Spool up: BB v plain bearing

NXTIME · 11-01-03, 09:38 PM

I realise that I may be opening a can of worms here, but I have found different stories regarding the perceived improved spool up that a BB turbo provides over a plain bearing.

How much is the actual difference in this much-toted benefit of BB turbos? Obviously it would have to be a comparison between two similar, if not the same, sized turbos, with one being BB and the other plain bearing (all other things being equal).

I am mainly concerned with larger turbos, such as GT30 and up, but feel free to give any real world comparisions from your experience and knowledge

11-01-03, 09:38 PM	#1
NXTIME W I D E B O D Y LOVER Join Date: Feb 2002 Location: Sydney Posts: 1,680	Spool up: BB v plain bearing I realise that I may be opening a can of worms here, but I have found different stories regarding the perceived improved spool up that a BB turbo provides over a plain bearing. How much is the actual difference in this much-toted benefit of BB turbos? Obviously it would have to be a comparison between two similar, if not the same, sized turbos, with one being BB and the other plain bearing (all other things being equal). I am mainly concerned with larger turbos, such as GT30 and up, but feel free to give any real world comparisions from your experience and knowledge __________________ Pumped GTS-tt

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