Custom Air Intake for P5!

[acidbug]

Hey All....I got a question about Creating my custom air intake...I purchased a new air intake...3" tube w/ filter...Well...I installed it..and i felt the difference...but now i am debating whether or not to turn it into a cold air intake or....a custom ram air intake...

Well here is my Idea...My current air intake setup leaves the filter about 8 inches from the bottom plastic floor which all P5's have in the front of the engine. Well directly under my intake there is a cut out that is about 6 inches wide and 2 inches tall (it looks like a vent).

If i were to put in some aluminum piping and feed it up and ontop of the air filter would that be away to create some RAM Air...or is the pressure not going to be enough to do anything?

Charles

 

[big_ben]

It wont work. It will give the motor more cold air, but as for extra air pressure, no. The path isn't straight enough to create any pressure at highway speeds. The only way to get ram air effect is to route it from your left headlight or to cut a hole in the hood for a direct feed.

 

[Rogue_Biker]

True RAM Air systems have an airbox that is pressurized at speed. Kind of like a very low pressure "turbo" effect. It's called "ram air" because in a way you're ramming the air down onto the engine's intake. It's enough to add some noticeable horsepower at speed (not just merely 1-2 hp form thos CAI's). As of yet, nobody builds a true RAM Air System for any car I know except those 60's & 70's muscle cars, as well as the 'Vette's & maybe the '03 Mustang (not Cobra). That's because you really have to design it into the car from the very beginning. Companies that call their CAI "RAM Air" is kind of lying because it's just another version of a CAI system.

 

[kiwi]

on the topic of air feeds, can one be added easliy to the bonnet of the car (more for looks than functionality ) ?

 

[njaremka]

ram-air is a hoax. to get any measurable pressure into your air box from a ram-air set-up (even if it was designed properly) you would need to travel in excess of 125 mph. and then, you would only be getting about 1 psi in your intake.

 

[20ESGUY]

I kind of have to disagree with you NJ. You're right that the airbox won't be pressurized..but it does make a difference. It's not so much in the pressure but the volume, ram airs allow a greater volume of air into the box and the intake track. Believe it or not it will make a difference in how the engine will perform. If you wanna see the difference get one of the old 77-78 camaro's that have the cowl induction setup from the factory, they've got a switchable on/off system via a cable operated flap. If you're traveling 60MPH with the flap closed and then open it up...it'll actually start to pull nice and hard. It's not tire smoking and rolling sideways hard, but it's a good bit stronger than with the flap shut.

 

[njaremka]

I kind of have to disagree with you NJ. You're right that the airbox won't be pressurized..but it does make a difference. It's not so much in the pressure but the volume, ram airs allow a greater volume of air into the box and the intake track. Believe it or not it will make a difference in how the engine will perform. If you wanna see the difference get one of the old 77-78 camaro's that have the cowl induction setup from the factory, they've got a switchable on/off system via a cable operated flap. If you're traveling 60MPH with the flap closed and then open it up...it'll actually start to pull nice and hard. It's not tire smoking and rolling sideways hard, but it's a good bit stronger than with the flap shut.

that's the cold air effect you're seeing in that case. ram-air does better as a cold air intake, than an actual pressurizing system. if you do the calculations, you'll see what i said above holds true.