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Old 2008.06.04, 12:37 PM   #1
schmenzer
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HFAY 70-turn Season 6 Spec Motor Tests

PN Racing HFAY 70-turn Season 6 Spec Motor Tests

EDIT... - GUYS, MY MOTOR MASTER MAY NOT BE WORKING PROPERLY SO THE AMP DRAW READINGS I GOT BELOW ARE PROBABLY NOT ACCURATE SO I REMOVED THEM. THIS IS BASED ON A COUPLE OF OTHERS TESTING THE MOTORS WITH DIFFERENT EQUIPMENT. READ ON FOR OTHER TESTS.

I HAVE A NEW MOTOR MASTER COMING AND WILL RETEST WHEN I GET IT.

THANKS,

GREG

I recently purchased 5 of the Season 6 Spec motors and did some initial bench testing on them. All motors were broken in on a Much More Platinum Motor Master in Break-in mode.

Step one was done with the HFAY motor on slave mode driven by the master motor on the PN Racing Motor Test Stand. The Motor Master was set as follows:
  • Low Voltage 1.2
  • High Voltage 3.5
  • Profile 1
  • Duration 8 minutes
  • Cooling period 2 minutes
  • 2 cycles

Step two was an 8 minute Break-in powering the HFAY motor directly from the Motor Master using the following settings:
  • Low Voltage 1.2
  • High Voltage 3.5
  • Profile 2
  • Duration 8 minutes
  • 1 cycle

The bushings were oiled at the beginning and end of the break-in runs. Additionally a drop of VooDoo fluid was used before the powered break-in.

#1 HFAY 70-turn Spec Motor
4.8v RPM 23,730

#2 HFAY 70-turn Spec Motor
4.8v RPM 24,300

#3 HFAY 70-turn Spec Motor
4.8v RPM 24,180

#4 HFAY 70-turn Spec Motor
4.8v RPM 23,730

#5 HFAY 70-turn Spec Motor
4.8v RPM 24,750

For Comparison my Season 5 Spec motor delivered the following after I removed it from my back up car. For what it is worth I never used this motor in actual HFAY races. It was certainly faster than the stock motor I ran but I was not as consistent and ran a lap or two less over 8-minute tests.

Season 5 HFAY Spec Motor
4.8v RPM 36,960
.95 Peak Amp draw
.92 Average 4 step (1.2v, 2.4v, 3.6v, 4.8v) Amps

And a couple of Kyosho Stock motors I used over Season 5.

4.8v RPM 33,800
2.55 Peak Amp draw
.85 Average 4 step (1.2v, 2.4v, 3.6v, 4.8v) Amps

4.8v RPM 32,350
2.93 Peak Amp draw
1.17 Average 4 step (1.2v, 2.4v, 3.6v, 4.8v) Amps

Question: 4 of the 5 motors have an average amp draw of 2 Amps or better. This is quite a bit more than spec at .481 amps and about double a stock Kyosho. Does anyone know the original spec test conditions?

Question 2: If you had the choice to pick one of the 5 which would you choose and why?

Now, on to the track tests!

Thanks,

Greg
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Last edited by schmenzer; 2008.06.09 at 07:11 PM.
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Old 2008.06.04, 01:09 PM   #2
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those s6 motor results seem off,you sure it said 3.07 and not 0.37(id thought they would be the latter)those figures are stock fet blowing.
of all the s5 motors i tested they were all around what you have with yours +/- 3000rpm.
all the stock motors i have not one pulls more than .60,most rpm was around the 34k mark.

ive got 25 s6 motors on the way ill test a few and compare them here

stock or s6 is the way to go,s5 was waaaaay too fast
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Old 2008.06.04, 01:52 PM   #3
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the season 5 motors are not allowed as legal from this point out. they will give and unfair advantage with the new fet rules.

the motor is the limiting factor. You will always have a variance in the motors when it comes to a mass produced product.

if it is the case that Kyosho stock motors provide more power than all the HFAY motors I will have to look at not allowing them as they would also give an unfair advantage.
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Old 2008.06.04, 02:00 PM   #4
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I don't have a motor dyno, but I can test the current draw on my ice.. I'll throw a few on tonight and post the results.
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Old 2008.06.04, 02:08 PM   #5
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Quote:
Originally Posted by mk2kompressor View Post
those s6 motor results seem off,you sure it said 3.07 and not 0.37(id thought they would be the latter)those figures are stock fet blowing.
of all the s5 motors i tested they were all around what you have with yours +/- 3000rpm.
all the stock motors i have not one pulls more than .60,most rpm was around the 34k mark.=t
Nope, I am sure that the draw was 3.07 Amps peak at 4.8V on the Muchmore Motor Master. For what it is worth here is a sample of the 4-step Amp draw from the Motor Master I did just now to verify:

Peak Amps at 4.8V = 3.07A

Amps at Voltage:
1.2V = 1.9A
2.4V = 2.6A
3.6V = 3.1A
4.8V = 3.1A

4-step average = 2.67A

I now have over 1,000 laps over 3 different cars running the Season 6 Motor and have no problems with Stock 3010 FETs.

