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Old 08-03-2006, 07:47 PM

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waste gate?

at what boost psi does the factory waste gate open on a 7.3?
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Old 08-03-2006, 08:12 PM

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thats not a simple question....it depends on load, speed, trans position, and many other variables. Boost isnt the only thing that affects wastegate operation.....
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Old 08-04-2006, 07:14 PM

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Talking Ok ,

Marc is correct as always, BUT for a general idea I have been told that the WASTEGATE (oem) that is . opens at 1/2 of what would be considered as your peak Boost allowed, or obtainable. ex. OEM Boost peak 24-25 PSI, meaning that the OEM wastegate STARTS to open in this ex at 12-13 PSI.
It continues to open progressively more and more as boost level peaks.
This is not a specific example that can be applied to all wastegate operations, but how the wastegate functions in the specific enviroment used in this example. I don't mean to be confusing, maybe this example helps a little. If I can stand corrected please may others correct or clarify my post. This is how it has been explained to me. GOOD LUCK
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