Here's a big picture of my po-boy cold air intake. Not in frame is the spot
where the rubber flap goes, I took it off.
http://www.geocities.com/woodrufj/dakota/eng2big.jpg
Jay W
"Kevin L. Miller" wrote:
> Has anyone succeeded in fabbing a cold air setup for the 4.7L...to get the
> cool air from the front of the truck to the intake, Quick D , etc?? I was
> piddling in the garage today , changin' the air in my tires & such & got to
> lookin' at this. ( I still have the factory air box in place).. I removed
> the tube from the front of the airbox leaving about a 3-3/4 by 4-3/4
> opening. there's a plastic panel next to the radiator with not much in the
> way...so I measured & cut a 2-1/2 inch hole high in that panel..The opening
> lined up perfectly with the opening in the grill. I used a piece of 2-1/2
> inch vacuum cleaner hose & routed it from the panel to the opening in the
> airbox. I used a 2-1/2 " to 4" adapter (Delta dust collection part) & with a
> little flexing of the adapter it slid right into the hole in the airbox.
> Drilled 4 holes , inserted screws,.....OUILA!! RAM AIR...NOW the
> questions...After all that work, (less than an hour) drove the truck. Was
> responsive, no hesitation, bog, etc....but since I dont race - or haven't, I
> cant really tell if this helped or hurt...
> 1. Is 2-1/2 inch too small to get air to the intake.?? I know it replaced
> the approx 4-1/2 in opening in the airbox but with that tube in place with
> basically 2 90's I thought a 2-1/2 with almost a straight shot would be as
> good or better
> 2. since there is no obstruction to airflow with this setup, wouldn't that
> be better than getting fresh air from the inner fender (where the original
> tube was routed) with only a small hole there to get fresh air in?
>
> I have been trying to find a way to get a 4" hose setup the same way but
> there is 1 main obstacle. - the tube from the radiator that goes to the
> heater core (looks like). can move it a little but not enough.
> 3. Will increasing cold airflow help MPG as well as performance?? I would
> appreciate any input or suggestions..I dont have access to a dyno or any of
> that equip to test this setup. Maybe someone who does might give this a try
> & test the results??
> This was a very cheap mod ( les than $20 & I have enough hose left to route
> it to the Quick D intake when I get it) . I'm on a budget ( wife has ball &
> chain on checkbook) so I have to be creative as much as possible!
> Thanks in advance
>
> kmrcdd@swbell.net
> Kevin
> 2000 4x4 QC 4.7L auto SLT+ 3.55 LSD Skids ,K&N, MAAP Nerfs, SS bedrails
> Catch-alls, Deflectors, White/Silver 180 TS, Bosch 4418 +4 Mobil-1
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