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http://www.offshoreelectrics.com/inf...s/misctips.php
this is what they mean about caps on the motor
this is what they mean about caps on the motor
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Bill, don't get hung up on rpm ratings with brushed motors. They are so inefficient the KV ratings mean very little. Brushed motors are usually rated in watts, the higher the number, the more power produced. Conversely, the lower the number of turns, the more power produced.
The SATURN HPI is a 20 turn motor and comes with two capacitors pre-installed.The stock Aquacraft esc won't run this motor for very long. If you are ordering the Saturn from Tower Hobbies, you can also get a DURATRAX STREAK ESC for $33 and it will work with motors down to at least 12 turn. For $55 you will have a dependable, reasonably priced power system with 40% more output than the stock Aquacraft system. BGComment
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Ecoreman--now thats the answer I needed--thanks much, and will so order--BillIf you step on my tail, you had best make plans to deal with my teeth!!!Comment
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Encoreman(or anyone)
Got the motors and esc you recommended.
Now the question is--do I install in my Dumas skidaddle too or in the Dumas deep Vee 20?? Is this motor really that much stronger??If you step on my tail, you had best make plans to deal with my teeth!!!Comment
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Bill, I am not familiar with these boats. This motor will be quicker than any stock 27 turn powerplant. Don't forget to break in the motor to seat the brushes before running wide open. I used to solder two AA batteries in series,( 3.0 v) connect to the motor and run it until the batteries died. Spray with motor cleaner and your ready to let her rip. Have fun. BGComment
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Encoreman--thanks so much for your help--ain't being retired great!!!???
Put the Saturn/ESC combo you recommended in my Dumas Skidaddle TOO. This is a wood kit boat, 24 inches long.
Tried it out yesterday--there does seem to be a definate speed increase, although I didn't give it a fair test as batteries had been sitting a month without charge.
Question--I am using standard 7.2v minh batteries--will these motors/esc accept a higher voltage??? Esc will take 8.4 v. Don't know about the motor.If so is it worth it, and what would you reccommend without going lipo?
Also found out that "forward" for this combo is clockwise, probably because the are made for a car. Can I reverse wires on the motor or escape to get a counterclockwise "forward, or is this just asking for trouble.
Thanks, BillIf you step on my tail, you had best make plans to deal with my teeth!!!Comment
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if you do not have a diode, which you should (http://www.offshoreelectrics.com/inf...tky-diodes.php)
then reversing the wires shouldn't be a problem.
Lipo wise you should have an LVC if the ESC does not already have one built in, you can buy them here on OSE.Comment
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He's running NiMH batteries why on earth does he need a lipo lvc?If my boats upside down then who owns the one I thought I was driving the last two laps?
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oops, reread his post, I thought it said "what would you reccomend about going lipo" instead of "...without going lipo"Comment
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Bill, the motor can take a 7 cell battery if it will fit in your boat. I run DURATRAX 5000 Nimh 6 cell and love them. I prefer the side by side packs compared to the stick packs as the joining bars offer less resistance and allow you to change out dead or damaged cells quite easily. They are a bargain at $35 at Tower.
To correct your prop rotation, just change the the motor setting on your radio to the opposite of your current setting. Forward to reverse or reverse to forward. A word of advice, never run Nimh batteries that have not been fully charged as you will just limit the recycle life. Also, after the batts cool down from running, recharge for storage and top up before the next use and your batts will last a long time. BGComment
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