Frederic Breitwieser/turbo discussion

[Frederic Breitwieser]

> Smaller turbos spool up faster but aren't flash at the top end.

The way to size turbos is fairly easy in my opinion.

Calculate the CFM your engine will draw at REDLINE, add
5-10%, and you have the size for one large turbo.  Cut in
half for two small turbos.  With two smaller turbos however,
at closer to 10% as for some reason we found volumetric
losses with two turbos, probably because the intake tubes
end up being longer.

-- 
Frederic Breitwieser
Bridgeport, CT 06606

http://www.xephic.dynip.com
1993 Superchaged Lincoln Continental
1989 500cid Turbocharged HWMMV
1975 Dodge D200 Club Cab (soon to be twin turbo 440)
2000 Buick GTP (twin turbo V6)