RB Speedline Matrix
 

Whats the word on the track about this motor? Pretty powerful, top speed, or all the above? Need a nice tight-track motor. Have the Ninja...shes a screamer on the top, but a little soft down low and would like to possibly try another motor or I will get another Ninja.

Is noone using this engine? Lots of lookers, but no replys.

The Matrix is exactly the opposite of what you are looking for. It's a high rev screamer.
If you need punch for a small track, go for a Picco based engine (JL red dot, Mega ZX12DSII or LRP Team) or a Novarossi longstroke such as the NS12LL3 or the new Plus 12-3 engines.