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boost lag - causes?

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dss15

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Hi Guys

I've got some pretty crappy turbo lag on the stock T28. I don't hit solid boost until a little over 4200RPM (have an MBC set to approx 1bar) and it doesn't spool 'properly' until about 3500. I've looked down on occasion and seen it at 5,000RPM as 1bar is achieved.

I've tightened everything up, there's no fluctuation once it actually achieves boost, so I don't think anything is leaking. It just doesn't seem to spool early enough. It's my understanding that the MBC should hold the wastegate shut until pressure blows it open?

What are the signs that a wastegate actuator is on the way out? Any experiences here?

Does anybody know exactly what kind of added lag an FMIC gives? I've got your standard Greddy FMIC kit.

Also, is it really (really?) worth investing in an EBC? besides the lack of spiking?
:wave:
 

_Wing_

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Time to upgrade your manual boost controller, and yes EBC is leaps and bounds better than MBC :)
 
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