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real boost , but not much
- Subject: real boost , but not much
- From: mark kibort <mkibort@xxxxxxxxxxxxxx>
- Date: Sat, 7 Nov 1998 19:41:21 -0500
Message text written by INTERNET:bmw@domain.elided
>rom: "Scott Johnson" <sjohnson@domain.elided>
Subject: Re: electric supercharger (for real)
Unless this device is creating _real_ boost, it sounds like it would =
decrease horsepower rather than add it. Your motor doesn't sit =
there and politely use whatever air is handily lying there for it-it =
sucks it up on the intake stroke, as you hear on cars with cone-
filter type setups.
Sounds like an intake restriction to me. If I want a _real_ power =
boost, I'll lose some weight. Now THAT'S a UUC upgrade!
- - -Scott Johnson
87 BMW 325is - money pit/autocrosser
95 Contour SE - wife's BTCC car<
<<<<<<<<<
its like having 120mphram air sitting still. it produces dyno proven=
hp. it does not give anyrestriction. (easy bench test)
and it produces a smallbut effective .35 psi of pressure to the air box.=
=
this pressure is denser air that is drawn in by the intake stroke. Y ou
also hit my point on the head with suck. Yes , suck, it sucks therefore
their is a negative pressure that we are trying to eliminate. that is t=
he
main purpose of ram air and my device. if the pressure is there , it is=
there to move into the engine. Ive measured the vaccum in the air box =
(filter area) You should too, before you doub my experiences. the
vaccume in the airbox is .5 to 1 psi under max throttle and 5 to 7000 rpm=
=2E =
this is equal to operating your car at 1000 feet altitude. YOU want to=
test those effects, drive to a mountain, on a flat road go 60 to 100 mph,=
then do it at sea level , watch the difference of times. We have
coorelated that data to the fan operation at different pressures on the
dyno. =
So, it works, and works for scientificly proven reasons. You really ne=
ed
to study some basic fluid dynamics, aerodynamics and engine combustion
theory so we can talk about this educatedly.
mark
electric ram air system
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