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Old 02-29-2012, 09:13 AM   #1
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Default WANTED - Dyno Data

I'm looking for someone who would like to work with me to complete some specific brushless motor flywheel dyno tests. Initially I just want to look at one motor say a 17.5. Testing would involve runs with mechanical timing (0,10,15,20,...), and similar runs with electronic timing.

I will use the data to build as a start to build the motor library in RC Crew Chief. If you want to see what I plan to use it for watch this Youtube video.

http://www.youtube.com/watch?v=n4OKO...eature=channel

Post or PM if you are interested.
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Old 02-29-2012, 10:11 AM   #2
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It may be hard to get a lot of data from someone from a flywheel dyno. A lot of guys dont use them anymore. The only ones that really did were Oval guys and they are all now using chassis dyno. most on road guys use Turbo dyno's that use a slave motor.

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Old 02-29-2012, 11:21 AM   #3
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Thanks for the heads up. Whatever happens it's worth a try.
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Old 02-29-2012, 11:23 AM   #4
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Default Dyno

I use a prop dyno from 1989 that we made when I worked at "Redline". It was built for brushed motors but I have changed it over for Brushless.

I have also played with the "Eagle Tree" datalogger. You may want to look at that. It will give you a lot of usefull data. The key for me was to get the "on track" amp draw. One you have that you can dyno motors to see how they perform at that load.

Steve Dunn
Indianapolis, IN

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Old 02-29-2012, 11:26 AM   #5
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Quote:
Originally Posted by BobW View Post
Thanks for the heads up. Whatever happens it's worth a try.
No problem. If you can implement Turbo Dyno data into it instead of flywheel I'll be glad to help out.

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Old 02-29-2012, 11:50 AM   #6
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http://www.rctech.net/forum/electric...ghlight=sentry

this may help a little.
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Old 02-29-2012, 12:44 PM   #7
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Quote:
Originally Posted by sdunnmcp View Post
I use a prop dyno from 1989 that we made when I worked at "Redline". It was built for brushed motors but I have changed it over for Brushless.

I have also played with the "Eagle Tree" datalogger. You may want to look at that. It will give you a lot of usefull data. The key for me was to get the "on track" amp draw. One you have that you can dyno motors to see how they perform at that load.

Steve Dunn
Indianapolis, IN
I have an eagletree data logger as well but would need to upgrade to get the 200 amp current probe. I may end up building one and using the eagletree for data just not sure yet.

Could you send me a test file to try out?
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Old 02-29-2012, 12:50 PM   #8
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I'll have a look at the turbo dyno and see if it would work for what I am trying to do. I'm already set up to handle flywheel data so that would be my preference.

Was involved in the Sentry Dyno thread a couple years back and John sent me a couple files which are the basis for what I have so far. I've tried to contact him again but no response.
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