| | | quote | | Originally posted by Jncomutt: I have to disagree with you guys on the HP thing, I'm sorry. Yes I'm aware of that engineer guy that removed the intake. Perhaps he just pulled the hose off of the TB and was pulling air directly from the engine bay. I see where there is the possibility of air heating up as it flows thru the tube, but no more than the stock rubber hose used to. I ran my car at the track with the stock setup, then the tube setup and although my times were pretty much exactly the same, the mph was consistantly higher with the tube over stock, take it as you will. |
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Actually, a rubber tube would conduct less heat than a metal one, but even so, I doubt that will have a large impact. You could always Jet Hot the pipe or wrap it in header tape. However, your strip results tend to suggest a slight horsepower increase. You'd need several passes, with logs of engine and weather conditions to know for sure, though, but a mph increase does typically mean a HP increase.
As for the weather issue, I removed the water diverter box on my OEM intake. I've got a straight pipe (flex tube) that goes from the bottom of the OEM air filter canister to the fender vent (that way it's still sealed to outside air). I'm also running a Fiero Store "Holley-style" scoop. I drive the car in all manner of weather and have not had any trouble with gunk or water getting into my air intake or air cleaner, let alone the engine.
Did I notice a power increase? Nope. (well, no butt-dyno increase, I'm not putting it on a chassis dyno for that)
But it sounds much better and that's why I did it. And doing it this way allows me to keep using factory replacement air filters. 
Just thought I'd add another point of view.
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