Vortex Generator for Mazda 86-91 rx7 13b+hp+mpg
 

Okay so i seen this item on ebay and was wondering if this product really works? Anyone ever used one before on there 87 or 88 mazda? :101384_l:

Holy crap! NO!

Search!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

it depends, i used one along with my tornado, electric supercharger (leaf blower), and my fake blowoff valve speaker....i thought it made a huge difference

:rofl:

You forgot about the glow in the dark muffler tip that adds 20hp

it depends...
the mod can be "stacked" and increase the efficiency of the first vortex generator

For example - if you have one vortex generator, it creates the turbance on the engine right?

But if you have two, it will "pre-spool" the turbance and then when it hits the 2nd vortex generator, it will increase the speed of that already spool'ed turbance.

It is a VERY high end setup - but if you do that, PLEASE MAKE SURE you get AT LEAST a walbro and 720 secondaries... Also, you might want to install one or two in the exhaust - but MAKE SURE it is installed BACKWARDS - that way you can reverse the turbance effect and have the exhaust gas come out straight... if not - all the gas forcing on the exhaust pipe could cause it to explode!

thread about this YESTERDAY

mod power engaged, *thread locked*

almost

it depends on how many watts the vortex generator puts out... it could be a strain on your alternator

Yes or NO?
 

So what it seems like to me is that no one really knows if it works. Well i have a Rp fuel pump on the car and a G-force computer. So fuel problems is not a factor(i think)?

Be silent...

^holy...READ!
They just had a thread on these things yesterday and several posts were made with tests that had been performed and these things actually DECREASED performance.

Blow through a BIG straw, pretty easy right? Stick a paper ball in there...good comparison.

Those devices only help non tuned intake runnered vehicles, and have no place in modern cars except to make the people that sell them money. Most of those type devices actually lower HP and availble torque.

They do not make more power, because they do not change the emissions in the car. You can't make more power without raising or lowering emissions.

Thread closed.

Use some common sense.

Further backing on this:
Right from popular mechanics... Mike Allen, September 2005 Issue
"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."