What about splitting it between ram air and cowl....I'm thinking two small
air filters, one each, or a two sealed boxes around a 14" open
element...just thinkin'..always scary. :-)
Jon Steiger wrote:
> At 03:45 PM 2/4/99 +0000, you wrote:
> >Eric
> >
> >Wouldn't a cowl hood be the most effective design
> >from a strictly performance standpoint? It would
> >allow hot air out of the engine compartment and
> >give plently of room to run with an open air element.
> >
> >I know from the muscle car days that all the OE
> >scoop designs were more show than go ... that's
> >why I never got one back then.
> >
> >If you look at pictures of drag racers, most are
> >running with cowl hoods.
>
> Yep, the Dakota pro-stock trucks are using cowl induction, but
> the Avengers use scoops. Both a cowl and a scoop will allow cold
> air into the airbox. The forward facing scoop by a "ram-air" effect,
> and the cowl by vaccum. Originally, I was going to get a cowl
> induction, but my conclusion from studying it was that both were
> about equally effective on a street vehicle. On a nascar racer,
> cowl induction is better due to the higher speeds involved. (less
> drag with cowl induction) Since the ram-air and cowl induction
> are functionally about the same, I decided to go with the ram-air
> because its a "mopar thing" whereas cowl induction seems to be
> a "GM thing".
>
> Although its called "ram-air" I don't believe there's really any
> ram-air effect to speak of. Both types of hoods are good for getting
> cold air to the engine, but its not gonna create a supercharger
> effect. If you've seen the new HEMI streamliner, you'll see there's
> a scoop up on top of the carb. I seem to recall reading in one of
> the mags that there is a "ram-air supercharger" effect of about
> .25psi at 300mph. (I can't find that info now though, maybe someone
> else can confirm or correct it?) Anyway, if they're only getting a
> tiny amount of "boost" at those speeds, we won't really get anything
> on our slow 1/4 mile runs. They do an excellent job of providing cold
> air though!
>
> -Jon-
>
> .--- stei0302@cs.fredonia.edu ------------------------------------.
> | Affiliations: DoD, EAA, MP Race Team, NMA, SPA, USUA. RP-SEL |
> | '96 Dodge Dakota v8 SLT CC (14.58@93.55), '96 Kolb FireFly 447 |
> `----------------------- http://www.cs.fredonia.edu/~stei0302/ ---'
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