Turbulator?

[MotoRandy123]

I had one of these on an old Super Sherpa. It seemed to increase torque.
Unfortunately I sold it with the bike a while ago. The 26mm one is the right
size for the output side of the throttle body but the injector is a little ways
away so not sure it will do much. Anybody want to try it, it's short money;
https://www.denniskirk.com/kolpin/turbulator-for-26-28mm-carbs-tu9.p172132.prd/172132.sku

[CROSSBOLT]

I almost went for the "Tornado" for a Subaru we owned a while back. It seemed to be an answer for a lot of things. I ultimately did not tumble due to mixed reviews and CFO objections (wife). While I have mixed feelings about Consumer Reports (i.e.: I do not always agree with them) they DO objective testing and seem at least somewhat qualified to compute fuel milage. Their conclusions about the Tornado were it did not improve fuel mileage and actually degraded in a couple of tests on specific vehicles. This Turbulator is a similar product and is way cheaper than the Tornado size for size. That means like what you said, Randy, "it is short money" to try it.

Karl

[MotoRandy123]

 I have a tornado I bought for my old CRV. It slowed the air down a lot as it
nearly blocked the intake. It saved gas because you could only accelerate slowly!
I think it helped on the old 8 cylinders it was developed on but more modern
engines are already well designed.

 This turbulator helps flow. If you have a tube and try to flow air through it only a
small area will flow (say 2" tube flows 1" diameter of air). If you add some turbulence
a lot more air will flow (say 1 1/2"). That's the theory anyway. I've heard of it curing
flat spots and my impression on the Super Sherpa was it made it more torquey. It
definatly did something. Many times there isn't a measurable difference but seat of
pants feels better (IE K+N makes most bikes feel smoother).

 The Yager has a flange at the head but the fuel injector is very close to it. You'd need
something like this with a 28 mm hole;


This is the input;

 

[CROSSBOLT]

There may be something to this in some instances in boundary layer control. Like some aircraft with vanes in a row parallel to and just forward of ailerons to improve roll authority. However, most of those installations were after many trials and error detection. Same as this. Only experimentation will prove or disprove. Go for it!

Karl

[Yager200i]

Hi, MotoRandy.

Do you have a part number for this, or is it something we'd have to construct ourselves?

[zombie]

The same type of items are used alot in 2 stroke engines. Mostly race engines, and all of them are designed for each particular engine. If these work at all it is because of the "trial/error" as stated above.

Directing air flow does have advantages but it has to be done at the right place, and at the right flow rates. It is something worth experimenting with if you like doing that sort of thing.

The concept is allowing more air to enter the engine while maintaining the correct air/fuel ratio.
Carbed bikes may need re jetting, and injected bikes may need a few miles to re-tune. That's only if the part works.