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T-REX 500 › looking for some ESC specs
10-25-2012 04:02 AM  5 years agoPost 1
Applejack

rrApprentice

Moyock, NC

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Just outfitted my TRex 500 with a Scorpion 3226-1600kv motor and Castle ICE 75 to replace the stock esc and 500mx motor. While setting up the ESC, I noticed the RPM's were low (2354 in normal, 2438 in idle up) being i replaced a 1600kv motor with another, I decided to use the 13t pinion. Im in need of some assistance, should i bump up a tooth on the pinion? or do i possibly have something set up wrong in the ESC? any assistance is appreciated.

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10-25-2012 04:25 AM  5 years agoPost 2
dkshema

rrMaster

Cedar Rapids, IA

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Did you set the ICE controller up correctly? The default settings are NOT heli friendly and you must also calibrate your TX throttle channel to the ESC.

Make sure you set the throttle mode to at least heli, fixed endpoints, and then go through the calibration procedure. You can then go set up the governor stuff if you so desire.

Just don't leave the ESC in its default Auto Calibrate mode, that will not be a successful setting for a heli.

Also set the current limit to either insensitive or disabled.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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10-25-2012 04:37 AM  5 years agoPost 3
Applejack

rrApprentice

Moyock, NC

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yessir I sure did, went into gov setup since thats what I run on my 450 and 700. Both of those run great, of course Im runnin stock motors with Castle ESC. I set the throttle as per instruction of the castle link, 30% 70% 100%. so Im familiar with that. im just not sure as to why the stock 500mx 1600kv and the 3226-1600kv arent running anywhere near the same head speeds. thanks for the input!

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10-25-2012 04:43 AM  5 years agoPost 4
Applejack

rrApprentice

Moyock, NC

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current esc setup.

Throttle: gov
Gov gain: 25
Initial spool up: 5
Head spd change rate: 8
Auto Rotation enabled
batt: lip
cells:6
volts: 22.2
ratio: 12.461 13t pinion/ 162t main
1600kv motor
number of poles 6
CUTOFFS: auto lipo
3.2v
insensitive
soft cutoff
MOTOR: start pwr medium
timing 5
direction forward
pwm rate 8 khz

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10-28-2012 05:48 AM  5 years agoPost 5
Applejack

rrApprentice

Moyock, NC

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Checked the mail today and my 14t and 15t pinion came in today. plugged in the 15t on the castle link. set the head speeds as follows: 2450 - 82.8%, 2660 - 89.9%, 2812 - 95%. im going to give these a test and pull the data soon as this storm passes in a couple days and will return with some data.

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