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  1. S

    Rc controller question

    ahhh... ok, so the BEC is already built in, and there's power going out of the controller via the built in BEC that would go to the receiver if i had one...right?
  2. S

    rc motor for gocart

    sorry for my slow reply guys. thanks for the links and reassurance that the motor will be powerful enough... i was just a bit hesitant because of the extreme weight of four 12 volt 100ah batteries. the link that was given appears to be using litium batteries, anyone have a link with someone...
  3. S

    Rc controller question

    i picked up a RCmotor and controller to get familiar with the equipment....on the controller it says : BEC :3A/5V does this mean i need a BEC?...or is there a built in BEC? why woud it say BEC on it?...the controller needs a siganl to turn it on right? usually from a receiver....but why would...
  4. S

    rc motor for gocart

    anyone know how much torque these big outrunner rc motors can put out? if i were to make a go cart with four 12 volt 100ah car batteries, would there be enough torque to push it or would it burn up? id aim for a top speed of around 45 mph with reasonable acceleration, doesnt have to be neck...
  5. S

    hows this bike look as a candidate?

    we're reaching a point where manufacturing techniques are being standardized now, if you want to see crap products go back about 10-15 years....but nowadays theres so much competition, its harder for companies to stay alive unless they provide acceptable quality and take a hit on their profit...
  6. S

    pedal/crank spacing

    thanks guys...im asking about the width because im thinking about ripping out the entire crank assembly and putting a planetary gear setup in its place with a freewheel and axial motor. just examining my options.
  7. S

    pedal/crank spacing

    so would the wider pedal spacing affect the effort it takes to pedal the bike?
  8. S

    hows this bike look as a candidate?

    this bike company is an oem manufacturer for many famous brand names. other than the frame, do the other components such as the gears, cranks, brakes and wheels seem to be of respectable quality? i found long ago that price doesnt always reflect quality, but thats the mentality that alot of...
  9. S

    pedal/crank spacing

    what kind of effect would spacing the cranks/pedals wider apart have on pedaling?..say about 3 inches total, thats about 1/2 inch on each side.
  10. S

    hows this bike look as a candidate?

    hows this look for a donor ebike, are the parts ok or are they junk? will cost me about $300 FULL 6061 ALLOY SUSPENISON FRAME 4 BAR LINK INTEGRATED THREADLESS HEADSET, SPINNER GRIND OS FORK, ALLOY STEM & H/B SHIMANO ACERA 24 SPEED WITH SHIMANO ST-EF50 SHIFTER CRANK SET FSA SIS DRIVE...
  11. S

    Lipo short circuit currents

    so how does this batt spec sound for a SLA?: AH: 12 amps ESR : 2.5 milli Short Circuit: 800 amps Cell voltage: 2 volts weight : 1.15 lb viable alternative to lipo?
  12. S

    Cheapest backup power for house? Discuss.

    Siberian Husky on a treadmill... im serious...pets do nothing, its time to put mans best friend to work. get a cow and make it walk a circle and turn a generator...with the strength of a cow i bet it would be able to produce a constant 1000 watts for however long a cow can walk...and it will...
  13. S

    Lipo short circuit currents

    since there doesnt appear to be any short circuit current specs available...how about a guess? so do you guys think a 3.2 volt 10ah cell would be capable of 600-800 amps short circuit? if anyone has a current discharge or power discharge chart that would be nice.
  14. S

    Lipo short circuit currents

    another thing ive been wondering is...why would a high discharge 'c' rate be advantageous?...i know its so you can use a smaller pack to get the needed currentand charge time....but this would also lead to premature energy loss compared to a pack that was designed to put out constant current at...
  15. S

    Hub motor with RC ESC anyone?

    anyone try using an RC ESC with a hub motor yet?
  16. S

    Lipo short circuit currents

    just trying to figure out what actual capacities/energy densities are...
  17. S

    Lipo short circuit currents

    what are these 3.2 volt 10 ah Lipo cells currently putting out for Nominal short circuit current per charged cell? thanx
  18. S

    Silicon Green Saver Batteries hype??

    they started out good, but are still suffering from a tarnished reputation do to a bad batch / and counterfeits ..one of their suppliers gave them inferior lead plates and they would literally start to disintegrate within a few months. i wouldnt mess with them until they reestablish themselves...
  19. S

    Higher ah cells at the ends

    anyone ever put higher ah cells at each end of their series of cells? for example getting a 48 volt string you would need 15 cells, so you would put a higher ah cell at each end...with 13 lower ah cells inbetween.
  20. S

    Who's using Lipo without a BMS?

    thank you for your lengthy and detailed reply...i have had a suspicion regarding bms applications... but those reading this post shouldnt throw away their bms units...ok...lol anyone else?
  21. S

    Who's using Lipo without a BMS?

    anyone out there using Lipo without a BMS, just straight cells...and no BMS or Balancing circuit? if so please let me know how long youve been doing this and if there has been any effects on their performance..oh and 'S' & 'P' specs would be helpful too. i read by some users th Konion cells...
  22. S

    True capacity of those 750watt and up hub motor?

    i edited my post and you replied with just about what i was going to say...lol was trying to avoid making an aerodynamic fairing, but now it looks like it is going to be a requirement...i read somewhere that it takes 5 mph to push past the wind resistance at around 55mph...i think this was by...
  23. S

    True capacity of those 750watt and up hub motor?

    seems like i may have to use a higher kv motor and possibly a dual motor setup to defeat low speed lag. anyone know the kv for the etek type motors? hmmm...so no one right now is using gearing to help get to 75mph ,well i suppose you cant with hub motors...well on second thought i bet you can...
  24. S

    True capacity of those 750watt and up hub motor?

    whats the highest voltage anyone has given a hub motor?... is 75 mph obtainable with a hub motor without burning it up? im planning a 60v40ah or 72v30ah system .with the frame built from the ground up with motorcycle suspension. if a hub can handle this, than that makes things alot easier...if...
  25. S

    Motorcycle wheels/tires on NEV/Regular car

    i can get motorcycle wheels without spokes, more like really skinny car rims...but i wouldnt be sure if they were designed for lateral load. looking through the DOT guidelines, man there's alot of stuff to go through.
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