To run your car on water, I would definitely recommend that you get a good guide. There is a very new, but very well received product out called "Water Car Pro", which has a lot of things going for it right now. You will need a guide like this if you really want to convert your car properly. If you try to do a lot of guess work, and work out everthing for yourself, then all you’re doing is risking the safety of your car. A good guide will tell you in a step-by-step fashion what you need to do.