It looks like visforvoltage.org still exists. I bought an old gas scooter with the intention of converting to electric but ending up buying a new piston and cylinder and rebuilding the carburetor.. as a result I fell off the electric forum for a year or so. Also it looks like I lost my old id. Anyway.....
Does anyone know how to calculate horsepower needed (how many watts should my motor be) given a certain set of conditions? For example, I have a 100 lb scooter, I want to go up a 2% grade, and I would like a top speed of 40 mph. (Regarding range, I would like to reliably travel 30 minutes each way before charging at the end of the day.)