SuzukiSavage.com - turbulator, revisited

JohnBoy

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turbulator, revisited
02/25/10 at 14:43:01

Here is a simple way to build a durable, high quality, turbulator that has very low airflow resistance.
The honeycomb cell material is from Saxon Computer and is sold in 5x5 panels of hard plastic. Product description below:
Use these 1/8" cells as a fanless intake for precision control of incoming airflow. Can be used as fanless intake for CPU, video card, hard drive or chipset. Many industrial applications.
Cut to 5 x 5 inches, Larger pieces can be supplied on request.
3/4" thick (6:1 ratio) $6.99
The brass ring is made from 1" X1/32" stock sold at Ace Hardware $2.80.
The ring and the honeycomb are held together with quick-set JB Weld, the only glue-up involved.
The weight appears to be about 1/2 ounce. There is enough honeycomb left over to make at least three more.

With basic hand tools and a plumber's torch you can build this in a couple of hours. Total cost with shipping...$15.00

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bill67 Serious Thumper Offline old tired Posts: 8517 genoa city wisconsin Gender:	Re: turbulator, revisited Reply #1 - 02/25/10 at 15:17:11 Let us know how it works out on the bike.
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Charon Serious Thumper Offline Posts: 1811 Harvard, NE Gender:	Re: turbulator, revisited Reply #2 - 02/25/10 at 15:19:56 So, what it is supposed to do? Is it supposed to smooth airflow? Or cause turbulence? And given that it does whichever it is supposed to do, what is the overall effect supposed to be? What before-and-after measurements are you planning to make in order to see if it works?
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28886 L.A. California Gender:	Re: turbulator, revisited Reply #3 - 02/25/10 at 16:02:06 Cool stuff JB Although, I'm not liking the honeycomb, them little stars inbetween the straws will cause some drag. But it's affordable.
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28660 Tucson Az Gender:	Re: turbulator, revisited Reply #4 - 02/25/10 at 16:17:08 Don't know if it will work, but... that's a snazzy way to do it!... and no worry about one straw getting loose and taking a trip...
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JohnBoy

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Re: turbulator, revisited
Reply #5 - 02/25/10 at 17:03:32

I have one in the bike at the moment made from soda straws and pvc.

"So, what it is supposed to do? Is it supposed to smooth airflow? Or cause turbulence? And given that it does whichever it is supposed to do, what is the overall effect supposed to be? What before-and-after measurements are you planning to make in order to see if it works? "

Charon, there are several post over the last year from members.
Basically, it smooths airflow between the intake filter and the carb.
I don't have access to a dyno and I don't have standard jetting or air cleaner; but, seat of the pants tells me that it is stronger and has more torque. Diamond Jim found the same results. This mod has a "cleaner" cross section than the pvc version.

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« Last Edit: 02/25/10 at 19:25:44 by JohnBoy »

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28886 L.A. California Gender:	Re: turbulator, revisited Reply #6 - 02/25/10 at 17:30:54 Don't matter if it really works or how much or even why, you feel it. The turbulator is a misnomer I coined for it. DJ liked it, that's cool. The purpose is to smooth and straighten the air flow. I got the inspiration from the wright brothers wind tunnel, dj looked it up and got the info from nasa to make it right.
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diamond jim

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Re: turbulator, revisited
Reply #7 - 02/25/10 at 21:29:36

Each tube in the honeycomb does wo things. First, they straighten the air. Second, they accelerate the air. The summation of multiple tubes straitening and accellerating the intake air improves carb function by pulling fuel up through the jets and atomizing the air. It also improves cylinder filling.

As far as improvememt goes, my experience is that it takes at least a 10% difference before I feel it. The turbulator didn't just make a noticeable difference, but rather a significant difference expecially at low to mid range where most of my riding is done on the LS650.

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PerrydaSavage Serious Thumper Alliance Member Offline Riding "The Rock"! Posts: 3522 Republic of Newfoundland Gender:	Re: turbulator, revisited Reply #8 - 02/26/10 at 00:37:46 Cool! A "smoothed out" airflow is what's known in aviation and/or ventilation circles as a laminer airflow ... Am interested to hear how this mod works out!
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bill67 Serious Thumper Offline old tired Posts: 8517 genoa city wisconsin Gender:	Re: turbulator, revisited Reply #9 - 02/26/10 at 02:35:42 A smaller carb will give you more low in power but you will lose on the high end,To me this is like putting on a smaller carb,It also makes it richer because you are taking up air space. A larger cab will give you more high end power,but you lose on the low end.
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Charon

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Re: turbulator, revisited
Reply #10 - 02/26/10 at 07:24:21

Bill's comment sort of echoes my thinking. Whether you straighten the airflow or not, you restrict the intake tract at least a little because of the space taken up by the walls of the tubing. That restriction seems exactly analogous to a restricted air filter. The result will be a slight increase in pressure drop, and a slightly reduced pressure in the carburetor. That will cause a slight richening of the mixture because the lower pressure can pull just a little more fuel through the jets.

As soon as the laminar airflow enters the venturi, its turbulence will return. Then it will pass through the butterfly, and more turbulence will be introduced (a good thing, as turbulence helps mix the fuel and air to produce a uniform mixture). It will pass through the intake port and be split to enter the two intake valves. If all goes well, there should be a "swirl" produced as the air passes into the cylinder. Suzuki used to brag on their TSCC Twin Swirl Combustion Chamber, though I don't remember whether they claim it for the S40. That was probably because each of the two inlet valves produced its own swirl.

Turbulence is extremely important within the combustion chamber, as that is the way to insure maximum fuel burn and efficiency. Many combustion chambers are so designed that at TDC the piston almost touches the head, producing a "squish area" that "squishes" the fuel-air mix into the main combustion area near the plug.

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Eschew obfuscation.

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28886 L.A. California Gender:	Re: turbulator, revisited Reply #11 - 02/26/10 at 08:56:06 While I think you're on track with your assumptions of increased restriction netting higher fuel flow... You don't give any credit to the straightened air flow yielding greater momentum thus pushing the air thru the carb and packing the cylinder better.
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bill67 Serious Thumper Offline old tired Posts: 8517 genoa city wisconsin Gender:	Re: turbulator, revisited Reply #12 - 02/26/10 at 09:08:01 The air is being sucked why would the air be unstraight
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Routy Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 2280 Winston Oregon Gender:	Re: turbulator, revisited Reply #13 - 02/26/10 at 10:43:14 I myself don't believe in much of this, but seems this in in direct contradiction to the "more turbulent air making for better, more efficient air fuel mixture" that is used in the very popular "Toranodo" propellers air flow system, that so many swear by. Myself, I like water injection,....and then supercharge it !
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thumperclone Serious Thumper Alliance Member Offline PGR rider riding with respect Posts: 6067 Grand Junction Colorado Gender:	Re: turbulator, revisited Reply #14 - 02/27/10 at 18:24:40 The Jet Scream(rf2inc.com)product description says their honeycomb "laminizes" the air.. at best you may gain 10% over stock...
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