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05-21-2009, 10:07 AM
| #1 |
| I wanna be Dave Join Date: Jul 2005 Location: North Idaho
Posts: 3,648
|  Motor Turns
I need a new motor :-(, my 65T has lots of torque, but even with an 18t pinion, my axial is still slow. I'm looking at going to a 35 or 45 turn motor (no, not ready to go brushless yet and my rooster crawler would likely fry under a 11.1v lipo, only rated to 8.4v) and I was wondering what the RPM difference is between the different motors. For instance, at 5vdc, what the motor RPM would be for a 65T, 55T, 45T, and 35T?
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05-21-2009, 11:30 AM
| #2 |
| I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
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Directly from Holmes' website: Motor speeds (taken from random and averaged sample @ zero timing & 3100rpm): 10t = 6526 rpm/volt 15t = 4317 rpm/volt 17t = 3753 rpm/volt 20t = 3216 rpm/volt 21t = 3082 rpm/volt 23t = 2790 rpm/volt 25t = 2588 rpm/volt 35t = 1565 rpm/volt 45t = 1210 rpm/volt 55t = 987 rpm/volt 65t = 837 rpm/volt |
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05-21-2009, 12:29 PM
| #3 | |
| I wanna be Dave Join Date: Jul 2005 Location: North Idaho
Posts: 3,648
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You sir, ARE THE POO!!! Thanks a lot for the info!!! Quote:
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05-21-2009, 12:46 PM
| #4 |
| I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
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No problem. Glad to help. |
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05-21-2009, 12:50 PM
| #5 |
| Rock Crawler Join Date: Apr 2008 Location: SO CAL
Posts: 579
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those motors kick ssa! I have his 30turn and it kicks ssa! just enough wheel speed, and plenty of torque!  they might be a bit more but man they sure are purdy! |
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05-22-2009, 10:50 AM
| #6 |
| I wanna be Dave Join Date: Mar 2008 Location: Wayne county. PA
Posts: 2,507
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i'm running a 55t with 17/87 gears and i'm finding myself turning down my throttle travel cause i had to much wheel speed....then i adjusted it up till i had the wheel speed that suites me...........bob .... |
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05-22-2009, 09:02 PM
| #7 |
| Rock Stacker Join Date: Oct 2008 Location: Lillington
Posts: 55
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i am running the 55T Rooster combo w/ a 2s 2200 lipo geared 87/14 it has plenty of torque and wheelspeed for me....i was running a 6C 1500 NIMH saddle pack and the difference is like night and day |
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