Ok here some help guys this is the simple way to do it but I do recomend a pump and if you are going to use saito I recomend the EJRS Smoke muffler they rock my father and I made them about 2 years ago from thinking how to get the best smoke. We put the smoke nipple right on the manifold and made it from thicker metal and it has a few groves to keep the heat where it needs to be(on the smoke nipple).
Check it out I have ran this setup on most of my planes and it has not failed for over 2 years.
I have in cluded a pic of the mufflers and a B-17 that has four installed I have vido of it in action e-mail me if you want it. I do not know how to upload it here.





Happy Flying!!!
Eddie

that looks great! any tips on how to make that metal piece w/ nipple that wrapps around the threaded shaft? what did you use to stick it there? weld?

what about the normal exaust? where did you relocate that? i can't quite tell from your picture

thanks again

Do you guys sell those, or did you just make them up for yourselves? If you've got them for sale, what Saito engines do you have them for, and how can I get one? PM me if you need to.

yeah i'd buy one too

Hi guys I have sold them here on RCU, I sell them for all the SAITO line, Just let me know which one you want it for and I will send you the info. Feel free to PM me or write me here either way I will get back to you. Here is the post I use when I sell them:




This is a Direct Replacement part for all you SAITO engines or comparable Size engine. All that is required for installation is replacing the Muffler Manifold that comes with you original engine.(See Picture) The way we came up with this new idea is very simple, a smoke fluid inlet should always be at the hottest part of the muffler and that is exactly what we accomplished by putting it on the manifold. This auction is for the new Manifold, Pressure tap, and all needed instructions. This product has been tested and performs excellent in all conditions. We do include all Parts and literature needed for installation ( some parts from original Manifold Needed, No smoke pump or additional accesories included). Please feel free to ask any questions you may have. Check my Feed-back People love this money saving smoke muffler!!!.

That little piipe is great, Going to have to make a few of those for my saitos (It's great working in a machine shop)

hey make one for us!!! i pay you what its worth... just need to know how to hold it on there

What do you mean hold it on there?

There is no holding it on there, It is a new threaded pipe with a section for the nipple, I'm going to make one for a saito 100 If I have time I'll try to make a few but I work in a manual section and takes a little time to make, The CNC guys could pump them out but could never get them to set it up for a personal project. They will be stainless steel because that's all we use at my job. Should have a few dome this week working through luches.

Dauntae

All you have to do is to drill and tap the original with a standard pressure nipple

The same effect could be achieved tapping the original exhaust port. The adapter you are interested in is a bit thicker, but that isn't necessary with a 4 stroke. They produce more than enough heat to vaporize the smoke oil. You only need to be creative if trying to smoke a 2 stroke. 4 strokes have 2 ignitions per every revolution. 2 strokes only have one ignition per revolution. 2 ignitions = twice the heat. That is why you don't need anything special to get good results. If you really feel gung ho, IMHO there are 2 ways to improve the amount of smoke produced: 1. Heat the oil closer to its flash point (240F) before it enters the muffler 2. Make the muffler hotter to vaporize more of the oil as it enters. Try tapping the original exhaust port first and check the results before going all out. Minn's article tells you exactly how to do it. With 4 strokes, smoke is a piece of cake.

Mods

so you're telling me i can drill and tap the threaded section of my muffler and it won't be leaky? i just see it leaking out unless i carefully dremmel the threads off around the hole ... need a tight fit right? anyway the screw on thing just seemed like it would help keep the pressure cause its smooth on top.. i really don't know what to do

i'm trying to post a picture of the mufflers but it says there was an error saving the file to the disk... don't you post pictures though file upload, or somewhere else?

No, not the threaded section. When the muffler is fully screwed/attached to the engine, look to where the exhaust and muffler are connected. Tap just to the outside of it. The theory is to inject the smoke oil where the exhaust gas is hottest (i.e. as close to the engine exhaust port as possible). Secure the nipple with JB Weld. This is essentially the same technique I used on my muffler. You will not have any leaks. I'm sure someone will chime in soon and can upload pictures of this. This muffler is for a 2 stroke but the location of the tap is similar on a 4 stroke-right outside the attachment point:

No, This is not true. (its simple to understand that...)

two stroker: the fuel ignites evry time the piston is at the top of the cylinder.
four stroker: the fuel ignites every other time the piston is at the top of the cylinder...

> Therefor, The two stroker produces much more heat then ar normal four stroker.

edit: i also want to add that the four cycle produces more heat made from friction then a two stroker. but this heat is very small part of the total heat. the overall heat production is much bigger on a two stroker

Tapping your original Manifold will not work it is too thin and does not have enough to thread the presure fitting on to. Same goes for the muffler.
Trust me guys I have tried this many times many ways. It might work for a couple of flights and then it will become loose and leak. I have even tried with JB weld same effect works only a short time.
Try it on your own just in case some one does not belive me.
Thanks guys,
Eddie

I am always willing to improve my knowledge. Since you seem to be an expert in this area, why is it that 4 strokes always produce better smoke than 2 strokes? I've even placed temperature gages on both and verified that 4 stroke exhaust is hotter than 2 stoke exhaust. Have I missed something in my analysis? I've seen this many times and up until now I thought I knew why.

Mods

I agree with Mods-R-Me

´
Expert.. no.. its just a well known fact

What part of this is it that you dont understand?

oh geez guys.............. did you all see the video phil hill posted under the member videos of his saito 120/ ultimate w/ smoke? its rad... i can't wait to set mine up

Expert.. no.. its just a well known fact

What part of this is it that you dont understand?

[/quote]

Oh, I understood all that was said and it was very well explained. Thanks for correcting me on the ignition cycles of both engines, but I didn't see an answer to my question. I am trying to understand why if the ignition cycles of the engine types are as stated why do 4 strokes produce better smoke than 2 strokes if it is not heat related. By that reasoning 2 strokes would produce hotter exhaust, but they don't. I'm not the smartest guy in the world so I need a little bit of elaboration on the subject.

Thanks,

Mods

Oh, I understood all that was said and it was very well explained. Thanks for correcting me on the ignition cycles of both engines, but I didn't see an answer to my question. I would like to know the facts [sm=wink.gif] on why 4 strokes product better smoke than 2 strokes if this is not heat related. I'm not the smartest guy in the world so I need a little bit of elaboration on the subject.

Thanks,

Mods

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Rply blu_moon
Ohh i see... im sorry to say that i dont have that much experience of smoking systems. Perhaps someone else can try to figure out why 4-c produce better smoke then the warmer 2-cycle. Thats a good queestion!

This might answer your question, I found it in another thread written by Geistware
Dauntae

Oh, man. Thanks Daunte!

i agree with the echaust explenation, but "2 strokes and 4 strokes generate the same amount of heat energy during combustion." is totally wrong.