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suicideneil
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Join Date: Feb 2007
Location: Devon, England
03.24.2011, 09:06 PM

Quote:
Originally Posted by fastbaja5b View Post
Ok, so to explain it to a dimwit like me, I have my SC8 with a Castle Neu 2200 geared for 40mph on 4s Lipo. If I go up to 5s Lipo, but adjust my gearing down so that I am still geared for 40mph, will my run times increase and amp draw decrease,
That is conventional thinking, yup, and most graphes & reports I've seen support it- more power in the system and less load on the motor should result in less current draw and longer runtimes.

Quote:
or can you go too far as to undergear the motor?
Also true- there is obviously some le-way regards the perfect gearing but BL motors will tend to run hotter if they are underloaded, since they are able to hit max rpms quickly and stay there. I believe Patrick referred to motors liking partial throttle & escs liking full throttle for maximum efficiency too, so it figures that a motor running full throttle alot of the time will run hotter than the esc will- just gotta try and strike a balance between motor kv, motor size, input voltage & gearing- hence why this hobby is so damn complicated and frustrating at times
   
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