Quote Originally Posted by Sparling View Post
Does anybody know anything about engine swaps in jet skis? My friends dad has 2 sea doos with 2 stroke motors (one needs a motor swap and the other just took a ton of sand in the intake), and I had the dumb idea to swap in a 4 stroke motor (read Ford 2.3L from '90 mustang) and turbo and try to make it real fast. I'm pretty sure the engine will fit but I have no idea about cracking the hull to do it or how the jet drive works, or how the engine mates to it. I'll be reading on this.
Not without having the hull redone, ive see a few at the nat. jetski drags that had 4.3 in them, but they were pretty much 100% custom boats. What year and size are they? Most of the mid to late 90's 2-strokes can make serious power for their size and wieght. We had one that I raced in HS that made around 250hp and with the right setup could do over 80mph. Even my dad's Polaris Genesis made 215hp with a reed and head kit, and exhaust.