Air Intake questions???

[chris0276]

First timer here. Will adding a Nismo CAI to my 02 Spec V increase or decrease the gas mileage??? By how much? Please give specific numbers if possible. Also, has anyone tried the Tornado Air device??? Does it work?? Thanks.

[sr20de4evr]

It will increase and decrease your mileage depending on how you drive. At WOT you will be sucking in more air and more fuel, and you will have less gas mileage. While cruising the engine will run more efficiently and you will have better gas mileage. Just depends on which you do more than the other, on my car it increased my mileage by about 2mpg.

And no the tornado doesn't work, don't waste your money

[chris0276]

Thanks for the advice. What is WOT again???

[sr20de4evr]

wide open throttle

aka full throttle, wide open, pedal to the metal....I think you get the point

[94sentragtr]

lol ever since i got my intake my gas mileage dropped. Probably because i live in a place with a lot of stop signs and light so i like to punch the gas and hear the engine scream haha. Like SR20 said all depends on the way u drive it

[Rowens V-Spec]

I'm not saying that the tornado works, or does not work. I actually did a project on this in my physics class at the college. You have to love all the toys they give you to play with in college.

Anyway the basis on the tornado is air movement to change hotspots basically. The air as it twirls around mixes with the gas in the chamber to give it a dispersed fire, as opposed to just firing in a more concentrated spot in the cylinder.

You are correct in your theory that yes, the air sitll has further to travel, and that if they were on the inside of say the manifold, that a person could see how it would work.

If you recall on the water model how the water swirls on the top and as it comes out the bottom. That is how it works going through the engine. The air is not as concentrated or anything in its swirling, and is not nearly as moving as it is when it originally comes in. The point basically is that the air is still slightly twirling around as it enters the cylinder which negates any actual HP gain that they state, and does not really help your gas as much as they say either.

It does work, in both physics and in reality. The only problem is your not going to get what they say you will. Not even close. Your lucky to get an extra 1-2 HP at best and maybe an extra MPG.

Your engine is still sucking in air as it goes which helps preserve the swirl on the air, but to truly see the difference and notice it, you would want a tornado in your intake, and at the point of your intake manifold that enters your engine. Then you could possibly make the claims they do.

[nismo_pilot]

wtf, i cannot believe that thing doesnt work! nismo CAI is supposed to dyno out at about 8.7hp to the front wheels according to nissan motorsports, if anything get it for the sound

[Rowens V-Spec]

Nismo you do reallize that i was talking about the tornado working. They were curious about that. I may get the nismo Air intake once i learn to control my foot. You see, its made of condensed lead which means gas mileage that should easily be 25mpg becomes less than 20

But my post is on the Tornado up there.

[Chiquae07]

CAI will help as long as you dont WOT/petal to the metal on the streets where the cops never are. also try driving around not goin over 2500rpm, that helps gas alot....if your good u can say dont go higher than 2k

[Rowens V-Spec]

Well if i didn't go over 2500 rpms then really what the hell is the point of having my car. Hehe.

Just based on everything that I have noticed i don't think it should be so sensitive to the gas. Is there something about the fuel feeding system that I don't know about with this vehicle?

[nismo_pilot]

ahh the hell with it, redline every gear, its more fun that way

[Rowens V-Spec]

I hate redlining 1st gear, it almost seems so pointless. Well it seems to like to eat my gas though. I'd rather redline 2-5, but i'm afraid if i redline my 6th gear ell i might not be able to and if so would prolly shit my pants