So I have been pondering the idea quite a while and not backed down from thinking about it. I haven't had much luck in the research dept, so i figured this the best place to look. As far as the chassis that will recieve this idea, i'm aiming for EG, but it may be swayed to n EF (cost/availibility reasons) or possibly another very light weight similiar vehicle. I have decided to transplant a Watercraft or similiar motor into the vehicle. I am wondering if this has ever been done before, if not why, and any concerns or things that i should look for that i may be missing. I am trying to aim for 2-stroke if at all possible. I've come across 2 things i'd consider typical problems in a swap (by that, i mean a lack of a needed part between the motor/chassis). Watercraft engines are watercooled, fix by using electric waterpump and stock radiator (possibly adding an aircool fan as well if needed). Converting it to hook to w/e transmission the car has, I feel this could be achieved with simple welding for a custom bellhousing as a watercraft motor does infact have a impellar shaft. Things I that I am wondering (as I do not own a jetski): Do they have a tachometer or way of measuring revs, do they have seperate oil/gas tanks and mix or do you mix yourself, typical engine measurments (will it fit?). I may have to use a rwd vehicle, are civics extremely complicated to convert to rwd or is it a fairy non-complex task? Money is not really an object as I am making decent income (300/week spare) and have no time constraints. I hope this is the right area to post this is, if not I am sorry. I do apologize for the length, thank you for any help possible as the internet in its vastness really sucks.