Tornado Fuel Saver Works in 1999 Sentra

on 9/5/2008 11:29 PM Ed Light said the following:

Tell me how the air that supposedly swirls in the air intake tube continues to swirl in the throttle body after it squeezes through the air filter. At least back in the 50s, the tornado type swirler of that time was mounted under the carburetor itself where it just had to enter the manifold and then through the valves. That was another supposed gas saver that didn't work either.

I remember that at least one Audi engine design (back in the

John

The vanes go into the tube between the filter and the engine.

The Tornado I had in my 318 Dodge v8 was inside the filter on top of the carburetor. That one did give a noticeable difference; I could give it less gas. Not a massive difference.

This one is amazing, actually. I'm also using Tufoil (a magazine tried Tufoil in a car on a dyno, before and after, without breaking it in at all, and gave it a thumbs up). The 1.6 is now peppy. No longer hesitant.

I'm sure results vary with different models of auto.

The agitated air is supposed to more thoroughly atomize the gas, so it can more completely burn.

Tufoil is PTFE and Dupont maker of PTFE Tried to NOT sell it to snake oil salesmen Slick Oil and Microlon prior to "TUFOIL" because DUPONT says it DOESN"T DO ANYTHING IN AN ENGINE (they ought to know being THEY MAKE IT).Unfortunately the Supreme court ruled against Dupont saying it was restraint of trade.At least Dupont tried to shut these phonies down.

My best guess is that you are experiencing the placebo effect.

Ed

Called wishful thinking.

Having been a motorcycle road racer, I really think that I can tell the difference. But anybody could, with the magnitude of the difference in my specific 2 vehicles I've tried it in.

I really enjoyed it this morning. Decided to floor it into a curve and had to back off. Not downshifting for acceleration as much.

Won't know what the road mileage is for awhile since I won't be travelling until next year. But it's bound to be massive -- the Tufoil alone gives me 45-52 mpg on the road, not going over 55 mph, depending on how twisty and hilly it is.

I have tried a gyp or two also. The water injector that broke a valve comes to mind.

This is what I believe is happening:

The disturbed airflow is temporarily fooling the mass ariflow sensor. The MAF thinks there's more (or less) air coming in and the CPU adjusts the fuel maps accordingly. Since the car feels peppier, then the MAF must think that less air is coming in. Why? Many dynos have shown that Nissan fuel maps,or even most cars for that matter, are adjusted so that the fuel mix is slightly rich. In other words a bit more fuel than air from the ideal stochiometric mixture. This makes the car slightly less fuel efficient and less powerful, but only slightly. This slightly rich mix also keeps the car cool and safely away from the danger of detonation and a lean mixture which can be very harmful over the long run. The carmaker wants their motor to last a long time. The tornado fooled the MAF and the mixture is closer to ideal, the most efficient and powerful mode for the car.

This "fooling" of the MAF won't last long, however, as the O2 ultmately determines how the fuel maps should be adjusted, and it adjusts itself slowly. As the CPU watches the amount of O2 in the exhaust, it will adjust the mixture back to the slightly rich mixture it had in the 1st place.

I've been thru this several times when I've added modifications to my cars. I've done pop chargers and cold air intakes. After the change was made I always noticed an immediate difference, especially in noise. A couple of days later the noise would die down and the difference would not be so great. These intakes did increase power, and the CPU was really confused by the MAF reading initially. As time went on the car got quieter. In the end there was a difference because there was definitely more air coming in, but that difference was also accompanied by noise, and to me the noise increase didn't really justify the power increase.

Give it a week and your car will be right back to where it was before, especially since the tornado is not increasing airflow. The CPU will have accounted for the addition of the tornado's disturbed flow and you'll be right back at square one.

Things to keep in mind: That swirl effect. How strong is it really going to be when the air goes thru vanes into the throttle body, then shifted 90 degrees or so around in the intake manifold, then interrupted every so often from the valves closing and opening? You and I both know that Tornadoes thrive in the plain states. Wide open and un-inhibited.

Also, the air filter box for Nissan's 1.6 (GA16DE) is also the same one for the 2.0 (SR20DE.) If there really was a significant airflow restriction in that airbox, would Nissan use the same one in an engine that is 400cc s larger? Especially on the quite famous SR20DE?

CD

(last part):

codifus,

That's a trip!

I think the Tornado's effect will probably last, but we'll see. It's stronger than ever after 5 days, also quieter.

The Tornado in the 318 Dodge from 1986 didn't have a fuel mixture computer to fool, being carbureted, so the Tornado in there really worked. Unless there was actually some sort of analog computer messing with the carburetor. Even so, it kept the power increase.

Speaking of cabetooters, back when, there was a device called a Cagle which would compensate for leaky float valves by cutting back the fuel pressure at high vacuum. It was powered by the vacuum. It could save alot of gas, but not on cars with great float valves, which wouldn't have the going rich problem of the fuel level rising. If I remember it all right.

Then there was the Ramjet, which went in the PCV line and carbureted the blowby. You would tune it to the best throttle response.

So are you the guy that all the scammers go to when they need a glowing report?

Ed White