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Which 17.5T Brushless??? So many in the market.

Which 17.5T Brushless??? So many in the market.

Old 09-12-2009, 08:59 PM
  #61  
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Originally Posted by TeamTekin View Post
Hard to say best all around in today’s environment. Each motor has a different performance curve and some shine better in different applications. Unfortunately the timing game and addition of 1S will take a while to settle down and find the limits. Vegas is teaching us some things right now at the IIC.

In light cars like 1/12 scale or 17.5 classes where there is a lot of full throttle, one motor might have a slight advantage. With faster motors or offroad where there is less constant throttle or more load, other motors may shine. In most cases you have to be darn good and well past setups (gearing, timing, car) and board tapping to really see the differences. They are all built to roar specs and similar in performance so there is some feel good factor and durability to consider.

You can tell a lot about the thought and engineering that went into the motor by the construction. Some cans are flat sheets that are rolled into tubes and seam welded (lowest cost). Others are extruded tubes with no seams or multiple parts. Some (Tekin) are 1 piece and machined from billet stock, which allows for more details like threading, ribs, tolerances, and better heat transfer. Some of us are not too smart and forget to look at cost until we are done with engineering and making it the best.

The internal assembly can also tell you a lot. Sensor pcb secured well and positioned accurately for timing and distance from the magnet to give consistency? Good soldering and a quality pcb to withstand the abusive impacts? Sensor plug mounted to a pcb or hanging on wires? Tapped holes clean and straight? How the rear bearing is supported and the bearing quality is also important. The connections for the windings to the solder tabs and the solder tabs themselves (mass, material, coatings) can have a large effect. Add rotor balance, winding quality, stack designs and you cannot really read this book by its cover, but you can if you open it up and look things over for yourself.

Unfortunately good engineering and quality materials do not guarantee fastest on the track in all of today’s wide range of applications…. But it can make you feel good and is one less thing to worry about. Unfortunately it is hard for one motor to be all things with today’s complicated spec setups and tight sweet spots. In most cases you win with driving skill and not the fastest motor in what is suppose to be a spec class anyway. Buy into a family of support and ongoing development instead of the short term hot candy.

Tekin Prez
well said.
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Old 09-14-2010, 02:59 AM
  #62  
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Does anyone have the spec:s on Team Epic Duo 2 17.5T motor?

RPM/V?
weight?
Effect?
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Old 09-14-2010, 10:02 AM
  #63  
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Any comment on the LRP X-12 Stock Spec motors?
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Old 09-14-2010, 10:49 AM
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Originally Posted by SkarTisu View Post
Any comment on the LRP X-12 Stock Spec motors?
+1
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