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Old 06-11-2003, 01:17 AM   #1
Vic
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Default Indi Dyno

Hi,

First of all does anybody have it, what are your experiences?
I just bought one and tried it.
Compared to what is on the instruction manual I have definitely different number do you guys know if this is all right or what should I do?

Out Voltage Amp Con(interference)

Instruction 4 ~5.5 ~28
Manual

My 11T motor 4 9.2 45


By the way comm. just been cut and new brushes.

Any help would be appreciated!

Thanx
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Old 06-11-2003, 08:33 AM   #2
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I have one and like it. It's NOT a Turbo Dyno, and is best used to compair motors (since it is a no load dyno). I always use 5vdc for the set voltage. After that, it gives RPMs, some unknown torque rating and a comm number (which I haven't figured out since I really don't see a use for this number other than seeing if the cut was good...lower number, better comm condition). The more you use it, the more you will get used to what numbers to expect.
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Old 06-11-2003, 08:46 AM   #3
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Does this mean that I have more torque on my 11T?

Thanx!
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Old 06-11-2003, 09:00 AM   #4
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I have one and like it a lot.

I've had problems in the past with my Turbo 35BL charger cutting out when I draw too many amps while using it to power my lathe. The Integy "dyno" does a great job of powering my lathe and doesn't cut out on me.

As far as using it to judge performance goes, it's a good tool. I mostly use it to make sure that the numbers on my "factory" tuned stock motors stay the same or close to what's on it's manufacturer's dyno sheet / sticker. You can do the same thing for mod motors if you take some initial measurements on a new motor. The only two measurements the dyno takes that are of real interest are amp draw and RPMs. 99% of motor maintenance is cleaning, comm cutting, and lubrication and knowing that what you're doing is helping, not hurting, the motor is really helpful. It also does a super job of breaking in new brushes.

So to review...

The positives
1. Does a great job powering motor lathes.
2. Helps keep an eye on the consistency of your motors if you have an established baseline like a dyno sheet.
3. Super for breaking in new brushes

The negatives
1. A little pricey, but deals can be found on eBay
2. Most of the performance numbers provided arenít that useful.
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Old 06-11-2003, 09:08 AM   #5
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How long do you Guys take to break-in your motors?
What do the amp draw and RPMs tell me?
Is 9.2 A at 4V and 25000 RPM ok for an 11T motor, is there a reference sheet I can put my hands on or do you have one?

Thanks in advance?
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Old 06-11-2003, 09:48 AM   #6
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Vic,

If you're interested in some good advice on tuning motors I'd suggest this book.

http://www.trafford.com/robots/01-0488.html

The maintenance tips are outstanding and Big Jim does a great job of cutting through the marketing motor companies throw at you.

You might want to visit his online forum before purchasing the book.

http://www.rccars.com/forums/forumdi...?s=&forumid=19

Good Luck!
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Old 06-12-2003, 02:52 AM   #7
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mushu

I took your advice-ordered the book, it seems really helpfull.

Thanx
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