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  1. N

    Upgraded my controller and battery, but now lower top speed?

    Apparently I just wasn't thorough enough - following the plan outlined in this image [https://endless-sphere.com/w/index.php/File:Phase-Hall-Wire-Combinations.png] got me to the right combination this morning and now it's practically a rocket ship. Thanks again!!
  2. N

    Upgraded my controller and battery, but now lower top speed?

    Awesome, thanks for the response and the links! I followed the first one and found a new combinations that freewheels perfectly, but when I ride it, it provides almost no torque, is fairly loud and very jittery, and the wires still get hot fairly quickly. Then, I went through and tried every...
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    Upgraded my controller and battery, but now lower top speed?

    Hey guys, So this will be my third ebike build - one with hobbyking lipos and a lyen controller that worked great, one with a home-built battery and 20 dollar chinese controller that also worked great, and then.. this one. I got a Lunacycle 20S (~84V hot) battery pack and am using a Lyen...
  4. N

    Aiming for 40+mph with RC

    Thanks for the info, it's extremely valuable to know that belts get worn down significantly faster. Do you know how obnoxious a primary chain drive would be at, say, 6000 rpm? If it was on a 22T drive sprocket of, say, 1.125 inch radius, then the chain speed would roughly equal the rotational...
  5. N

    Aiming for 40+mph with RC

    Haha yes, I am indeed a noob, but I've been trying to do my homework. I'll most likely be looking into re-terminating the RC motor to wye to get a much more manageable 92kv, and then possibly using an 8.5:1 reduction, which, with the stock highest timing belt pulley I've seen being around 120...
  6. N

    Aiming for 40+mph with RC

    Thanks for all of your input, I've been thinking about whether I should run my 160kv motor at 44v or 22v, since I want to only have a single stage reduction, and if you halve the voltage and keep the max amp draw the same, you halve the available power. But, from that awesome calculator (thanks...
  7. N

    Aiming for 40+mph with RC

    Thanks for the input! I'll have to look more into the capacitors between the controller and the batteries and how to handle the high amp charge/discharge when connecting the batteries, I've seen people recommend resistors and whatnot. I'm not sure how often I'll be riding the bike without the...
  8. N

    Aiming for 40+mph with RC

    Also, is it "necessary" to freewheel an RC motor? Does anyone know how hard these are to fight when they aren't being powered? Right now I have a 1000W direct drive hub motor, and biking without the motor running is like having a parachute attached to the back of the bike. Obviously...
  9. N

    Aiming for 40+mph with RC

    Thanks for the replies! So the new updated plan is a 2-stage reduction of a Turnigy 80-80 160kv of around 1:16 overall to begin with, the larger motor size should help control the temperature and I'm also looking into designing higher airflow to the motor to help with that as well. I have also...
  10. N

    Aiming for 40+mph with RC

    Thank you very much for the quick responses! The area I would be using it in doesn't have many hills, so low climbing power wouldn't be a problem. My lipo cells are 6s 5AH 20C, and I currently have 4 of them, but I would most likely purchase 4 more for a 2s4p layout. If heat generation will...
  11. N

    Aiming for 40+mph with RC

    Hello, After reading about MrBoots success with the turnigy 6374 150kv motor, and after looking up some specs on it, I am planning on running it at 12s Lipo with a Turnigy 100a 12s ESC and a direct-drive 11:90 reduction to a 26" rim, which is roughly 27-28" after the tire thickness is included...
  12. N

    Hub motor - effectively an electric brake.

    Well, I dont really know what brand it is other than Ebay motor kit from china from daoji666, which works fairly well now that it's up and running, but I dont exactly go the 35mph the ad promised. Anyway, the connector pins to the motor are pretty flimsy, just make sure all of those line up...
  13. N

    Hub motor - effectively an electric brake.

    The hall wires were mixed up, getting them all lined up got it to work. The phase wires were matched up true to color and the hall wires had to change a little bit, blue to yellow, yellow to blue, green to green, but it works fine now :)
  14. N

    Hub motor - effectively an electric brake.

    Hey guys, that totally did the trick! Thanks a ton for all your help, I never would have figured it out otherwise. Hopefully people who have the same problem will be able to get some help from this too. Cheers!
  15. N

    Hub motor - effectively an electric brake.

    Thanks a lot for the excel file, I'll definitely try it tomorrow and let you all know how it goes! and haha yes neptronix, I discourage anyone else from getting an ebay kit, their messages always come back with a thousand question marks in them. Thanks again for all your input!
  16. N

    Hub motor - effectively an electric brake.

    Okay, so. No photos because I dont have a photobucket account and cant link them to the page. However, I do have videos, which I find much more helpful at describing the problem with this motor or controller or whatever. What happens in the video is what I've been trying to describe, it's much...
  17. N

    Hub motor - effectively an electric brake.

    Haha okay, I'll have pictures of everything up later today, probably around 4:30 eastern time
  18. N

    Hub motor - effectively an electric brake.

    First of all, thank you all for the quick replies :) Yes, the motor will turn freely when spun by hand, but I have not gotten it to spin under its own power yet. When it is attached to the controller, it will still turn just as easily, it only becomes difficult when the throttle is applied...
  19. N

    Hub motor - effectively an electric brake.

    So I bought this hub motor kit off ebay.. http://cgi.ebay.com/1000W-48V-ELECTRIC-BICYCLE-MOTOR-KIT-Motorized-scooter-/130328433770?pt=Cycling_Parts_Accessories&hash=item1e582e146a#ht_6317wt_1139 The actual twist throttle and battery indicator aren't quite as sketchy as the ones despited in the...
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