gordon_dunn Posted July 30, 2019 Share Posted July 30, 2019 Anyone tried a smoke system on a Top 80 Miniplane? Tempted to have a go... may only use it a few times, but looks really cool! GD Quote Link to comment Share on other sites More sharing options...
gordon_dunn Posted August 1, 2019 Author Share Posted August 1, 2019 Decided against installation of this system..... as it interferes with the 2 stroke cycle on the Top 80... Smoke Systems High performance two stroke engines scavenge the exhaust stream in order to increase power output. If smoke producing fluids are injected into the exhaust stream before the muffler i.e. right at the cylinder they will be drawn back into the cylinder and burned along with the ordinary fuel/oil/air mixture. This may cause the engine to overheat. That is, if you believe that mixing the smoke fluid with the oil/gas mixture and then running it through the engine would not be a problem, then it may be OK. Consider, however, that adding additional oil, essentially, is what can cause overheating. If you install a smoke system, the fluids should be injected AFTER the tuned scavenging chamber, not before. A properly installed smoke system in the Top 80, for example, requires the injector to be placed just before the muffler rather than adjacent to the cylinder (the scavenging system). Quote Link to comment Share on other sites More sharing options...
steelmesh Posted August 2, 2019 Share Posted August 2, 2019 In addition and in general: injecting something in the exhaust will change the acoustics of the expansion chamber changing the way the engine performs. I learned about this when I was looking to modifying a gp1200r 2 stroke waverunner. Details here: http://greenhulk.net/forums/showthread.php?t=13613 Quote Link to comment Share on other sites More sharing options...
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