Snails 101: Turbine vs. Compressor Wheel Trims

Your premier source for information on the Turbo KA: KA24E-T and KA24DE-T (KA with aftermarket turbo kit)!
pressure
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Joined: Fri Jun 20, 2003 1:10 pm

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What up yall. New to this board, car and engine, my 240 isn't even a week old yet but my plans for it stretch much farther back than that. I've got a bunch of stuff, but first, what characteristics will a turbo with an 80 (theoretical) trim turbine wheel and 60 trim comp. wheel have when compared to an 80 comp\60 turb wheel? And those characteristics would be roughly the same as swapping the a/r's of both sides similarly, correct? After deciding finally on a desired boost and airflow, does it make more sense to shift power upwards (or downwards) in the band by upsizing wheel trims or a/r's, or does it really matter? I've done plenty of reading\research, so don't worry about noob-izing for me. I'll ask if I don't get it.Also, does anyone know where to find a stock red-top t25 compressor map (bs or not, I'd still like to see one), preferably with the sr already charted? I've searched around more than half-assedly but not quite full-assedly; I guess it was a cheek-and-a-half search.

Oh yeah, thanx in advance.


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WDRacing
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Joined: Mon Nov 25, 2002 2:00 am
Car: 95 240SX, 99 BMW 540i, 01 Chevy Express, 14 Ford Escape
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Here's a run down on the basics...the larger the AR section(exhaust side) the more flow and more lag. The larger the CR section (intake) the more volume and efficiency it will have. There are alot of trims to choose from. Choose wisely my son...

WD

dsylvia
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Car: 93 hatch
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visit http://www.project-mayhem04.com/Turbo%20Tech.html

3 page write up with all the turbo info you should need.


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