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Tial wastegate/hallman pro mbc

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Old May 22, 2011 | 01:11 PM
  #1  
sleeper04's Avatar
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Tial wastegate/hallman pro mbc

heres my problem i have a tial 38mm wastegate with a bb6262 running a hallman pro mbc. i have put new vacuum lines on it made sure the fittings were tight. But the wastegate will not open, i also have hooked the gate up direct line pressure and it opens fine so i know the gate isnt stuck. Any help would be great havent tried another mbc yet that is my next option.
Old May 22, 2011 | 01:59 PM
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have you taken the hallman apart?

What spring are you running in the hallman?

What spring are you running in the tial?
Old May 22, 2011 | 02:41 PM
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stiff spring in the MBC and a big blue spring in the tial, i have had the hallman apart and everything looked fine.
Old May 22, 2011 | 02:50 PM
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Post up how you have the vacuum lines.
Old May 22, 2011 | 09:43 PM
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the bottom of the mbc going to the compressor housing of the turbo-----the side port goin to the tial wastegate (side port and the top port is vented)
Old May 23, 2011 | 07:21 AM
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Originally Posted by sleeper04
the bottom of the mbc going to the compressor housing of the turbo-----the side port goin to the tial wastegate (side port and the top port is vented)
that is correct for hookup, what size ID lines are you running?
Old May 23, 2011 | 10:28 AM
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i have tried 2 different size lines, one that was very hard to get on the tial fittings, and the other that fits alot better but still snug also tried putting clamps on everything. I have tried 3 manual boost controllers and ecu controlled boost all with the same result. im stumped on this one
Old May 23, 2011 | 01:27 PM
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Remove the line from the compressor housing!!! Hook your pressure source to the intake manifold. I have always had weird problems when i use the compressor housing for my pressure source.
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