need help picking a engine
09-10-2012, 07:51 AM
#1
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Location: Cedar Rapids, IA
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need help picking a engine
im looking for a 4 stroke glow engine that i can run smoke out of. the engine needs to be some where in the size range of 1.00 to 1.25 i think a 1.5 would be to big. my challenge is ive never ran a smoke kit and im haveing a hard time finding a engine that size with a smoke muffler to fit it. any help would be appreciated
09-10-2012, 08:51 AM
#2
RE: need help picking a engine
It's not the engine, it's the muffler.
You need to find a decent smoke muffler (slimline or similar) then match what's available to what ever engine it fits.
Something like this:http://www.chiefaircraft.com/sli-4001s.html
Something like this:http://www.chiefaircraft.com/sli-4001s.html
The secret of good smoke is heat... heat in the muffler. 2 stroke gass engines are the best IMO
Four stroke glow engines don't generate the same heat so you'll need some type of pre heater coil. As mentioned, some smoke mufflers have this built in but from my experience, there never enough heat! So you'll possibly end up running a coiled copper pipe around the cylinder head, to pre heat the smoke oil, before it's heated further by the coil inside the muffler... before being injected.
That could sound like a lot of heating... but heating is good.
That could sound like a lot of heating... but heating is good.
Mucho experimenting, I did... then came to the conclusion that wiping all the smoke s#it of the plane afterwards was a good enough reason not to smoke!
Enjoy.
09-10-2012, 08:59 AM
#3
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RE: need help picking a engine
well the plane i have is a crop duster so i would like smoke to make it look like im spraying crops. do u have any idea where to find smoke mufflers at i looked at tower hobbies and they didnt have any
09-10-2012, 09:30 AM
#4
RE: need help picking a engine
There was a link in the post.
Here it is again: http://www.chiefaircraft.com/radio-c.../slimline.html
OS or Saito engines are listed.
See all and choose the one's marked smoke.
Couldn't be simpler than that.... unlike the cleaning.
Here it is again: http://www.chiefaircraft.com/radio-c.../slimline.html
OS or Saito engines are listed.
See all and choose the one's marked smoke.
Couldn't be simpler than that.... unlike the cleaning.
09-10-2012, 02:40 PM
#6
RE: need help picking a engine
It's not hard to make your own smoke muffler. Our good friend Minn Flyer left this behind.
http://www.rcuniverse.com/magazine/a...article_id=455
David
BTW, Have you thought about a DLE 20? gas engines have higher exhaust temps and smoke better.
http://www.rcuniverse.com/magazine/a...article_id=455
David
BTW, Have you thought about a DLE 20? gas engines have higher exhaust temps and smoke better.
09-10-2012, 03:45 PM
#7
Senior Member
RE: need help picking a engine
ORIGINAL: daveopam
BTW, Have you thought about a DLE 20? gas engines have higher exhaust temps and smoke better.
BTW, Have you thought about a DLE 20? gas engines have higher exhaust temps and smoke better.
A gas Burning Saito will also produce a lot more heat than a glow ignition Saito.
09-10-2012, 05:07 PM
#8
My Feedback: (66)
RE: need help picking a engine
two ways to do this.
Run a Saito 125. take some souper soft copper tubbing of correct size. Run it 2-4 times around the engine cylinder near to top of the engine. get a smoke muffler. or coil more tubing around the muffler headerr and the muffler. Run your smoke fluid thru the tubing before it is injected into the muffler exhaust. remember higher pressure with a tiny hole to atomized the oil.
Now if you dont want to do that the buy this product!
http://aero-model.com/Smoke-EL-Carbo...arter-Set.aspx
Run a Saito 125. take some souper soft copper tubbing of correct size. Run it 2-4 times around the engine cylinder near to top of the engine. get a smoke muffler. or coil more tubing around the muffler headerr and the muffler. Run your smoke fluid thru the tubing before it is injected into the muffler exhaust. remember higher pressure with a tiny hole to atomized the oil.
Now if you dont want to do that the buy this product!
http://aero-model.com/Smoke-EL-Carbo...arter-Set.aspx
09-11-2012, 08:56 AM
#9
Senior Member
RE: need help picking a engine
And contact Bruce Fischer down in Iowa City for an engine. brucercengines.com he is the president of the Aerohawks. He has several large 4S engines available, he runs a few YS engines in his planes and is really good with them.
