KINGZJ
The black can motor is a good motor. It doesn't quite have the grunt of a P2K, but you can be quite competitive with it. I found that the stock gearing (17/63) works best on my track which is pretty wide open with just a few straightaways. If you're on that type of track, you should be in good shape. If you race on a track that has a really long straighaway, you may have a problem. Because Tamiya parts are limited in my area, I have only experimented with 17T and 19T Tamiya pinions. I think the motor would perform better if a 16T or even 15T pinion were used. My brother just got an RX kit and put 48 pitch gears in it. He's running with a black can motor that I gave him and 19/75 gears and the car is fast.