For: Systema Energy Motor (Long Type)Product Information:
This is an excellent motor for those who don't want a crazy rate of fire and want to save battery power. This is essentially a slower turbo with a little more torque if I am not mistaken. I got this from airsplat, unfortunately, but I wasn't let down by their service like last time so I am happy. Anyway, out of the packaging, I new this was of the utmost quality. I bought this to upgrade my already upgraded 2010 KWA M4 CQB. With the stock motor and a 9.6v battery I was getting about 16-18 rps. With this motor, even though the brushes aren't nearly broken in, I had to have been getting 23-25 rps. I do not have a chrono at my house so I cannot verify this, but I'm confident that this is an accurate estimate. My gun is way, way faster. This is a significant jump for $60 (airsplat sells these for $60, which is awesome.) The motor also ran pretty cool even after firing a few consecutive bursts so I doubt there will be heating issues. Just make sure you have the motor adjusted correctly, because faster rps means the gears are spinning much faster, therefore causing extra strain. The pinion gear was not as tall as the stock KWA motor's so I'm not sure if this will give me any problems. Although I've shot 300 rounds with this motor, I can say that this is excellent and highly recommended. I'm using the energy cylinder set in my gun as well and am loving it. I've also used the energy piston in another build of mine and it is holding up fine and was only $15. I recommend anything from systema, because they simply make the best parts. Even their gear and cylinder grease (which I use in my KWA) is worth the obscene amount of money in my eyes. They are simply the best in the business.
Very high quality
Good torque, but not for anything over a M130 I would say.
Very great rate of fire (probably faster than a G&P M120, but I cannot say for sure as I have not compared the two together.
Luckily the bevel gear meshes great with KWA gears
I would prefer to have more surface area on the teeth (taller teeth). I can't say it is an absolute con until I have problems with it, which I doubt will ever happen. I trust systema, and feel that their prices are justified for what you get.
Also, Neodymium magnets give a little more whine, which isn't a con but a good thing to know when adjusting the motor height. My gun does not have too much whine, but I just wanted to point that out. Just remember to put a hefty amount of gear grease on the pinion gear to make sure your bevel gear is nice and greasy.