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8psi wastegate spring only boosting to 4psi :@ HELP


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I have an external wastegate set up with screamer. I'm meant to be running spring pressure which is an 8psi spring I'm getting a ebc soon. What sort of things am I meant to be checking? I might add that the wastegate opens at like 4.6psi and there you get the scream :S Just out of curiosity where so people run the vacuum line for their boost gauge? Help would be much appreciated!!


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My boost gauge is t-pieced off the map sensor. Have you got the vac hose connected to the turbo housing then to the side port of the wastegate?

May be a stupid question but where is the map sensor? Yeah I've got that pipe on

when u fitted the wspring u mightent off sealed it propper and have a small leak ???

I haven't opened it the spring was in from new :)

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