Greg
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Old 2008.06.04, 02:16 PM   #6
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Quote:
Originally Posted by briankstan View Post
the season 5 motors are not allowed as legal from this point out. they will give and unfair advantage with the new fet rules.

the motor is the limiting factor. You will always have a variance in the motors when it comes to a mass produced product.

if it is the case that Kyosho stock motors provide more power than all the HFAY motors I will have to look at not allowing them as they would also give an unfair advantage.
Brian, don't worry! On my track, and in my cars, the Spec motor is faster. I'll have more extensive test results in another thread.

I am curious what others are getting on their test equipment. I believe the Muchmore unit is accurate but don't have another device to test with. Seeing as results on other motors that mk2kompressor tested and my similar results on those same motors I'd have to say the Motor Master is fine.

Note that I did have the one motor, #4 above, with significantly less average current draw. I haven't run that one in a car yet. RPM is similar. What would less current draw do to performance? May have to test to find out!

BTW, the Season 5 Motor results were simply for comparison. I like the new rules!

Greg
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Old 2008.06.04, 04:00 PM   #7
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ill throw mine on(4 out of 25)when i get them,if anything they should be more efficient than the stock motors(better brushes)
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Old 2008.06.04, 04:00 PM   #8
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Quote:
Originally Posted by mk2kompressor View Post
those s6 motor results seem off,you sure it said 3.07 and not 0.37(id thought they would be the latter)those figures are stock fet blowing.
I know people have been racing the new season 6 motor for a while now and even on stock boards. But is the statement above correct? A motor drawing over 3 could blow a fet or a little less dramatic harm a PCB over long periods of use? All I want an unbias honest answer, I just don't want to run a motor that would have negitive affects on my car even if its driveable and hasn't blown any fets yet. thanks
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Old 2008.06.04, 04:04 PM   #9
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im not saying greg's results are incorrect but im struggling to believe they are pulling that much current,dont worry too much nic,after all the same motor has been run more than enough in the pnwc
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Old 2008.06.04, 04:07 PM   #10
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okay good point, I just was worried it being one of those things were no immediate problems are caused but long term use would cause adverse affects. I run all 2.4 boards with one car being stock 3004 fets. so I was a little worried about that one. So if those numbers are correct with a motor drawing that much Amps would that cut down on battery life and proformance?
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Old 2008.06.04, 04:15 PM   #11
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it would half the runtime for sure
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Old 2008.06.04, 05:00 PM   #12
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I heard that 2/3 amps is wire melting point??
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Old 2008.06.04, 07:31 PM   #13
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I tested 3 motors on My ICE charger, with the motor break-in Feature.

all motors tested at 5 volts. (same as 4 x 1.25volt AAA's)

Motor 1 = .44 amp current draw

Motor 2 = .48 amp current draw

Motor 3 = .47 amp current draw.

these are no load figures, I don't have a motor dyno so I can't post the RPM.
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Old 2008.06.04, 07:40 PM   #14
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thats better,very similar to a stock motor
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Old 2008.06.05, 12:43 PM   #15
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Quote:
Originally Posted by briankstan View Post
I tested 3 motors on My ICE charger, with the motor break-in Feature.

all motors tested at 5 volts. (same as 4 x 1.25volt AAA's)

Motor 1 = .44 amp current draw

Motor 2 = .48 amp current draw

Motor 3 = .47 amp current draw.

these are no load figures, I don't have a motor dyno so I can't post the RPM.
Interesting. I tested no load too. I wonder why the Motor Master would get such different results. It has been designed with Mini-Z motors in mind and seems to test the Stock and Season 5 motors with similar results to other tests I've read. Why would this set of motors be different? If it is off by a factor of 10 then the Amp draws would be too low if Brian's are accurate. Very odd.

Maybe we will see more coroberation one way or the other.

Whatever the actual results, the new motor is great in my opinion.

Greg
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