Brilliant video, very helpful, thank you. I tried the PPGSmoke system, & found that it was lacking in a number of ways, firstly the lid with check valve was sticking, second the 1 litre volume is far too little for a Rotax 582 & third the pump is so under-powered that it can't even pump the fluid up to the exhaust. Not to mention that I didn't even get a reply from them when I queried the lid check valve. Waste of my hard earned cash IMHO, maybe it would be sufficient for a PPG, who knows? I've now ordered components to put a system similar to yours together. Couldn't get the Sullivan pumps here with ridiculously horrendous import duties, so have gone with a different pump, & instead of a needle valve to regulate flow I've gone with a way of regulating the pump speed. I'll report again when I have it put together! So many thanks for taking the time to put the video together, very helpful. Especially when others were saying I'd need around 4 ltrs (120fl.oz) of fuel per minute!! Looking forward to proving them wrong!

awesome vid. very informative. found you from tucker gott comments section. I'm researching and building my own system currently for my moster 185. smoke is my next mile stone. gopro was milestone 200hrs. Smoke will be added when my new exhaust reaches warranty expiration next year. I managed to get 150hrs out of a My2019 exhaust, the notorious cracked out exhaust that plagues all prior 2020 year model mosters, finally caught up to me. I've built my own injection nozzle so far from a drilled out an-4 aviation bolt that had predrilled holes both head and threads for cotter pins. The head of that bolt is going into the exhaust chamber and the shank and threads with a spacer will be on the outside. I used an indexed bit drilled size 54 to go completely thru the bolt head to tail end. Installed a clipped cotter pin jammed it in the center hole and tested with baby oil in a jar. I get a perfect split stream from the cotter pin holes on each side of the bolt head. Next I'm going to fab up or find a thin washer to bend into the streams to deflect and hopefully fan spray each stream as it exits the bolt head. I was talking with the fella Harlan who runs bad dog smokes and he was insisting I drill the hole in the exhaust very near the exhaust manifold near the head....if I were to use his injector. He didn't like the idea when I sent him a copy of your other video on the powered parachute trike where it was injecting into the muffler section. I had concerns like you mentioned here with pressure wave and engine rpm alteration during operation. He's stopped replying since. So I decided to drill the bolt and forge ahead with my own plans. So just to confirm, you recommend injection after expansion chamber or just before expansion chamber? I've not located the hole yet, still researching as mentioned....and testing. Cheers!

Super helpful! Thank you!!!

Very clear and helpful video, thank you. I'm watching many videos on adding this type smoke system to a 2-cycle PARAMOTOR exhaust. I see most online videos showing an installation by tapping into the exhaust pipe very close to the cylinder head. After watching your video I'd believe your comments on location in a tuned exhaust system is wholly applicable to PPG tuned exhaust systems. But they all seem to do it. Perhaps they are not aware of the issues you identified. Do you happen to have thoughts, counsel, advice, on where to locate the injection fitting in a PPG 2-cycle motor's exhaust system.

I just finished designing a ppgsmoke.com paramotor smoke system thats similar to this. It has a 500ml flow rate (high) and produces about 2 minutes worth of smoke on a 1L container. You can size up on the fluid container for longer run time. We are also producing some injection hardware. Check it out.

Dumb question - is there a possibility of turning your exhaust into an accidental flamethrower if you install the inlet too far upstream where it is hotter?

I'd mount the injection hole to the left to strike that exhaust pipe, too, but from above, so the oil hits the hot pipe and splatters to hit the walls of the outer chamber too, and dribbles around the hot pipe to vaporize. An atomizer spray tip might help too but might reduce your volume and from the videos it doesn't look like you need it.

I have a used firefly that needs rebuilt. How do I find your build site? Yours looks great!!

Hello, I have seen your video and I have loved your installation of a smoke system for Rotax. I have a S-4 Rans with a Rotax 503 and I want to install a system like yours, but I have some doubts: 1.- Capacity of the tank and what type of tank is, how many minutes does it have to smoke? 2.- Type of liquid to make smoke, have you tried with diesel? 3.- Type of injector used in the exhaust and where to get it or details about installation. Thank you very much for your time, greetings from Spain

Update: So basically I've pretty much copied your system! Mines on a Rotax 582 engine, & at the moment I still have gotten the proper smoke oil, so I'm running my own mix. I haven't got a decent in-flight video yet (was about to but had an unrelated coolant hose fail on climb-out), I will be getting some soon. But here is a ground test. So once again, thank you so much for making your great video! kzfaq.info/get/bejne/bLGpf6d9krvOcnU.html

Why can't you use these Sullivan Streamers with gasoline?

Derusting my Exhaust, which looks very similar to yours... lemon juice and phosphoric acid etch and prep, painted with high heat 2000F exhaust enamel spray paint: air-war.org/Exhaust_Improvement_2.jpg

Do you have an e-mail? for some questions. Thanks

Can you legally install this on a certified airplane?😁