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Stock wastegate pressure

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Old May 6, 2008, 11:25 AM
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Stock wastegate pressure

Does anyone know what pressure the stock wastegate actuator opens at? I'm not asking for the stock boost level. I want to know what pressure the actuator will open at if it had a direct connection with no boost controller being used.
Old May 6, 2008, 06:12 PM
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Your best bet is to test it with a hand pump. I doubt anyone else who posts this kind of info has tested it.
Old Jun 21, 2008, 05:47 PM
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Originally Posted by russya
Does anyone know what pressure the stock wastegate actuator opens at? I'm not asking for the stock boost level. I want to know what pressure the actuator will open at if it had a direct connection with no boost controller being used.
I measured this today, it's roughly 14.0 psi. I'm making another thread in a bit to show pressures after the actuator rod it turned as well.
Old Jun 22, 2008, 05:49 PM
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Originally Posted by evostang
I measured this today, it's roughly 14.0 psi. I'm making another thread in a bit to show pressures after the actuator rod it turned as well.
yes please please some more info would be greatly appreciated
Old Jun 22, 2008, 06:31 PM
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https://www.evolutionm.net/forums/sh...=341540&page=5

All the info is on page 5 and 6 of the above thread.
Old Jun 22, 2008, 06:44 PM
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12psi
Old Jun 22, 2008, 07:12 PM
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following. keep us posted.
Old Jun 23, 2008, 01:33 PM
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Best way to tell is run a small hose right from the turbo nipple to the WGA and go do some pulls and watch your boost gauge. Or just turn your MBC all the way down.
Old Jun 23, 2008, 01:44 PM
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I bench tested it with an air compressor and a pressure gauge. It cracked around 14.0 psi, but I can't gaurantee it's not 13.8 or 14.2 psi, because the gauge resolution isn't fantastic. Pictures and document are in the link I posted above. With a better gauge I can give a more accurate answer.
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