Search results

Date Relevance Most replies

  1. O

    BLDC Controller recommendations (72v nominal, >=150A peak DC Amps)

    Definitely an Adaptto BMS pictured. Rest of it appear to be renders, sure looks like vaporware... Real answer is Nucular - only downside is the wait. They are working towards serial production so I expect the supply will dramatically improve later in the year.
  2. O

    Sur-Ron - New Mid drive Bike

    It's an ASI - so... unreliable, comparatively difficult to configure, dodgy support (thanks to resellers rather than the company themselves). It's better than the stock controller IF you can get it configured correctly. Nucular is a better option in every regard, with the notable exception of...
  3. O

    My fast road DH Comp - 2.5kwh 18650's/Mobipus/QS V3

    If you're interested check out the for sale thread - https://endless-sphere.com/forums/viewtopic.php?f=9&t=109798 Cheers
  4. O

    My fast road DH Comp - 2.5kwh 18650's/Mobipus/QS V3

    It's been a while! I retired my Giant DH comp a while ago after purchasing a Surron which I've been modifying. Now it's for sale! Everything still works great, still great fun to ride and was still very reliable - just surplus to requirements. I'm moving overseas in the new year and so...
  5. O

    Sur-Ron - New Mid drive Bike

    Sounds about right. It's winter here - so cooler ambient, around 15c - I struggle to get to get motor temps over 70c over 16km journey, 10-15 hard 500a launches - 60 km/h cruise, 85km/h peaks - 16.2kw power peak. Holds up remarkably well to big power.
  6. O

    Surron Motor tuning with datalogs! FOC experts needed

    I realised I never posted an update here - vasiliy released new firmware based on mine and others feedback which completely resolved the non linear behaviour and now this thing RIPS. Still on 16s stock battery with a parallel booster pack from old 30qs, now hits 16.2kw on a daily basis. Power...
  7. O

    Sur-Ron - New Mid drive Bike

    He's using a shitty chinese thumb throttle with abysmal voltage curve and complaining of throttle issues. Stock Sur-ron throttle assembly works fine, Domino or other Pot type throttle will work better. By increasing minimum voltage, he's losing any function over the first % of rotation - this is...
  8. O

    Surron Motor tuning with datalogs! FOC experts needed

    That is the million dollar question! This is doubtless due to BEMF, however the fact that it increases so non-linearly with motor RPM is unusual to me. I have done a bunch of iterative testing with various settings. The best performance was with my original settings, with everything essentially...
  9. O

    E.R.T \ Alan Hu nightmare.

    I had a similar experience buying a motor from him about 4 years ago. Nothing has changed, he is incapable of functionally running a business and communicating to even a basic degree. Chargebacks are the way to deal with this BS, call your credit card company and get your money back.
  10. O

    Surron Motor tuning with datalogs! FOC experts needed

    My favorite controller by a mile, the Nucular 24f has recently added the ability to datalog to the onboard microSD card. This allows for some awesome analysis that previously would only be possible with a handful of high end controllers and custom logging solutions or with a lot of external...
  11. O

    Neematic - 20kW middrive bike

    This is such a stupid, embarrassing error to neglect the kWh on your own launch brochure. By the sounds of it, pack is likely 14s. To deliver 15kw it's going to be doing at least 300 battery amps. Sounds possible, but unusually high. Math doesn't really work out with 18650's though, 3ah cells...
  12. O

    Fatal ebike crash trial

    For some additional context, I've read he didn't leave the scene of the accident in the sense that he was running from responsibility - he left because after 10 minutes or so the mood of the crowd was beginning to become agressive. He immediately went to police of his own volition. Perhaps in...
  13. O

    Sur-Ron - New Mid drive Bike

    This is Jack Cecil - he's a stand up dude. He's posting a lot of Surron related content on Youtube recently. He's an experienced importer and has a good rep in the performance car scene. He's partnering with ERT and Litespeed which I was initially very suspect of, but to their credit they do...
  14. O

    Roman Kostrygin - Sur-Ron 16kw outrunner

    Welp! Guess not. That didn't last long. Whoever you are - you're welcome here and we value contributions like EG often provided. I don't think anybody took issue with his efforts, just the misleading information he interspersed in there, stated as absolute facts. When corrected, he took it way...
  15. O

    Roman Kostrygin - Sur-Ron 16kw outrunner

    :lol: Absolutely fantastic. I'm glad 'motormodder' is going to follow in EGs footsteps and evaluate this motor. Hopefully he's a little more open to learning as he goes and doesn't take everything overly personal.
  16. O

    Neematic - 20kW middrive bike

    Thread title is 20kw but all the published specs are 15, which is possible, though seems unlikely to maintain that output for any length of time. 2.2kwh pack assembled from 18650s or 21700 cells is pretty maxed out at 15kw output. Personally, I think the pedals at this power level are...
  17. O

    GM retreating into its shell ?

    Right... 90k income - Aus $22,597. NZ $21,871. You are familiar with the function of numbers right? I would have paid $3500 more in Aus this year, not including all the other ways Australia essentially taxes people, health insurance, car registration, mandatory vehicle insurance which are all...
  18. O

    GM retreating into its shell ?

    Mate, you post a lot of bollocks - but this takes the cake. NZ has incredibly limited exposure to all of the industries you've just described, yet has lower income tax across all brackets - Aussie 90-180k bracket is 37% and then 45% on anything higher - NZ top rate is 33% on anything over 70k...
  19. O

    Nucular electronics - complete kit for ev!

    100% buy the 12f. For what you're doing you will want the phase amps, power limit doesn't matter so much.
  20. O

    Motortrend article with tons of info about Tesla’s Cybertruck

    That is very much already the case. It's possible to pick up an Mk5 golf/scirroco/touran/ from ~2005 to 2008 for peanuts, the DSG repair for most of their common failure modes, or even just 'routine' clutch replacement exceeds value of the car by some margin. After diagnosing serious DSG or...
  21. O

    Wind and Solar vs Coal, Gasoline, Nuclear

    Likely not economic to reuse, given how much larger newer wind turbines have become. There's also been a lot of iterative improvement in blade profile over the last 15 years.
  22. O

    Observed trials bike designing

    Sounds cool. Not sure you're going to have enough phase amps or response out of the Kelly to snap the front wheel up though, they're known for being underwhelming on low end torque and low speed throttle response.
  23. O

    Ebikes are they AC, DC or?

    Not really true and somewhat confuses the issue further. AC induction (as in your link), PMAC (Permanent magnet AC) motors, BLDC or PMSM are all driven by AC wave forms (in the context of EVs of course) Waveforms are created by pulse width modulated DC - view the video above :) The precise...
  24. O

    100% discharge rate capacity

    No, again, your graph is meaningless. The % figures you reference have ZERO bearing on how this works. Forget you ever read the table with those figures as they have literally nothing to do with calculating lifespan, efficiency, power etc.
  25. O

    Observed trials bike designing

    Running a motor on a lower voltage will merely reduce its usable RPM range, plus power in the higher portions of that range. Due to the effects of bemf, you will be unable to drive the same current as RPMs increase vs if you had a higher voltage pack. The low down torque will be largely...
Top