TORNADO !?!? ooooooooo

[CorollaINC]

Hey guys...have you heard of that tornado gas saver thing?

you see it on tv...i was wondering if it worked? if what they say is real about it..it should be good for our motors..im guessing since it revs soo high.. well let me know...gotta go get my PIIINE ONNNN!!!

[94_Rolla_Guy]

search it..... but in short its a waste of money!

[REN69]

Holy shit.. this question comes up every other week!

In short form, don't waste your money.

[SR5_4WD]

Yeah the tornado doesnt spin it just directs the air to spin in a circular motion. I saw a commercial on TV a few days ago, and they said it gives you a whopping 1mpg more fuel economy. What do you think. Is it worth it?

[freakinbox]

meh it would add up over a long long long period of time. Here is the question you ask yourself, do you do alot of km on your car? if you commute it might be worth it, if you just drive around the city it won't, and if your like me and drive tonns then it might be worth it

[doverville]

the theory behind the tornado is an intentional deception when used in the application of a gasoline engine. the explanation decribes when you swirl a two-liter bottle to make the water inside come out very fast. this works great when you have got to let one substance (water) out and another substance (air) in to the same container at the same rate. however, every single internal combustion engine is an open-ended system on both ends. think of a piece of pvc pipe that you are pouring water through. you don't need to swirl it to make it move faster - it's open on both ends - just like your vehicle. air comes in the intake and out the exhaust.

http://www.wcpo.com/external/dwym/c3b519.html

[519]

^^^pwned. its not worth the trouble. what if it shatters in your engine, the 1 mpg wouldnt be worth now would it.

[Liter]

It just causes more obstruction from letting air get into your engine.

[Flashmn]

Few things that will prove its a waste of money:
Swirling would end that the throttle flap.
Engines are designed to create a swirling motion inside the cyl, for combustion control.
Fastest way to get stuff out of the bottle or in the bottle isnt to make it swirl, its actually forcing it out with pressure (TURBOCHARGE!!! bwaahaha ) But seriously swirling doesnt make it faster.

Anyhow, at the end it wont do shit but make a dent in your wallet

[Joe B]

http://www.popularmechanics.com/aut...html?page=1&c=y



VORTEX GENERATORS
These devices, which are usually installed on the upstream side of the mass airflow (MAF) sensor, use stationary vanes or, on some devices, spinning blades to make the inlet air between the air cleaner and intake manifold whirl around in a mini-tornado. This vortex supposedly mixes fuel more thoroughly with air, which means the fuel will, theoretically, burn more completely in the combustion chamber. Trouble is, there's a lot of intake tract downstream from these devices designed to maximize a smooth airflow. Turbulence, coupled with the restricted airflow caused by the device, can only reduce the amount of air sucked into the manifold. Less air means less power.

Again, we tested two devices. The TornadoFuelSaver is a nicely made stainless steel contraption, available in an assortment of sizes to fit most vehicles. We installed it on our truck's intake tract immediately upstream of the MAF sensor. We purchased the second device, the Intake Twister, on eBay. It was crudely handmade from sheet-aluminum flashing and pop rivets. It looked like something we could make in about 10 minutes from an old soda can. The staff at UTI was reluctant to install it: The bent sheetmetal vanes looked as if they might break off and be digested by the engine. The device is one-size-fits-all, and is simply bent into a curl to insert it into the intake duct.

THE DYNO SAYS: Both devices reduced peak horsepower by more than 10 percent. The Intake Twister increased fuel consumption by about 20 percent; the TornadoFuelSaver provided no significant change.

TornadoFuelSaver
Tornadofuelsaver.com, $70
THEY CLAIM: "... an increase in gas mileage--up to 28%!!!" "Dynometer [sic] testing demonstrates an increase of 4-13 horsepower."
BOTTOM LINE: Normally, we want less turbulence in the intake, not more.

[freakinbox]

I have heard turbo's save you fuel, that might be why the turbo diesel jettas get better fuel economy than the non turbo ones.

[CorollaINC]

WELL thank yo very much..that has been a question for soo long..

[Flashmn]

Turbos save fuel huh....

.... Wanna know the truth? They dont! They increase fuel consumption

Heres how its played out...
turbo adds air with pressure, now what happens if you dont add fuel... you end up with a lean mixture and detonation... Now what happens to fuel consumption when you add more fuel to the more air you have, than stock air fuel quantities? Gee, it uses more fuel.

[kamesama980]

the turbo *can* save gas. reason being: its more efficient of a compresser than the pistons. meaning the turbo takes less energy to compress the same amount of air than a piston would. the problem is you still have pistons compressing air, so you dont get much benefit. miller cycle engines use this to their advantage (albeit typically with a supercharger rather than a turbo) by using the supercharger to pressurize the air, and leaving the intake valves open for most of the intake stroke of the engine. the benefit is around 50% better mileage and 25% more hp or something like that. mazda tried it in the millenia sedan, but didnt follow through after releasing it so its popularity died after a few yeas.

as for the tornado...BS. too many things in the way...like the throttle body (which totally destroys anything it does) and the change in vectors and velocities of the air as it passes through the intake plenum and manifold.

[canadianae92]

I dought your going to save on gas with a turbo, adding a turbo is like increasing you engine displacement, more air always= more gas.