I have had a Mamba Max 7700 kv motor since the day it came out, (about 4-5 years now) and have loved every second of owning it! The way Brushless motors work is for every 1 volt of power you throw at it you multiply that by the kv of the motor to get the RPM's. so with a 6 cell Ni-mh (nickel metal hydride) you have 7.2 volts multiplied by 7700 kv to get your final rpm of 55,440 rpm's. if you increase the battery by one cell raising it to 8.4 volts you get 64,680 rpm's and so on and so forth. I can honestly say the Mamba is without doubt the best RC purchase I have ever made, topping all the cars and all the other performance parts I have ever bought. The reason being with the brushless motor compared to the standard or stock brushed motors that come with cars you are very limited to how much power you can put to them, not to mention how very energy inefficient they are. with my stock 550 sized stock motor from my Traxxas 2wd Slash I could run for about 15 minutes on a 3300 mah (milli amp hours), with the Mamba 7700 which is easily twice the horsepower I can run for about 10-12 minutes on the same battery. even though yes the run times are slightly lower the performance and speed of the car has doubled. So by swapping motors to a much newer technology you will effectively increase your runtimes. The stock motor in the Slash (or any ready to run RTR model) is good for about 25 mph on a good day. With the Brushless motor you are very capable of hitting speeds very close to 50 mph. when I say you can increase your runtimes, I mean this in the manner of if you were to run the car at only 25 mph you would have a much longer run time then before. I know I know, none of us are capable of running a car at half throttle, and thats the beauty of running brushless, the ability to pick. The other incredibly amazing pro you get with the brushless motor is the complete lack for maintenance, with a older brushed motor it was common practice to take them off your car every 10-15 runs, take them apart, clean every single tiny little bit and bob inside the motor, oil it, put it back together and replace the brushed. if you did not do that as often as needed you would have to either buy small machines to resurface the faces of different parts of the motor, or just replacing the motor all together. With brushless motors it would be advisable to take them apart maybe two or three times a year and to put a very small amount of oil on the bearings. THATS IT! amazing motors...
The main reason i chose the Mamba system over some of the others (Novak, Greedy, etc etc) was the price was nice, and it has the option to connect your ESC (electronic speed controller) to your computer to fine tune the whole thing from top speeds, throttle curves, braking powers and curves, the hole nine yards. Now you know why I said first off that it was my best purchase!
