Just curious why a 2650kv is recommended for buggy, and 2200Kv for truggy.....2650Kv seems a bit overkill for a buggy, isn't it?
2650 is a lot of motor on 4s, but is ideal for indoor with a good 3s battery in a buggy to keep the weight down. the reason they market the 2200kv for truggy use because its longer and designed off the 1515 series neu motors which has more bottom end torque. the 2650kv is based off the shorter 1512 neu series motors.
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Nick Vasquez
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the 2200kv by Castle is much longer than the 2650kv, the revs are lower AND has tons of torque for the weight of a truggy or truck. I run the 2650kv with 4s, wicked fast, but tone it down with the castle link....
lot of guys are running lower kv and 4s-6s set ups....don't know if Castle is coming out with a lower/smaller kv motor...
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Like stated above, the can size is bigger for the truggy. The KV rating has to do with how many revolutions the motor spins per kilovolt. The higher the KV, the faster the motor spins. It's the gearing of the car or truck that should deterimine which KV you will need to run to get your desired speed. Also, the lower the KV rating, the higher the torque output. Lower KV motors can handle higher voltage which is what's needed to get the desired revolutions of a higher KV motor. Usually a lower KV motor on higher voltage geared properly runs much cooler and more effeciently....I am no expert, just what I have learned over the last few years....If I am incorrect, please someone feel free to correct this as I don't want anyone to be mislead....
....don't know if Castle is coming out with a lower/smaller kv motor...
That was there stated intent, they asked for beta testers on RCM back in Jan this yr but there's apparently been no follow thru with any testing, or no one was picked off RCM and Castle has kept quiet about any testting thats been done. They have not said word one about it.
Unless your thinking about the possibility of using 3s on a small technical track with the 2650, get the 2200 sure its torquey but you can tone it down with the castle link and whats cool about it is you dont have to have that $250 40C lipo a quality 25-30C will give you all you need. And then if you want more Castle link and turn it up. Plus you have gearing to play around with. With the 2650 you go wrong with the gearing on there and you can get something hot easy. My 2 pennies, I would like to see the lower Kv motors though I want to try the 6s low KV motor but 1500KV is alittle much for 6S but I will take it. Castle all their stuff is bigger-faster than the others they like that LOL, and it works.
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The track is med-large size with one long straight-a-way.and 8-7 jumps Im running a 1/8 buggy.I dont wanna spend $225 on 4s when I think it to over power for our club track.so looking for 3s lipo with good running time and power....any sugg?
2200kV on 3s is a little low IMO. On a relatively light buggy, you'll probably be fine, but many think running lower rpms is better, but that's only up to a point. At a certain, the motor isn't producing enough torque/power to push the vehicle at the speeds it's geared and will start to consume more current.
If you want to run 3s, the 2650kV is a better bet. As already stated, lower kV and larger can motors produce more torque which is why they're often used and recommended for larger/heavier trucks. The higher kV motors are often used for smaller vehicles where weight and space is low, so you use smaller batteries. With lower weight, the motors aren't stressed as hard and don't need to produce as much torque to get them moving quickly without consuming too much current.
It's only somewhat accurate to state that higher voltage lower kV setups are more "efficient". Efficiency is a relative term. But people base efficiency on operating temperatures which is an absolute value. A motor operating to produce 100W of power that's 50% efficient will only produce 50W of heat. A motor operating to produce 300W that's 75% efficient will produce 75W of heat. The 300W setup is more efficient, but it will feel hotter. Just something to keep in mind that lower temps don't necessarily mean more efficient...it may just be producing enough less power that it's wasting less in heat that can be felt (but relatively less efficient because it's wasting more heat relative to power consumed). Too much info probably.
I don't think the 2650kV is a bad motor or a bad choice for a design. It's just best operated on 3s and thus should be used in the right application (i.e. not a truggy). Anything higher and it will become a current hog.
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The track is med-large size with one long straight-a-way.and 8-7 jumps Im running a 1/8 buggy.I dont wanna spend $225 on 4s when I think it to over power for our club track.so looking for 3s lipo with good running time and power....any sugg?
I just bought 3 of these for 247 bucks shipped to my door, I run them in my buggy which has the MMM 2650kv and in my son's truggy which has the MMM 2200kv, alot of power and run time on a large track with alot of jumps and a long strait. http://www.hobbycity.com/hobbycity/s...dProduct=10096
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I heard directly from Castle about 1 month ago that they are in the mids of releasing a 1800kv motor.
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I am running the 2200kv in my buggy on 4S and am very happy I went with that over the 2650kv. I find it gives more gearing and tuning options. I have tired the 2650kv on 3S and it worked fine, but is more picky on gearing in my opinion. But were good though. The biggest reason I went with the 2200kv is because I am run it in both the buggy and truggy. I did need to tune down the EPA because the 2200kv has lots of torque.
Im glad I found this thread....... I have the MMM 2200kv motor and esc combo that I plan on tearing off my e-revo. Next I want to convert my 8ight 2.0 buggy , so with that being said does anyone have any experience with these two (motor and buggy)?
I figured that 4s would be a happy medium and I have learned well how to adjust everything via castle link. I'm just not sure wether to get the losi conversion kit or the tekno kit. Any other help or suggestions would be great!
Thanks
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MMM 2200Kv vs 2650Kv for 1/8th buggy...
