Hey guys, i am thinking about adding a dual functional air intake hood scoop. I know that i would have to get a hood scoops with an air filters and do the "plumbing" to the throttle body, but would the air forced in the hood scoops act like a turbo and increase my engine performance, not nearly as much as a real turbo but could i expect this?

Or would hood vents be better?

 

Basically your making a ram air hood. Will it help? Sure a little but so little you wouldnt notice much of anything.

You also have to deal with rain water getting into the intake system when driving in the rain.

Wayne

 

How would i prevent water from getting in it? Im sure ther is some way, any ideas?

 

Didn't Ford already move the air filter box down near the grill to have the "ram" air affect ?
Maybe if the air filter box opening was made bigger to allow more air in ???
Using the original air box would solve you rain problem.

 

in my 2002 ford ranger it is located behind the right headlight and the opening is about the sice of a baseball.

 

No, it would have no effect on performance if stock system is in good working order.

It is a visual effect only.

In the old carb days a hood scoop could be used for a Cold Air Intake(CAI) but when vehicle makers went to fuel injection they also added CAI, and in a better spot, lower down in Rad support, cooler air than above hood.
Ram Air on carbs was actually bad unless you did some redesigning, a carb works on engine vacuum pulling out fuel from the jets, if you force air in you reduce the vacuum pulling in the fuel.

Good read here on "scoops": An Explanation of Hood Scoops - Ate Up With Motor

A supercharger sticking out of the hood is another story, lol, that's part of the engine, not part of the hood

 

The question is, how fast would one have to go to force air into the engine above atmospheric pressure of 14.7 pounds per square inch ?

In theory if you were to gain one pound more wouldn't the MAF sensor detect that and have the computer hold the injectors open a little longer ?

Or is it based solely on volume and not pressure ?
The volume being measured by the TPS ???

 

i think its all about air pressure, because the more volume there is the more pressure,