I've got an Aeromomentum AM15 HP on my RV-12 and want to add smoke just for fun. How far down the exhaust path can I go before the exhaust is too cool? I have a four-into-one tuned exhaust followed by a small glass-pac muffler - then an 18" tailpipe. I can't put the nozzle in any of the tuned pipes because there's an O2 sensor after the 4>1. If I put it after that, but before the muffler, I'll gunk up the glass-pac. So am I ok after the muffler?? That would leave only the 18" tailpipe to develop the smoke.
At what temp does the smoke oil smoke, anyway??