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Is the side port of a Wastegate supposed to hold pressure?

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Old 12-06-09, 10:04 AM
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Rotary Freak

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Is the side port of a Wastegate supposed to hold pressure?
When I apply pressure to the side port of my 44mm Tial the valve opens at the proper pressure, but then it closes as the pressure is maintained. I found some information that the seal around the valve shaft isn’t supposed to seal perfectly, but what is normal? I would think that in a perfect system, it would not leak any pressure. Are other WGs the same (JGS, Synapse, etc)?
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Old 12-06-09, 10:09 AM
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the side port won't hold pressure but the top port will. My HKS was like that as well as my current Tial 44.
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