM
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????
If I'm understanding you right, you put the Hallman controller in the pre-control line and a smaller pill in the wastegate line? Why would you do this? If the pre-control is completely closed, you will get very high primary boost.
Put the pre-control pill back in and install the Hallman on the wastegate line.
If I'm understanding you right, you put the Hallman controller in the pre-control line and a smaller pill in the wastegate line? Why would you do this? If the pre-control is completely closed, you will get very high primary boost.
Put the pre-control pill back in and install the Hallman on the wastegate line.
07-24-05, 11:27 PM
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Maybe a silly question, but the nipples you capped... Did you cap the nipples on both actuators? If that's the case, then the pre-control will never open and all exhaust goes to the primary. Also, you might want to check that you didn't accidentally close the boost controller, instead of opening it.
07-25-05, 01:33 AM
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As above....
You should not be capping off the pre-control!
Put the pre-control back to stock and try tuning your boost with the Hallman on the wastegate line. If you are still having pre-control issues (excessive dip/spike at transition), THEN start changing pill sizes in the pre-control. But you must not be blocking off the pre-control!
You should not be capping off the pre-control!
Put the pre-control back to stock and try tuning your boost with the Hallman on the wastegate line. If you are still having pre-control issues (excessive dip/spike at transition), THEN start changing pill sizes in the pre-control. But you must not be blocking off the pre-control!
07-25-05, 10:33 AM
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If you're using two boost-controllers, then you would cap of both the nipples.
But in this case only one controller is used on the WG, and a pill is replaced for the PC. Nothing else associated with the PC should be altered.
But in this case only one controller is used on the WG, and a pill is replaced for the PC. Nothing else associated with the PC should be altered.
