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12-01-2005, 05:18 PM
| #1 |
| Rock Stacker Join Date: Apr 2005 Location: RC SYNDICATE
Posts: 90
|  Quick Question, Please help??
I currently own x2 Kyosho Mag MAyhems and was wondering if i could get away with using an Emaxx ESC for this. I know i should be running a SuperRooster for best rsesults but i can get my hands on this Emaxx ESC for next to nothing. I dont have the time to sit here for a length of time and appologize if this questions been answered 10000x Torredo. |
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12-01-2005, 05:38 PM
| #2 |
| MODERATOR™   Join Date: Jul 2004 Location: Ohio
Posts: 18,928
| "Motors in series put the same load on the speed control as the total number of turns in both motors. For this set-up you can use motors with as few as 8 turns and the speed control will think its driving a 16 turn motor. You will get the speed and run times of a 16 turn motor with twice as much torque that is needed for heavier models." Help any? |
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12-01-2005, 05:58 PM
| #3 |
| 06 Super National Champ  Join Date: Jun 2004 Location: Stark Industries Bar and Grill
Posts: 11,361
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Connect one of each of the mayhems to the motor leads on the EVX. They're connected in parallel internally if I remember right. The Mag Mayhems are 22 turn motors, should be fine on the EVX. Trinity makes lower wind motors for the E-Maxx. Read the tech article that Twisted did on wiring the EVX for single battery use and do that. Run a RX pack...the BEC portion of the EVX can't support 4WS. Last edited by JasonInAugusta; 12-01-2005 at 06:01 PM. |
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12-01-2005, 06:05 PM
| #4 |
| MODERATOR™ Join Date: Jul 2004 Location: Ohio
Posts: 18,928
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The EVX can do 11 turns?
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12-01-2005, 06:26 PM
| #5 |
| Rock Stacker Join Date: Apr 2005 Location: RC SYNDICATE
Posts: 90
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i knew you guys would help me out....Thanks a bunch~~ Appreciated!!! |
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12-01-2005, 06:42 PM
| #6 | |
| 06 Super National Champ Join Date: Jun 2004 Location: Stark Industries Bar and Grill
Posts: 11,361
| Quote:
Check it out... http://www2.towerhobbies.com/cgi-bin...?&I=LXWR57&P=7 The EVX will handle two of'm...the VX12 did as well, even though they say 19-27 turn motors. The stock Maxx motors are 23 turn. Last edited by JasonInAugusta; 12-01-2005 at 06:44 PM. | |
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12-01-2005, 06:56 PM
| #7 |
| RCC Addict Join Date: Apr 2004 Location: Cincinnati Ohio
Posts: 1,673
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The evx is 14.4v right? Will the mag mayhems handle 14.4v?
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12-01-2005, 07:07 PM
| #8 |
| 06 Super National Champ Join Date: Jun 2004 Location: Stark Industries Bar and Grill
Posts: 11,361
|  Between all the bourbon and Coke I didn't think about that. Wait...I did. Told him to do the single pack mod. ;) |
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12-02-2005, 10:57 AM
| #9 |
| Quarry Creeper Join Date: Nov 2005 Location: Planet Earth
Posts: 350
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I would consider that max voltage for mag mayhems.
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12-02-2005, 12:00 PM
| #10 | |
| owner, Holmes Hobbies LLC  Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
| Quote:
I find that statement laughable and incorrect. Basically it states that you can keep your speed and runtimes constant and get 2x the torque for free. Torque is a constant of amp draw. hmm, something doesnt add up. lets say going 10mph takes 100Watts 10 volts, 10 amps When two motors are wired in series the voltage is split in half between the two (assuming they have = resistance), each motor sees 5 volts, and they draw amps independent of each other. This means they spin half speed since motor speed = voltage x kT. If they are both fixed to the same spur, we can assume that the amp draw will be the same for both motors. Since the motors are spinning half speed the amp draw must double to 20 amps to keep the same power of 100 Watts. You will gear up to compensate for the slower motors. This is where the extra amp draw comes from. I dont know who made that quote, but something has to give to get extra power. I explained this a long time back somewhere on this board. | |
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12-02-2005, 12:29 PM
| #11 |
| Quarry Creeper Join Date: Nov 2005 Location: Planet Earth
Posts: 350
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Yes, the first two sentenses are a good general rule, but the last part of the last sentense is not correct unless explained a bit further.
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12-02-2005, 03:05 PM
| #12 |
| MODERATOR™ Join Date: Jul 2004 Location: Ohio
Posts: 18,928
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It's from here: http://www.tik.at/wdmotor.htm |
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12-02-2005, 04:28 PM
| #13 | |
| owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
| Quote:
I have seen that quote somewhere else too. It seems that they are saying that two 8 turns will be like one 16 turn if they are wired in series, which I agree with. What he forgot to mention is that you will have to double your voltage and run two 6 cell (or enter your preference) packs in series so that each motor will still see full wattage. Add power, get power. It would be more efficient to use one powerful motor wound for high voltage instead of using two smaller motors, however. Dang, am I spouting efficiency on crawlers in the Newbie section? Last edited by JohnRobHolmes; 12-02-2005 at 04:57 PM. | |
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12-02-2005, 04:34 PM
| #14 | |
| MODERATOR™ Join Date: Jul 2004 Location: Ohio
Posts: 18,928
| Quote:
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12-02-2005, 04:36 PM
| #15 |
| MODERATOR™ Join Date: Jul 2004 Location: Ohio
Posts: 18,928
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And actually, I've used two 27 turn motors in series, and they do resemble the single 55 turn motor, but there is more power for sure.
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12-02-2005, 04:57 PM
| #16 | |
| owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
| Quote:
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02-08-2006, 03:00 AM
| #17 |
| Rock Stacker Join Date: Apr 2005 Location: RC SYNDICATE
Posts: 90
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this whole series & parralel talk is the same as audio.... series = when x2 8ohm subs in series = 16ohms parralel = when x2 8ohm subs in parralel = 4ohms when wired in parralel will draw half the ohms meaning a harder hitting bass line = more pull, as when wired in series eases off and allows for a cooler setup thus in this case = more runtime. Last edited by Torredo; 02-08-2006 at 03:03 AM. |
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