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Need help understanding turbo trim sizes etc.

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  • Need help understanding turbo trim sizes etc.

    So yea, I'm basically trying to educate myself as much as humanly possible on turbos and other engine parts,so that I can decide if in the future,I am going to go through with a sr swap'd 240 and whatnot. I have read up on turbos and right now I am at the point of where I dont know EXACTLY how the trim fits in and I kind of know that the a/r of the turbine has to do with it's spool-up characteristics(small a/r quick spool-up,big a/r,longer spool-up)
    and I think the trim has to do with how much lb/min it can make??And I have NO idea what lbs/min is anyway... so please help.

    Thanks.
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