Quote Originally Posted by Kevodaniel View Post
I have come across some small engine turbos that will support 100 hp has anyone tried this if so what was the outcome I'm thinkin about tryin it on a 99 40 hp johnson it seems easy enough to hook it up just trying to figure out boost preasure and jet size to get the perfect air/fuel ratio with out destroying it any thoughts or suggestions
You would need to rig up an oiling system, separate. It would require regular auto engine oil. You could probably do this with a diaphragm pump as long as the oil is cooled by a separate water jacket as it is recirculated or use an electric fuel pump. Also, it would not be a bad idea to cool the induction between the turbo outlet and intake with a water jacket as well ( intercooling system ) to densify the charge.

The early Detroit diesels that trucks and other industrial applications used were two cycle. They had a roots type blower that pressurized the engine intake. When the piston reached bottom, the pressure would scavenge the cylinder while the exhaust valves opened briefly. Then the valves shut and compression took place. When the compression was maxed, a mechanical injector sprayed fuel in and combustion occurred ( no glo- plugs. it cranked under compression alone!). Later on, a exhaust driven turbo was added to the blower for better power, which proves that a turbo can be driven by the brief action of two cycle exhaust.......