Aerochargers are better than (insert compressor)

[Bruce]

Think self EGR'ing.
Some EGR can help, too much and mileage will drop.
There is two sides to these statments, while you might think that you'll get
better cruise, remember the statement is for a 200 HP engine so you also
have to make 200 HP thru that pipe.  That will take a fair sized cam, and
really make the self EGR'ing an issue.
Bruce


----- Original Message -----
From: "clayb" <clayb at sbcglobal.net>
To: <diy_efi at diy-efi.org>
Sent: Sunday, October 21, 2001 11:01 PM
Subject: RE: Aerochargers are better than (insert compressor)


> > Do you really think you will get optimum cruising fuel mileage if you
are
> > exhausting a 200 plus HP engine through a 1.5" diameter single exhaust
pipe
> > ??
>
> Of course you will. The larger pipe is of no use when the engine is
> making 30 HP. Most engines have no objection to slight backpressure
> under light loads, anyway. Some even run better that way.
>
> So, by your logic, zoomie pipes would be the optimum setup for part
> throttle efficiency? Do you put large headers on a small engine, because
> that means less backpressure and it will work better? Don't they make
> different size headers for a reason?
>
> - Clay
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