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Old 10-14-2004, 12:52 PM   #1
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Default Which would you use???

Ok Let's say a motor has an effieciency around 81%, puts out 162 watts peak and spins 30k Rpm with brush/spring setup #1... Same motor with Brush spring setup #2 puts out 168 watts, 78% efficency and spins 31k Rpm....

Torque is almost dead even between the 2....

spring set #1 is softer than # 2...
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Old 10-14-2004, 12:55 PM   #2
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I would go with #2. It sounds like the springs might be too light on the first one and the brushes are bouncing when the RPM's come up.
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Old 10-14-2004, 01:28 PM   #3
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No. 2 - More watt's, more rpm.
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Old 10-14-2004, 01:43 PM   #4
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Very tight track... This is a track we've always run stock only and now we're going 19 turn....
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Old 10-14-2004, 06:21 PM   #5
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Power is power....as long as the one springs don't cause a fade of the motor because of excessive arching, then always take the most powerful motor....assuming this is a 19t...as efficiency is really not that big of a deal. Now, if efficiency matters, then the question also becomes, will this motor make runtime.


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Old 10-14-2004, 08:35 PM   #6
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for most classes of racing nowadays, efficiency is no problem, as eddie mentioned. Thankfully battery technology has evolved to the point where 5 minute races are achieved easily even with the hottest motors (except maybe mod tc on a really hot day). Stock, 19 turn, without a question go for the higher watts.
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