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RCX H2205 2633kv Full Results  [CLICK HERE]

  

This motor is yet another in the high KV testing range, continuing with the 2205 stator size. This is the 2633kv version of the inexpensive and ubiquitous RCX H2205 series of motors.  MyRCMart sent this in for testing.  This motor is identical in build quality to the 2350kv I tested in on the 2300kv series of motor tests.  The build quality is good, but the aluminum is quite soft and somewhat thin in order to get the weight of the motor as light as possible.  These only weight in at a little over 24g with short wires, so if you're looking for the lightest build possible, these are the motors for you.  That lightness comes at the cost of durability though, and these motors have been known to dent and deform fairly easily.  Fortunately the full range of replacement parts, including bells, bearings, and shafts are readily available.  About the only thing that will fully trash the motor is a bent bearing race.  The bearings can sometimes be a bit rough from the factory, so keep an eye out for that when you're first checking your motors. At $13 a motor and cheap replacement parts, there seems to be a pretty even trade.

Results

The numbers for this motor were what I would consider average for a high KV 2205 motor.  They thrust numbers and RPMs weren't extremely high, but also the amp draw was much lower than a number of the other high performance motors on the market.  On the 5x4x3 the RCX motor only drew about 26.5A vs 29A on the ZMX v1 2633kv, and 32A on the Emax RS2205 2600kv.  Given the lower amp draw and lighter weight that makes this motor a contender for extremely light weight builds where running a lighter battery and lighter motors will make a difference.   It also means that this motor will run on just about any 20A ESC by the time we take dynamic load reductions into account.  The only restriction here is eRPMs limits.  As with other high KV motors, I would definitely recommend sticking with an ESC capable of greather than 240,000 eRPMs. I would make that recomendation for any of these motors above 2500kv, especially if you plan on experimenting with faster update rates.