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RPM AND BOOST


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As aforementioned give the leaks a good check out, could even be a split gasket on the DV thats causing the boost to be a bit freaky and lumpy. dodgy MAF (or dirty) / Boost Controller/ TGV's lots of options to why the 3K engage.

My blob used to come onto boost at 3K and found out my TGV's were dropping a little which was causing the boost unable to come on until above 3K. they are now jacked open and im changing to an STI8 manifold to erradicate the problem.

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before you ask what the TGV's are their full name is tumble generator valve, if you google it there should be stacks of info abut for you

 

i have heard a few people say that the baileys dump valves aren't the best for scoobs, might be worth either putting the standard piping back on or find a known to be working DV and see if that makes a difference, as said could also be the boost controller, a cheap manual controller would bypass the standard one and not be as expensive as the original unit just in case it's not that

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