Whipple (AutoRotor) Compressor

[Frederic Breitwieser]

Depending on your manifold, this is not uncommon.  The longer the intake 
runners, the more torque (generally) you can realize at lower RPMs, however 
at higher RPMs, the runners need to be shorter.

Depending on how much fabrication you want to get involved in, something to 
consider is the method Ford uses in their late model SHO taurus (I think 
its Ford, and not an aftermarket manifold, have to check), but they have 
"gates" on each intake runner ::pair::, one long, one short, and the gates 
move between the two runner lengths depending on the RPM range.

I saw it in "Turbo and High Tech Performance".  I will look for that 
specific issue again, and give you a clue so you can read up on it.  I 
personally thought it was a neat idea and a good solution... though 
definately out of my fabrication abilities :)


Frederic Breitwieser
Homebrew Automotive Mailing List
Website: http://members.aol.com/fjb203/index.htm
Email: frederic.breitwieser at mcione.com & FJB203 at aol.com
Bridgeport, Connecticut


> I have been thinking some about putting an intercooler on, or doing
> something for the higher RPM's.  I already put some headers on and it
> has dual catalytic converters already.  I suspect that the engine is
> leaning out at the higher RPM's but I haven't tested it yet.