RE: Curiosity about hoods

From: Bernd D. Ratsch (bernd@texas.net)
Date: Fri Sep 24 1999 - 16:34:31 EDT


Most people think of "Ram-Air" as a form of boost...not just a "Cold Air
System". That's all they really are...including my Cowl induction Hood.

- bernd

-----Original Message-----
From: owner-dakota-truck@buffnet4.buffnet.net
[mailto:owner-dakota-truck@buffnet4.buffnet.net]On Behalf Of Frank
Johnson
Sent: Friday, September 24, 1999 3:16 PM
To: dakota-truck@buffnet.net
Subject: DML: Curiosity about hoods

I've been following this discussion and i figured i'd adda little "real
world recorded" proof.
I was reading through a R&T about the GM Firebird/Camaro whatever ram-air
vs. normal intake system. They had 2 identical cars, same engine, same
exhaust, same everything except for the intake system and ram-air scoop.
The 2 cars had the same weight as well. So they run these 2 "identical"
down the strip however many times and averaged the results.
Basically the cars were dead even in acceleration until about 40-45 mph
where the ram-air model car began to pull away a little. The effect was
magnified the faster the car went (obviously). So what the end result is
that the 0-60 times were only slightly different but the if my memory is
right the 1/4 was about .4 seconds faster with the ram-air.
Whether or not the car actually had an effective ram-air system or the
increased acceleration was simply due to colder air in the engine bay, the
whole argument is academic because the end result is that the "ram-air" car
is faster.
And that's really the point isn't it?

Frank WJ

>From: Eric Kurtz <Erics5.9@home.com>
> Yes Bernd,
> Colder air and more of it! And its only obvious that a street car
>thats only going 55 to 90 isnt going to get as much of a ram air effect
>of a drag car going 100 to 150 or more! But to say that ram air isnt
>ram air is ignoring common sense and the obvious! And to say that
>buying a functional ram air hood is a waste of money because its not
>truely functional is completely incorrect.
>Eric
>
>"Bernd D. Ratsch" wrote:
> >
> > So, when you take the little shield off of the radiator support on the
>older
> > style daks, you know, where the air tube is ran. That hp gain is due to
> > cooler air?
> >
> > YES
> >
> > Why do Mopar and aftermarket intake companies sell intake tubes that are
> > smooth instead of ridged like O.E.? It's due to airflow in the tunnel,
>not
> > air pooling. just my .02 and no aggrivation given or taken! =0)
> >
> > No arguments there. But the "Ram" effect isn't even close to as high as
>it
> > would be on, let's say, an Race Car (Formula) Air Intake or a Dragster.
> >
> > - Bernd

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