Does tornado fuel saver work??

[nmendozajr]

I have an 86 f350 dually eith a 7.5 liter gasoline. I know it is a big motor and truck, but I am looking for something to help on gas mileage. i get about 8 mpg now. I saw something on the tornado fuel saver but I was wondering if it is worth the investment.

[amac209]

save your money and get a good k&n filter. also do a good tune up plugs,wires, cap/rotor. i assume this has a carb. clean up the carb, adjust choke, idle mixture & speed,timing, tire pressure. make sure the fan clutch works. that tornado this is a scam you could fill your tank for the same price.

[wycowboy]

Just so you know. I'm also trying to increase MPG . But the EPA has found NO aditives or aids that do much or any thing that increses MPG, They recomend a good tune, regular mant, and better driveing habits. and the last is the most important. I was diving a 92 f-350 460. and it got 10, my advice, which I would follow my self if I had the cash would be to go 6L diesel, seems the best of both towing power and fuel economy

[97chevyman]

I would not use a K and N filter, there are better setups out there. On another forum which i post on, a person had a construction company, and would spend approx 1000 dollars in air filters a month for his fleet. He tried K and N and sent in an oil analysis before and after the change. Silicon levels ( dirt ) in the oil almost thripled. Tymar makes a nice intake. Is your truck carbed or injected? My memory is a little fuzzy on when ford switch, i have heard 86 and 87 both. If it is carbed, maybe get a better carb, such as a edelbrock 750. I know this sounds strange to put a larger carb on your engine, but with the use of a larger carb, you are not opening your secondaries, only primaries, thus saving gas. Plus if you get a cold air intake, and throw on dual exhaust with headers, you should expect better MPG. Also a good truck cam would not hurt. The easier the motor can breath, the better fuel milage you will get. As for the exhaust, if you decide to put on duals, have the installer install x-pipes. For then you can run dual 2.5 inch pipes and still have tons of low end torque. The reason for this is exhaust scavenging. Here is the easiest way i know on how to explain this. When a semi is going down the road, there is higher pressure in front of him and lower in the back. When your exhaust valve opens shouves air out, it goes down the pipe, then by the time the next cylender blows out the exhaust, there is a low pressure area right where the exhaust valve is making air come out easier, more torque and engine power on low end. Well with larger pipes, more volume, so less pressure, making better top end power and better MPG, no low end torque. With the x pipe, it makes 2.5 inch pipes scavenge like they are 1 7/8 pipe, best of both worlds. Good low end torque, good gas milage, good high end for passing power. The RV cam will be open longer than the stock cam, making the cylenders breath better, making more power, and with more power for the same fuel, equals better MPG. Hope this helps.

[nmendozajr]

thank you all

[magnum357]

on two different vehicles i have used the tornado and gave both of them saved on fuel and pep

[danielsatur]

I found a video, see www.youtube.com/watch?v=bWFvBG6CUHk

The air is metered by the MAF/IACT sensors, the ECU/PCU controls the fuel pluse for the injectors!

It might work better on a old school car, were the Air/fuel mix is in the carb.

[MagicRat]

The Tornado is nonsense. It's a direct sales gimmick, which does not work. It is a re-hash of an older idea. 30 years ago, an almost identical item, sold under that brand name "Swarup" was sold. It also was proven not to work.

These products do not work because a swirl or turbulence is not required to atomize fuel. Theoretically, too much turbulence is detrimental to carburetor venturi function, imo.

Another issue is the presence of throttle blades. Even if turbulence is helpful int he intake tract, throttle blades would eliminate it.

Turbulence is valuable as the intake charge goes into the combustion chamber, but in a specific way. Cylinder heads and combustion chambers are all equipped with shapes and features to achieve desirable turbulence. Imo, a primitive device placed up by the air filter will make no difference here.

K&N advertises that their air filters provide the same benefits (mileage and power) by, in part, reducing turbulence in the incoming air, just the opposite principle as the Tornado.

[magnum357]

hello magic rat and daniel satur the tornado worked with our vehicles were new

[Davescort97]

I'll go along with MagicRat. It is a total scam.

[magnum357]

So u calling me a lier davescort97 and until u try it davescort97 u shouldnt knock it, i have had it in two new vehicles.

[MagicRat]

Originally Posted by magnum357

So u calling me a lier davescort97 and until u try it davescort97 u shouldnt knock it, i have had it in two new vehicles.

Nobody is calling you a liar. But personal opinion does not mean much in an objective sense. If you say it has improved things, let's see some numbers.
How much faster is your car? Have you done some acceleration runs for comparison?
How much has your mileage improved?

There is much evidence, both in terms of engineering theory and in real-world results to say this product is a scam. Based on that evidence, davescort does not need to try it. Others have already done so and objectively reported on it. So, if you believe it works, please cite other websites or objective research information to back you up, before accusing us of calling you names.

[magnum357]

i am giving my opinion i am allowed to do that and as it was .there was some difference special with the 4clynder we had a v8 u can either take or leave it but if u dont try u wont know will uthat is my opinion.

[Blue)(Fusion]

You are more than welcome to give your opinion on this forum. But the fact of the matter is, seat-of-the-pants testing means very little to us. To prove your point, you'd need to provide before and after mileage averages, even dyno results. Without this, I agree with the above posters arguing against it helping anything.

Now I'd like to give my opinion as to why. The tornado is a restriction in the air intake system. Turbulence does have benefits like MagicRat was stating above. A turbulent airflow has less friction against surfaces as compared to a laminar airflow. But the distance the air travels between where the device is installed and the throttle plate would create a minimal difference. The tornado takes up space in your air intake system, reducing the maximum throughput of it. You won't notice this at low RPMs, but if you went WOT, you likely will. The device has angled blades which, when the air strikes them, slows the air down - therefore, it is counter productive.

I am no scientist, but I am a pilot and have been trained for the last 4 years how airflow is affected and much oof the science behind flying a plane is involved in cars (i.e. venturi effect in a carb is what makes wings create lift).

If you really want to improve gas mileage, see if there are any underdrive pulleys available for your truck. These slow the accessories down, reducing parasitic drag. Do proper maintenance, use the recommended fluid specs, and drive at a reasonable speed. The faster you go, the parasitic drag is increased exponentially requiring exponentially more power/fuel to keep it going at that speed.

[magnum357]

thats the point both vehicles did have intake systems in it and i am sorry i am not a michanic i am going by what me and my husband felt sorry.