[Josh Karnes]

> I'm trying to asses the potential for a forced induction system to
> get about 20 more HP out of the 4 cyl engine.....

Say what?  There is no way to get 20 more hp from a 4 cyl engine (the 
2.5L injected "slant-four" from Chrysler, right?) with induction mods 
unless you add a turbo.  You *might* get as much as 3-5 hp at high 
speeds if you manage to design a very good forced system, but that 
will really only have an effect at speeds of 50+ mph.  You can get a 
couple more ponies just by making a better, higher-flowing airbox, or 
cooling the air coming in (or keeping it cool, once it is cool), but 
the forced-air idea is not going to yield that kind of power 
increase.  

I hope you were kidding :)

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Josh Karnes                                                 joshk at tanisys.com
Renaissance Man                        http://www.tanisys.com/~joshk/home.htm
Tanisys Technology                                     http://www.tanisys.com
Austin, Texas                      '78 BMW 530i | '72 Datsun 240Z | IZCC #308
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           *** opinions expressed herein are MINE, ALL MINE!! ***