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Quick MBC/Vaccum line question

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jjw205

15+ Year Contributor
327
15
Aug 4, 2006
Syracuse, New_York
If I run a vaccum line from my j pipe to my wastegate actuator, will that allow me to run stock boost? I am just finishing up a year long build, and I misplaced my MBC. So to get it running, will this work temporarily?
 
Hooking up directly to the waste gate only allows boost pressure of the minimum spring rate. When you have the BCS installed, it acts as a stock boost controller and generally ups the psi by 2psi. In essence you'll be running a hair lower than what you would be used to.

If that is a concern, just get a manual boost controller, put it inline between your boost source and the waste gate and set it for a few psi higher.
 
Awesome. Exactly what I wanted to know. I'm running the E3 16G and 10psi will be fine to get it running. Was just making sure it didnt need to be Tee'd off to the intake like the diagrams show. Thanks guys!

:hellyeah:
 
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