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Can anyone tell me about this motor?

Can anyone tell me about this motor?

Old 08-13-2015, 05:20 PM
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Questions?? Can anyone tell me about this motor?

I have a few of these completely unopened/used UMP Dymond 907 motors. I can't really find anything about them, like what they're worth or if they're even good.
Attached Thumbnails Can anyone tell me about this motor?-11895589_931712213542347_1759419213_o.jpg   Can anyone tell me about this motor?-11902217_931712273542341_1419296601_o.jpg   Can anyone tell me about this motor?-11863188_931712336875668_1160678480_o.jpg  
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Old 08-13-2015, 05:40 PM
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willmob1 looks like a new old stock 24 turn brushed motor for 1/10 scale cars ,buggy, and trucks , were used for stock class racing everyone had to have same 24 turn motor
some were non rebuildable because of bent tabs on back of can some were rebuildable
if the can had small screws on back of can to take back plate off and remove the armature the armatures were usually labled 24T , 19T , 13T etc the lower turn armature the faster you went ok
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Old 08-13-2015, 08:35 PM
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I think I actually had one of those a LOOOOONNNGGGG time ago, really liked it(pretty sure though it was a budget mod, not for any stock class), I think there were different colors to indicate different winds(much like Trinity did with their Speed Gems motors back in the 90's & early 00's), though I can't remember which ones were which. NO idea what one might be worth today...
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Old 08-13-2015, 09:52 PM
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If the labeling is correct it appears to be a common stock motor, which would be a 27 turn (not 24).

Check the shaft end for a ROAR 91 stamp. If it has the stamp it has the locked armature with 24 of timing advance, which was a new rule for 1991. If not it is older than '91, which is my guess based on general appearance and fading memory. Guessing EPIC based motor?

Doubt if it's worth much, possibly something to a collector, as it is new old stock. A lot of the value would be based on the popularity of the brand, connection to major races, etc, I suspect.
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Old 08-13-2015, 10:08 PM
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I'm pretty sure that I bought a Diamond brushed Mod motor from a hobby shop in the 80s when my dad took me to buy my first RC10. I only remember because we were on vacation in Chicago. I don't remember seeing that brand here in California. I'd imagine I was 14 or so....86 probably.
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Old 08-18-2015, 02:20 PM
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You couldn't buy them off the internet back then. People in California didnt know much about what was going on in Chicago, unless RC Car action had an article or ad.
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Old 08-18-2015, 03:52 PM
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Plastic cap says "Stock". Never heard of these either.
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Old 08-19-2015, 09:16 AM
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Originally Posted by Willmob1 View Post
I have a few of these completely unopened/used UMP Dymond 907 motors. I can't really find anything about them, like what they're worth or if they're even good.
Standard EPIC 27T brushed motor from the late 80s early 90s. Companies just as today buy bulk motors and put their label on them. United Model is out of Champaign ILL and the style being EPIC Yokomo silver can, probably a 24 degree.

Not a super fast motor, in fact this type (silver can) of motor was usually a handout motor at NORRCA and ROAR races.
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Old 08-19-2015, 09:36 AM
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Originally Posted by Mudcat981 View Post
Standard EPIC 27T brushed motor from the late 80s early 90s. Companies just as today buy bulk motors and put their label on them. United Model is out of Champaign ILL and the style being EPIC Yokomo silver can, probably a 24 degree.

Not a super fast motor, in fact this type (silver can) of motor was usually a handout motor at NORRCA and ROAR races.
i agree with you mostly. i have a diamond no 102 (once again an epic motor) and it is quite rapid for a 27t in my optima mid. then again that is a fairly light buggy, i have a feeling in something heavier it may struggle though
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