MODIFICATION, COLD AIR INDUCTION

[A20A1]

yup out of aluminum.
i'ts pretty easy... just make sure you leave large tabs to mount the scoop and smaller tabs to bend in along the edges to make them smoothe.

[POS carb]

is that a tuppaware?

[A20A1]

Originally posted by POS carb
is that a tuppaware?

:lol

[Site]

You should make a few of these and sell them as a kit to users on the board. Would anyone other than me be interested in this?

|site|

[89cordlx]

I'd be interested since I suck at being told stuff hehe.

[RedneckRicer]

i had a ram air of sorts on mine for awhile, but i took it off when attempting to sell it. which i'm not gonna do for awhile now. but i ran a peice of vacuum tube from the FI intake plastic arm from the air box to a scoop under the bumper (from a '78 impala i wrecked) it made the car seem faster and i got better MPG

[pric]

I did a little quick sketch and sent it to A20A1 to clean it up a bit and post it for me. It's a hood scoupe that allows the air to flow into the scoop and up and around to the top where the filter is and a funnel like trumpet that runs down into the carb. Hard to explain you have to see the pic.

[Site]

So pric (insert beavis and butthead-ish laugh here), you gonna build it?

[87pimpsterdocious]

alas, the radiator is in the way as you said. Screw that idea.

[bobafett]

ahh man dont give up THAT easy. i am sure if there is a will there is a way.

what about sticking a box up near the vents on the bottom edge of the hatch bumper?

even if there isnt some slick way to do it, i would still be thrilled to ahve a ram air hood!

[Site]

Originally posted by funstick
if thats yr concern make sure theres some sort of venting on the bottom of the air box

Funstick wrote this in reply to AccordSi writing about encasing DCOEs in an aluminum box and then feeding air to the box with a hood scoop. My question to Funstick or others who know is this: wouldn't venting the bottom of the airbox decrease the air pressure being fed to the DCOEs? I know A20A1 has a hood scoop, how do you get around the rain problem? I've got some used DCOEs being shipped to me and would love to set up some kind of forced induction for them. My car is HUNGRY for forced induction

[A20A1]

Originally posted by 87pimpsterdocious
alas, the radiator is in the way as you said. Screw that idea.

hmm.. add an aluminum spacer to the 2 bolts holding the hood clip you may need longer bolts... but this would lock your hood before it closes all the way... you can drive around with cold air coming in from the top... it would cool the engine and flush out hot air.

but it also adds a lot of air resistance

[A20A1]

small vent holes will decrease the efficiency of the ram air but it shouldn't make ram air worthless.

as long as you slant the base of the aluminum box away from the barrels of the carb the bulk of the water should go away... then make sure you drill a hole to keep the water from building up.


I found that at certain speeds barely any air is entering the hood scoop... I actually saw rain fly upwards in a dramatic curve... I'm now extending the scoop to meet the front of the hood.

[A20A1]

Originally posted by pric
I did a little quick sketch and sent it to A20A1 to clean it up a bit and post it for me. It's a hood scoupe that allows the air to flow into the scoop and up and around to the top where the filter is and a funnel like trumpet that runs down into the carb. Hard to explain you have to see the pic.

here is the photoshop version... still working on a 3d drawing.

[1989 DX R]

What about cowl induction?

[A20A1]

Cowl induction would be good... but the air hitting the windshield already is forced into the well beneath the windshield... POS carb cut a hole there to feed his carb... I bet it worked really well.

[pric]

Thanks A20A1. You did a good job

[2Fast_Fiero]

I think we shouldn't just worry about cold air intake, we should also be finding ways to get cold air blown on our engines, driving at any speed the engine compartment is hoter then fuck, and no mater how good of a cold air intake you got, theres still alot of heat inside that compartment, keeping the engine hoter then fuck, the engine needs to be cooler then it normaly is also, I'm trying to develop some type of scoop for under the car inside of the mouth of our bumper to blow air onto the engine, the fans dont realy work because they cant get enough air. I'm starting to think a 4 Core Intercooler would be great.

[YK86]

If your worried about getting hot air out of the engine bay, how about a heat extractor like some people make for Mustangs?? It's basically a functional hood scoop facing the opposite direction so when the cold air blows in from the front, the hot air at the top of the engine bay gets blown out the back.

[2Fast_Fiero]

There you go!!!
that could be good for the FI people. since they mainly have no use for a Ram Air, they could do that.

[A20A1]

Originally posted by 87pimpsterdocious
Here it is: Lookes like theirs a spike toward the front bumper (the grill area) so perhaps a ram air there would work the best.

I can't really see why the windsheild pushes the air so high unless the test was done from the side...

[Sean]

easy its called laminar flow. air will try to almost stick to a curved surface then the flwo path will always extend beyond that. by simply making a 1 inch tall lip across the hood you could recudedrag by a signifacant ammount. btw im talking about at the cowl area. this is why air dams are so effective at reducing drag even though it would apper that they would induce more. i still think picking up air form the cowl air would work the best as its already a high pressure flow area.

[AZmike]

That picture isn't of airflow, it's a pressure gradient. It shows the relative magnitude and direction of the pressure on the car's body from air. Some places the air pulls (front of roof), some places it pushes (the front). My guess is that it's for the center, so the pressure could be significantly different closer to the sides of the body.

Also, I doubt that a car moving at any reasonable speed would produce a laminar flow, but I'd have to review Reynolds number notes to be sure. I'm almost certain it would be a turbulent flow.

[Sean]

let me geuss your in college to be an engineer. laminar flow has more to do with air colums being accelrated than it does with actaul vehicle speed.my friend trust me this might be a pressure gradiant but it also show the highest amount of pressure the cowl area. its this way on 90% of the cars out there. the windsheild induces a shear on the flow across the hood. the resutling updraft also creates a high pressure area at the base of the hood.

and turbulent airflow and laminar airflow can e created at all sort of vehicle speeds. it just depend on how fast te air is going o a particular portions of the car. stop thinking text book.

[A20A1]

ahh pressure... now the lines make a bit more sence...