Bernd,
Im not to sure I agree with that. If you have a vacuum thats doin
what it does! And you have air rushing into it instead of it sucking it
isnt that Functionally "ram air"? Crude I know! With my hood and the
amount of space that air can collect in it, I believe its sooner than
80. Much sooner actually. At idle to about 25mph to 30mph it is not
"Ram Air". It's more like air assisted! Beyond 45 to 50mph is when it
begins to truelly be "ram air". But by the time you're 3/4 down the
track, its honestly functioning quite nicely. I personally can tell a
huge difference when I put the fiberglass hood on as aposed to my metal
buck. I believe the reason is a 50% hood gain, and the other 50% due to
the intake exhaust combination that was enhanced by the hood. It goes
back to the combination modifications. The more that match the happier
the ponies will be! Air scoops that are high above or closer to the
front of the vehicle are the most functional just due to aerodynamics.
Cowls are excellent to due to pressure zones.
I dont know really, Im just babeling and got carried away!
Oh, I went down to the exhaust lab and talked to a guy about Cats. Stock
Cats are no where near "hi-flow" Cats. With most name brand exhaust,
their claims are pretty accurate as being whatever % better.
Eric
"Bernd D. Ratsch" wrote:
>
> The "Ram Air" concept has been tried over and over again...especially with
> the different types/brands of hoods. The "Ram Air" effect doesn't happen
> until you're at least over 80-85MPH and won't be effective until you're
> well about 150MPH. I admit, the hoods may look good, but they're,
> unfortunately, not as effective as they claim. All that the hoods really
> do is collect cooler air, which in turn gives better performance
> results. No Ram-Air effect...not possible on most street driven
> vehicles. (Dragsters...YES. But look at their intake systems.)
>
> The main reason for my Cowl Induction hood is to have a way for the
> under-hood heat to be released...tested...and working. ;)
>
> - Bernd
>
> At 05:11 PM 09/23/1999 -0400, you wrote:
> >I was wondering, are their any different types of ram air hoods? I don't
> >like the Cowl Induction hoods, because I watched a few idiots use someone
> >cowl hood on their camaro as a bike ramp, and I just don't like them. (No
> >Offense Bernd, yours looks nice, just not my cup of tea). I keep
> >consistently seeing the same Ram Air hood over and over, is their another
> >Ram Air hood (that is functional or could be made functional easily) out
> >there?
> >
> >Aaron Braun
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