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Wild West of Four Stroke Engines

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ToddK

Well-Known Member
Supporting Member
Joined
Jan 13, 2016
Messages
1,097
Location
Shweaty Texas
After spending a lot of time looking into 582 replacements I have been amazed how many people are out there developing their own aero engines from the ever expanding 4 stroke market. It seems that 4 stroke is taking over nearly every market segment, and providing us with new engines to tinker with.

In many ways, it seems like we are sort in the "wildwest" area of 4 stroke conversions now that they are replacing small 2 stroke engines.

Yamaha 3 and 4 cylinder sled engines are getting a lot of traction, with builders offering them for sale as turn key engines, or selling parts.

The Mosquito Helicopter is using an arctic cat 800HO engine. I think there is a lot promise in that one for a 582 replacement.

There is a guy on FB who has very clean and very small Honda outboard motor that is nearly ready to run.

It just goes on and on. Who knows what the UAV and industrial engine markets will yield in the future.

Modern low volume manufacturing technology and cad programs have made engines like the upcoming O-100 a possibility.

For heavier airplanes Viking (all E... baggage aside) and Aeromomentum seem to be offering quality turn key engines at very affordable prices (half of a 912), both with the latest technology.

Add to that the number of guys out there with their buddies converting engines in the garage and not making a big deal out of it online.

Are we entering a golden age of 4 stroke engines? Maybe so.

What are you guys doing, seen, or heard about?
 
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