redhatman,

The system (MM/Feigao) is a good bang for the buck system, but the Feigao motors are what they are, and that is an inexpensive (dare I say cheap) motor that gets the job done with some drawbacks.

The major drawback is that they are inefficient. What this means to you is that they run hot. The hotter the motor the hotter it will run. I run trucks for the most part and have tried the 7XL, 8XL, and 9XL so far.

The 7XL was a wicked performer, but I could only run it for about 10 minutes before it got to over 200*F. I went with the 8XL and I could run a bit longer before the motor overheated. I am now running the 9XL and the performance is more than acceptable. Many who still run nitro would even call it fast. It's plenty fast enough for bashing and running on the track. I can run mine with my custom heatsink for about 30 minutes before it gets over 200*F. From what I've seen with these Feigaos that I've run is that they all over heat, it's just a matter of how long it takes.

The only way to avoid this is to go with a more efficient motor. The only real options that we have here in the states are either the Lehner or Neu.

The Lehner is a two pole motor and runs well with the MM (or any controller), but is kind of hard to get right now; but Mike is working on it.

The Neu is a four pole motor and will run with the MM, and people have done so with varying levels of success. Some say it runs fine and others (like myself) are having problems with cogging. If you want to run a Neu, I'd suggest either a Quark Monster Pro or Compro controller. These do well with four pole motors.

The downside to the Lehners and Neus is the price. They run double and triple the price of the Feigaos, but are worth it in my opinion.

If you want to go the budget route, go with the MM and 9XL. With the proper cooling precautions, you'll have a good time with them. I know that I do.