2 Cycle vs 4 Cycle Engines?

[KartingIsLife (James McMahon)]

This is the topic I meant to link

High Performance Four Stoke Kart Engines

Putting in general category for now, then I’ll move it to 4 Stroke Kart Engine Forum I thought it would be good to archive some of the high performance four strokes that were promoted in the US around 2008 ish but never seemed to have much adoption. I think most of these came from the FIA’s proposal to move to four stroke from the super high performance 100cc classes. The information I have from these is from the US importer, engines4racing.com which is long gone, but I was able to find the in…