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Old 02-20-2006, 07:27 PM   #1
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Default Speed Control specs ?

When looking at speed control specs... what kind of numbers am I looking for in these: On-resistance(ohms) , Rated Current , Drive Frequency etc...... High Numbers or low? any info would help, im trying to decide between two.
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Old 02-20-2006, 09:31 PM   #2
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On resistance: Lower is better
Motor limit: Lower is better, none is best
Drive frequency: If its not adjustable make sure its not really low, like below 2Khz. Adjustable freq is best
Discrete Steps: More is better (the more there is the smoother the ESC is)
Current ratings: Higher is better
BEC: Higher amperage and voltage is better
Also look for small size, light weight, programmability, and stuff like that.
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Old 02-21-2006, 07:08 AM   #3
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ESC A

On resistance: 0.00058
Motor limit: No Limit
Drive frequency: 5,860 (Profile 1); 7,800 (Profile 2); 15,600 (Profile 3). Adjustable from 122 to 23,400 with optional Pit Wizard or ESC Profile Software
Discrete Steps: 512: 256 Forward, 256 Brake
Current ratings: 480
BEC: 6.0v / 3.0amps


ESC B

On resistance: 0.0040
Motor limit: 12 turns (at 6 cells)
Drive frequency: 1000
Discrete Steps: 512: 256 Forward, 256 Reverse
Current ratings: 160
BEC: 5.0 / 0.5


My Current old ass ESC

On resistance: 0.0030
Motor limit: ?
Drive frequency: ?
Discrete Steps: ?
Current ratings: 250
BEC: ?

Great info wheelnut! I think my choice is easy now....
Also what is the difference between the old Megafet and newer Hyperfet III?
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Old 02-22-2006, 02:27 PM   #4
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well now im looking at used Cyclones and cyclones C2.....
is there much different between the two? All I see is the C2 has a lower resistance of .00049 compared to .00058
is it worth the extra money?
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Old 02-23-2006, 01:03 AM   #5
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If your looking at an ESC as old as that anyways I don't think it will matter to much. A lot of guys are going with the Novak GT7 as budget racing ESC. Not quite as old tech as the Cyclones, but really the speed controller isn't going to make of break your race, your driving will.
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