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Model Forum / Radio Controlled / Air Models / November 2006Smoke from a Magnum 61
I am trying to add smoke to a Cub I have with a Magnum 61 2 stroke on it. I have poked around looking for smoke mufflers, and I've found plenty for OS, but I'm not saeeing any for a Magnum. The engine is already mouted sideways, and I've got a Pitts-style muffler on it, so it seems like it should be a bolt-on affair once I find a muffler. Any tips on where to get one? Any tips on smoke in general? Thanks, Steve The fact is, it's nigh impossible to get decent smoke from a two-stroke, unless you stuff the fuse full of oily rags and light them off just before takeoff... There is a downside to this, as it's usually a one-shot deal, and it's frowned on at most AMA clubs Cheers, Bill http://www.customcutgrafix.com/ > I am trying to add smoke to a Cub I have with a Magnum 61 2 stroke on > it. I have poked around looking for smoke mufflers, and I've found [quoted text clipped - 5 lines] > Thanks, > Steve > I am trying to add smoke to a Cub I have with a Magnum 61 2 stroke on > it. I have poked around looking for smoke mufflers, and I've found [quoted text clipped - 5 lines] > Thanks, > Steve In all seriousness, Steve, I've yet to see decent smoke from a two-stroke.... The exhaust hasn't the necessary heat... But there are smoke mufflers available for the OS engines, as you say. Check the spacing on your engine's attachment points... Magnums are pretty much OS clones, and the smoker version for the OS .61 may very well be a drop-in fit.. Good luck, Bill http://www.customcutgrafix.com/ > In all seriousness, Steve, I've yet to see decent smoke from a > two-stroke.... The exhaust hasn't the necessary heat... But there are smoke > mufflers available for the OS engines, as you say. Check the spacing on > your engine's attachment points... Magnums are pretty much OS clones, and > the smoker version for the OS .61 may very well be a drop-in fit.. Ok, I found that most of the smoke I saw was on 4 strokes, I just figured that was because it was on the bigger planes and thus the bigger engines. I'll keep exploring... Thanks for the help, Steve >> In all seriousness, Steve, I've yet to see decent smoke from a >> two-stroke.... The exhaust hasn't the necessary heat... But there are [quoted text clipped - 10 lines] > Thanks for the help, > Steve -------------- IIRC, the smoke mufflers for OS engines should bolt right up to the Magnum engines. After all, Magnums are copies of OS engines. Ed Cregger >> In all seriousness, Steve, I've yet to see decent smoke from a >> two-stroke.... The exhaust hasn't the necessary heat... But there are smoke [quoted text clipped - 5 lines] > figured that was because it was on the bigger planes and thus the > bigger engines. I'll keep exploring... You can get decent smoke from two cycles, but you need to get the smoke oil preheated, before it is injected. One guy I saw had taken some brass tubing, and had wrapped it in a coil, pretty small, and put the inside his muffler. The smoke oil went through the coils, got heated up,then was injected into the exhaust right as it came out of the cylinder. It also needs to mist the oil, very well.  SignatureJim in NC http://www.tmenet.com/pdf/Secret%20Smoke%20Success%20Tips.pdf A lot of useful info there. SignatureDan AMA605992 KE6ERB http://www.fubar1.net "I've heard the screams of the vegetables..." Take out the "trash" to reply > >>> In all seriousness, Steve, I've yet to see decent smoke from a [quoted text clipped - 16 lines] > the coils, got heated up,then was injected into the exhaust right as it > came out of the cylinder. It also needs to mist the oil, very well. |
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