bmw-digest V9 #458

[mark kibort <mkibort@xxxxxxxxxxxxxx>]

Message text written by INTERNET:bmw@domain.elided
> Find an old car that has a fan without a clutch. Rev the engine to
5000rpm with the hood open. Feel the airflow. Now turn the interior fan o=
n
"high." Feel the airflow from that. That's the difference between an
engine-driven air mover and an electric motor-driven air mover.

Charles.
'73 FJ40 "Gandalf", '77 450SEL-6.9 E-code "Dogs of War", '89 325iX
<

thats a fan used to draw heat out of the radiator, compared to a fan that=

focuses air into the intake runners.   it that what youre doing.
I could easily produce the 20 hp from an engine driven motor, but why, ju=
st
drive a 10 psi compressor vortec supercharger.

but , how do you generate, 9 hp of rear wheel hp by your driven fan.  IE
YOU CANT.   So, the electric motor , with its specific purpose, does the
job well.    400 watts of electrical energy  (about 0.7 hp) for the gain =
of
9 hp on the ground .  Dyno proven.   and not make believe.   it works.  =

Now , take that 15 to 20 hp and drive a compressor, now you have to chang=
e
your computer, fuel management system,and duct the entire system tight as=
 a
ducks behind.   6000 dollars later, you have 100 to 200 hp .    mine is a=

meezly 9 hp, but only 300 bucks

MK

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