Does anyone know if these things really work? Here is a quote from one of the many producers out there;

"Vortex-R model generates a spiraling tunnel of air which travels through your intake air tubing with less restrictions delivering more available air to the engine. The result of less restrictions in the intake tube and more air to the engine is better gas mileage and more power! No bull, just physics!"

 

its a gimmick that does not work. all bull.

 

Thats what I thought, it semed too cheap to really work!

 

more air needs more fuel.. unless it comes with new injectors, fuel pump and a programmer its junk

 

Well put

 

i love how people get mezmorised by spinny things. if you get something obstructing the air path, your hurting the air flow. dur.

 

but maybe you could get that.. and higher flowing injectors and a custom flash.. maybe that would do something????

 

I have done a lot of research on 'vortex generators'
and do not believe these aftermarket devices
placed ahead of the throttle body
work to reduce fuel consumption.

However,
it should be pointed out
that the new 5.7 V8 iForce in the Toyota Tundra
the 2006+ Ford 5.4V8s
and several BMW model engines
are using 'swirl valves' near the end of the intake runners
to improve part throttle torque and fuel economy.

It should also be pointed out that you need just the right amount of swirl.
Too much and fuel droplets 'wet out' on the outside walls of the cylinder bore.
Too little and combustion burn speed slows down and pinging becomes more likely.

On 2nd Gen 5.2/5.9 Magnum V8s
it 'might' be that putting dimples
or tiny aluminum wings set at the maximum vortex generation angle
at the end of the intake manifold runners just downstream of the fuel injectors
might improve 1500-2500 rpm part throttle operation.

Wings set at the maximum vortex generation angle look like this:



Here is an interesting pictures of a vortex coming off the tips of the Space Shuttel wings:



the little wispy line off the wing to the right in the picture is a vortex stream.
You will notice that if you fly a lot that most of the new commercial aircraft have vertical
additions at the wing tips to block this stream of vortexes, which increase fuel consumption.

 

the vortex idea may work, yes i agree, and i also agree that it will not do anything when you add it before the throttle body. If for no other reason but because you loose the vortex through the angle changes the air goes through. Now you gave the example of the bmws with vortex makers at the end of the runners...that may be more logical, because it does not have any place to go but straight.

 

Those things are