[Sparky3D]

First off, Welcome to CD!

Teams have already shown prototype wheel based shooters using less power than 4 CIM motors, so I'd say that would be enough power. Whether or not YOUR design is going to work is something that is hard to answer without more detail. Personally, I'd strongly suggest you consider putting 4 CIM's on your drivetrain and look at using some of the other motors available on your shooter. There is the potential for a lot of defense this year, and an under-powered drivetrain is going to be a big disadvantage.

By the way, you may want to eliminate the empty space in your post, it makes the thread harder to read.