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  1. U

    Sevcon Gen4 model designations?

    Yep thats right, all of them support AB and UVW, only certain models support Sin/Cos
  2. U

    Sevcon Gen4 model designations?

    That's correct, 203 for a Size 6 Gen 4 relates to the encoding type, 202 & 203 support Sin/Cos encoding.
  3. U

    LiFePO4 / Li ion Parallel pack, A123 hybrid for HighPower

    I literally had this dilemma a couple of weeks ago and settled for the Samsung 20S cells which have a CDR of 30A with 250 cycles, now because the majority of the time you won't be at peak CDR all the time and you can under charge them to 4.1v to gain a few more cycles its not as bad as you may...
  4. U

    Battery options for electric kart

    Thanks ENNOID sent you an email :thumb:
  5. U

    Battery options for electric kart

    The eltek flatpack is about £200 used for a 3kw supply, a board for it costs £42, I already know how to configure it via CAN with an Ixxat, from the wealth of information out there and the fact I'm a software architect and have programmed Sevcon controllers I am 100% confident it wont be an...
  6. U

    Large drone motor for go kart

    A problem with RC motors is the lack of torque, they focus on RPM primarily, if it cant provide enough torque you will need to gear it or slap a torque converter on it otherwise it will have trouble moving and will likely overheat. Look at a Motenergy motor, they are far cheaper and more suited...
  7. U

    Battery options for electric kart

    Its more for voltage, current control and shutting off the charger when charging is complete, if I'm making it idiot proof these are things I need https://www.orionbms.com/charger-integration/interfacing-eltek-chargers/
  8. U

    Battery options for electric kart

    Its an extra layer of connectivity, nothing to be afraid of.
  9. U

    Battery options for electric kart

    Just had a thought, I could just have the charger and bms as one unit, less weight and less complex battery system and all I need is a connector that will integrate all 16 bms leads and main power. My controller handles under and over voltage and current so I don't exactly need to double up on...
  10. U

    Battery options for electric kart

    Thanks guys for the input, lots to re-evaluate, if I'm selling these packs on I think high rate 18650 is the best choice for my own piece of mind as they are arguably a safer format. A few comparisons against would be; Turnigy Graphene 8AH 6S 15C - 120 amps cont - 1.1kg - £90 (pack I use now...
  11. U

    Battery options for electric kart

    Sevcon Gen 4 Size 6, 80v good for 120v with the new firmware update, 10s burst is 660a. The motor is an ME1616. The size of the box is 595mm x 265mm x 240mm and with all 24 batteries weighs 36KG To get back to specifics, what I am looking for ideally is an upgrade to what I have now to include...
  12. U

    Battery options for electric kart

    Do one better, interview about it at 8 minutes, racing in the wet 40a3hsxC16E
  13. U

    Battery options for electric kart

    I already have sevcon gen4 size6, and my kart already runs on it, which I've already raced.
  14. U

    Battery options for electric kart

    To be specific LiPo is an issue because of maintenance with storage voltage, LifePo4 is an issue because of extra weight and cost, 18650 has an issue with the steep discharge curve. I'm looking for ways to mitigate those problems so I can evaluate my options with a better understanding. If you...
  15. U

    Battery options for electric kart

    Hello guys, Just posting this as I've been going back and forth now for a while weighing up the pros and cons of different battery chemistries and formats to meet the needs of an electric kart. LiPO for my use case is the best fit, its high discharge, high energy density, low sag, flat...
  16. U

    Go Kart Update

    We actually had wet tyres for the second half of the day which was great! Also got to see how the components handled in the wet, still need an enclosure however! It was a fun day :lol:
  17. U

    Go Kart Update

    Aha still a long way off from the 100hp superkarts! Did an interview at my local track and took it out in the rain, starts at 8 minutes! 40a3hsxC16E
  18. U

    Go Kart Update

    Almost got it installed onto the new shifter chassis, had to make a few adaptations but nothing too much!
  19. U

    Go Kart Update

    Hey mate, about 100v and 660a, I haven't put it on a dyno yet but Nuxland did a few with a similar motor, he got 75hp at 117v and 650a I believe on a dyno, he got 0-60 in about 2.6s using a 16t front and 45t rear if memory serves...
  20. U

    Go Kart Update

    Aha imagine that :lol:, I'm just going to make it the best I can with what I have, best bang for your buck
  21. U

    Go Kart Update

    No issues whatsoever, batteries stayed cool, motor stayed under 60c! About 1.9333 there (29t rear 15t front), diameter is 11" for the tires :), just swapped it to 2.4166 (29t rear 12t front) to give it a bit more oomph! Just purchased the sevcon clearview display to mount to the wheel And...
  22. U

    Pictures of 70 mph E Kart

    Nice! I'm trying to reduce weight on my kart, at 145 its so heavy! The weight of yours is perfect! I just bought one of the Sevcon Clearview Displays to mount on the wheel, I think Curtis do one as well http://www.directindustry.com/prod/curtis-instruments/product-12483-1485723.html
  23. U

    Pictures of 70 mph E Kart

    Looking really good! Whats the weight so far? And that gauge looks interesting, where did you get that?
  24. U

    Electric Kart build

    Nice one bud! Did you get regenerative braking sorted for them or did they decide to just have the mechanical brake?
  25. U

    Go Kart Update

    Here is one of the fast laps one of the professional karters did W3mamEvfwyk
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