I would also like to point out that the earlier comments from the mags on the hood
scoops are based on the E body designs, not a Dakota from the late 90's. There is
just a little bit different air flow going on here.
KURTZ ERIC wrote:
> Bob,
> Pontiac has published airtunnel info in an earlier mag that we had a
> work that proved that their ram air hood is more functional than the
> Camaro SS hood because it is at the front of the hood and the air is
> directed more into it. However they recently raised the scoop in order
> to capture better air which has more volocity and less stagnant and
> swirling air.
> Talking with some old chrysler designers at CTC, the running joke
> about the shaker hood was it was the easiest fix for the engineers for
> NVH problems!
> Eric
>
> Bob Tom wrote:
> >
> > My comments are geared towards the functionality of the shaker hood
> > and ram-air type hoods in general rather than pros/cons of their
> > appearance.
> >
> > According to the Mopar Chasis book, functionality depends on both
> > the location of the scoop(s) and the height of the carb (in our case,
> > the tb) which directly affects the height of the scoop(s).
> >
> > The most effective hoods that Mopar put out were on the '69 1/2 SuperBee
> > (the Six Pack hood) and the RoadRunner (the Six Barrel hood).
> > Ideal location for the scoop(s) is not right at the front edge of
> > the hood (the layer of air right at the edge is sort of dead) but
> > about one inch or more above the hood like the 69 1/2 scoop was.
> > However, the scoop should also be within an inch of the top of the
> > carb (tb) for maximum effectiveness. The scoop will still function
> > if higher but not as well.
> >
> > One common mistake that is made is to put a pro stock hood on a
> > vehicle when the carb (tb) is at stock or near stock height. Pro
> > stock hoods are high because the carbs are higher than the hood line.
> >
> > Naturally, the last thing when making a scoop functional, is that
> > you have to enclose the carb (tb) in some sort of box to get the Ram air,
> > otherwise you only provide more cooling for the motor and don't
> > get the Ram air effect.
> >
> > I have read in the old performance mags that the least effective fresh air,
> > Ram-air system from the factory was the shaker hood. It is still functional
> > but designed for style ... the Six Pak hood outperformed the shaker hood.
> >
> > I'd be very interested in hearing other comments on the functionality
> > of ram-air type hoods.
> >
> > Bob
> > Burlington, Ontario
> >
> > '97 CC Sport, 5.2L, 3.55, auto., 4x2, flame red
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