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  1. strantor

    How much do '13-'16 Ford hybrid cells weigh?

    I'm considering buying the battery out of a local wrecked 2014 Ford Fusion Hybrid (not Energi) to power a golf cart. I believe these same 5AH Li-Ion cells are used in the C-max (not Energi) and (maybe) Honda Insight. I can't seem to find a good source of data on them. I've pieced together a...
  2. strantor

    How fast could a Schwinn OCC chopper bike go safely?

    I'm looking to build a multi-KW ebike and I've got the OCC bike, a mars 0708 motor, and 15 dewalt XRP 18V batteries (info pertaining to battery viability pending). I only lack the controller, which I plan to build myself... but that's another story. I'm wondering how fast is too fast for this...
  3. strantor

    Shell Eco Marathon

    I took my kids to the Shell Eco Marathon this past weekend. From the radio ads I heard, it sounded like there was going to be a bunch of prototype electric, hybrid, and super-sipper gas cars competing. I was imagining sleek engineered products from companies in, or trying to get into the...
  4. strantor

    26 trillion dollars lent by the FED?

    Hi guys, I haven't been around here in a while. Not doing anything e-bike related. Last time I visited, I found that there are a few people on this forum (namely Sunder) who are very knowledgeable in world economics. I'm hoping someone can clear this up for me. Is Alan Grayson referring to new...
  5. strantor

    Physics of leaning in 2 & 3 wheeled vehicles

    i think I've got a pretty good educated guess about why you lean a 2 wheeled bike to turn - there's a vector of force downward from gravity, and vector of force sideways from centrifugal force of the turn; these 2 vectors combine and create a vector that points down and out of the turn. You...
  6. strantor

    Watts & HP - how puny are you?

    I've grown up around this term "horsepower" and I know what it means, but I guess I never really had a full grasp of what was going on around me. My thinking has always been that there's no way that 1 horsepower is equal to the amount of power that 1 horse can produce. I remember reading that...
  7. strantor

    what vehicle would you want if/when society collapses?

    In the face of all I'm learning about the economy and the true state of things, I'm thinking that the doomsday scenario might just be likely. I have started taking steps to be able to put food on the table in a scenario that does not involve money. I'm looking for a piece of land so I can start...
  8. strantor

    fractional reserve

    I wrote this and posted it on facebook. I thought I would share it here, as I am spreading awareness: I tagged everybody I know in that post. Not just random facebook "friends" - people that I actually know personally very well. I got a total of 4 people to reply. Nobody cares about this stuff...
  9. strantor

    Chevy volts cost taxpayer 250K each

    http://www.michigancapitolconfidential.com/16192 Reading this makes me wonder if battery tech is really getting cheaper, or if it's just getting more subsidized.
  10. strantor

    open links in new window

    Is there a setting to have external links open in another window? I couldn't find one. P.s. I know I can right click the link and choose "open in new window" - but I always forget to do that, and then I end up closing the window and I lose ES.
  11. strantor

    different e-bike setups

    Ok, some may have seen my threads about building a controller (build thread: http://www.endless-sphere.com/forums/viewtopic.php?f=7&t=32231). I have been planning on using a go-kart for a test platform. So far all my attention has been focused on the controller design and I haven't given much...
  12. strantor

    Will noise generated by switching effect shunt mV signal?

    Ok, in my last post I said I couldn't find a shunt resistor large enough for my controller. I was just looking in the wrong places. I am looking at shunt resistors like this one...
  13. strantor

    Inductance of a ME0709

    Anybody know what the inductance of a ME0709 is? The motoenergy website doesn't specify, but it does for the ME0708. The (ME0708) page says "The Inductance Phase to Phase is 0.06 Milli-Henry" - that kind of throws me for a loop and makes me think it's a typo. "phase to phase" doesn't really...
  14. strantor

    Need a recommendation on a hall current sensor

    In designing my controller, I've been slapped in the face by the reality that the ultra-low resistance, ultra-high amp capacity current sense resistor in my ciruit doesn't exist, and even if i did I wouldn't be able to afford it. Now I remember reading through old posts here and it was mentioned...
  15. strantor

    114y/o electric car

    http://dailycaller.com/2011/10/14/114-year-old-electric-car-gets-same-40-miles-to-the-charge-as-chevy-volt/
  16. strantor

    MOSFET cooling in commercial controllers; how do they do it?

    I am planning out my controller design for brushed motors. I am starting out conservative; 48V, 300A. Right now I am planning to parallel 6 IRFP4110PbF MOSFETs and I'm at the stage where I am doing my thermal design. I've calculated that I'll be dissipating 56W in each FET and that I need a heat...
  17. strantor

    Go cart build thread (in support of controller build)

    I've been posting some questions about various things and was suggested to make a build thread, so this is what it's all about: I want to build a brushless controller. I will be building a go cart as a test platform for my controller. The motor I have in mind is the ME0907, so I will be building...
  18. strantor

    Why pay big bucks for batteries?

    I'm planning a 48V go cart project. I have plenty of room for batteries, not being constrained to a bike frame. I can get deep cycle marine batteries at walmart. they are about 65lb each (est.), 12V, 110ah, 875cca, for 81$ each. I would need 4 of them in series, so: 260lbs 48V 110AH 875A max...
  19. strantor

    BLDC/PMAC controller. to build or not to build?

    I started with an idea to build a brushed DC motor controller for my Go cart. 2 weeks later, I have done tons of reading, studying, designing; even had a schematic drawn up and all the components picked out by part#, yet today all I have is a plan (actually I'm behind where I started). The...
  20. strantor

    load sharing between 2 perm mag DC motors

    This post is for the electric go cart project I'm brewing up (bought a rolling frame today, it's UGLY 50$!) I think I want about 20hp worth of motor on it. I can get 2 10hp motors for much cheaper (and lighter weight) than I can get one 20hp motor. I've seen already read...
  21. strantor

    Etek motors

    I'm planning an electric go cart project (10hp or better hopefully). I was originally going to use a truck starter motor but been thinking maybe that's not such a hot idea. I started looking into other types of motors (liftgate hydraulic motors, winch motors, etc) and found some winch motors on...
  22. strantor

    Field weakening in EVs

    Hello, first post here. I am interested in Field Weakening used in Electric Vehicles. It has been suggested to me that rather than build a huge robust (1000A+ capable) DC motor controller, full voltage could be applied to the armature and the speed could be controlled by a much smaller...
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