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Old 07-23-2004, 01:08 PM   #1
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Orion Motor Tester

I just got the new Orion motor tester and I am still learning how to use it. Last night I completely tuned up one of my Monster Stock motors i.e. polished bushings and shafts, aligned brush hoods, trued the comm, shimmed the armature and filed a little bit off the brush leading edges.

The motor only had a couple runs on it before last night. Before I rebuilt it I put 5 volts into it with the tester and got an amp draw of approx 5A at 21k RPM. After the rebuild I did the same and got approx 9A current draw at 23k RPM.

Is this a good result?
Is more current draw a sign that the motor is running more efficiently?
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Old 07-23-2004, 01:24 PM   #2
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Thats pretty good

Usually my motors get worse after a re-build and are at their best when they need re-building...

9 amps from a Monster under no load...If everythings free and nothing's binding I'd say that thing will have some fair torque
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Old 07-23-2004, 01:41 PM   #3
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the 2k jump in rpms should be noticable also
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Old 07-23-2004, 09:38 PM   #4
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Default Re: Orion Motor Tester

Quote:
Originally posted by Qwiglee
I just got the new Orion motor tester and I am still learning how to use it. Last night I completely tuned up one of my Monster Stock motors i.e. polished bushings and shafts, aligned brush hoods, trued the comm, shimmed the armature and filed a little bit off the brush leading edges.

The motor only had a couple runs on it before last night. Before I rebuilt it I put 5 volts into it with the tester and got an amp draw of approx 5A at 21k RPM. After the rebuild I did the same and got approx 9A current draw at 23k RPM.

Is this a good result?
Is more current draw a sign that the motor is running more efficiently?
What brushes are you using? I use the Reedy 767. With that much effort, I would be looking for 23,500-25,000 rpm at 5 volts with a 8.5-9.5 amp draw on my Yokomo Motor Management system which should be similar to the Orion.
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Old 07-23-2004, 09:51 PM   #5
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where's it available? got pics?
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Old 07-23-2004, 10:24 PM   #6
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Quote:
Originally posted by rc-zombies
where's it available? got pics?
Where is what available?

If you mean the Orion, go to their site. Otherwise, I have seen it at a couple lhs.

Try Speedworld or Allspeed like you have in your signature. Saw the latest one at Allspeed.
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Last edited by JRX-S Bill; 07-23-2004 at 10:45 PM.
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Old 07-23-2004, 11:41 PM   #7
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Default Re: Re: Orion Motor Tester

Quote:
Originally posted by XXX-S Bill
What brushes are you using? I use the Reedy 767. With that much effort, I would be looking for 23,500-25,000 rpm at 5 volts with a 8.5-9.5 amp draw on my Yokomo Motor Management system which should be similar to the Orion.
I need to have you tune my motors Bill

I always seem to loose some top end (about 500-1000 PRM on the dyno yet I gain a slight bit of torque (no amp draw change) when I use 767's...I like the Trinity 4505's & 4499's
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Old 07-23-2004, 11:43 PM   #8
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What is the difference between the new one and the old one?
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Old 07-23-2004, 11:48 PM   #9
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Quote:
Originally posted by forty6
What is the difference between the new one and the old one?
From the Team Orion website...

Motor Checker

Do you really know how well your motor is performing? With Team Orion's Motor Performance Monitor (MPM) you can check your motor's RPM and current draw to evaluate performance. The MPM is also a top of the line motor break in device and is the perfect power source for your commutator lathe.

Features:
.01-7.99 output voltage
13 maximum continuous amps
Dual internal cooling fans
Pulse break-in
5-step pulse speed w/99 minute motor run delay
9 sound tones
Blue back lit LCD screen
3-step motor speed up

41613 Motor Performance Monitor (MPM)
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Old 07-23-2004, 11:49 PM   #10
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I believe the old one only went to 5 volts output.
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Old 07-24-2004, 12:25 AM   #11
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Keep in mind.....a no-load amp draw reading dosn't mean "much" at all....aside from telling you that a motor pulling 25amps under no-load probably has something stuck in it.......some of the fastest motors "can" pull, less (no-load) amps than some of the slower ones.......when a motor is put in a car under load ,or on a dyno that simulates a load, everything changes......I see people doing this at tracks all the time.....It's amazing how something so inacurate and misleading can catch on and have even veteran racers tuning a motor this way
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Old 07-24-2004, 07:54 AM   #12
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does any one know how much it cost where its avalible online? I looked at the websites mentioned above but could not find it .

thanks,bob
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Old 07-24-2004, 08:13 AM   #13
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any one have pics
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Old 07-24-2004, 08:36 AM   #14
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here you go javascript:close()
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Old 07-24-2004, 08:38 AM   #15
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sory didnt work here is the link hopefully this works
http://www.team-orion.ch/products/mo...otor%20Checker
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