Search results

Date Relevance Most replies

  1. T

    Baserunner z9 long throttle delay from stop.(Solved)

    Plenty of data on endless sphere as well -Field weakening does not raise phase current. The controller generates a second "signal" on the phase wires which works against the magnetic field of the motor to make it weaker. With a weaker magnetic field the motor makes more rpm/Volt, but torque is...
  2. T

    Baserunner z9 long throttle delay from stop.(Solved)

    Field weakening doesn't increase power it just moves the no load speed point further up so you can still have power to use without back EMF limiting you like normal.
  3. T

    Baserunner z9 long throttle delay from stop.(Solved)

    Geared hubs suck for shedding heat. Have you looked at the gmac or ezee at all. The sx2 is a great motor but it's not on par with them. It's in between a small g311 and a large ezee/gmac In grins own words lol 4.6 Field Weakening for Speed Boost One useful feature of the Phaserunner as a field...
  4. T

    Baserunner z9 long throttle delay from stop.(Solved)

    Yes faster speed causes higher losses in the motor, as stated before..... It's sending a second phase current perpendicular to normal phase current so reduce field. It has to buck extra voltage for current but not much. Most of the effects of FW will be noticed in heating of the hub as Eddy...
  5. T

    Baserunner z9 long throttle delay from stop.(Solved)

    All you'd have to do for accurate fw is get the speeds for motor off grin put it in custom motor spot, keep all settings the same and slowly increase kv.
  6. T

    Baserunner z9 long throttle delay from stop.(Solved)

    Yeah we are saying the same thing. I said for simulating FW not for different winds. In my experience it's been the best thing to simulate fw. Yes when you change a motors kv through winding that's true but you are temporarily changing it through FW. So just bumping up kv to see how it would...
  7. T

    Baserunner z9 long throttle delay from stop.(Solved)

    Also field weakening does cause efficiency loss in motor as stated above but as mentioned that's where it's okay to run some as the sx2 is very efficient to begin with so a small hit isn't so bad. Over do it and it will heat up fast with even with no load.
  8. T

    Baserunner z9 long throttle delay from stop.(Solved)

    If you want to simulate FW click on show advanced under throttle slider to increase kv in increments. Even then though it doesn't 100% simulate it, more of an idea. Going from 7.9kv of standard wind to around 10kv of fast doesn't simulate FW. It simulates a fast wind motor. With FW your kv might...
  9. T

    Baserunner z9 long throttle delay from stop.(Solved)

    Also anything over 50 to 55 phase amps will start to damage clutch, shread gears and heat hub very fast. Fast wind could probably take more but idk about 90+ phase amps.
  10. T

    Baserunner z9 long throttle delay from stop.(Solved)

    Pretty much all outrunner are built the same way. The sx2 is much smaller compared to those motors but where it shines is it's peak efficiency. Most motors hope to be peaking at 80% and this motor if I remember correctly has 87% efficiency peaks so even though it's small and not sure...
  11. T

    Baserunner z9 long throttle delay from stop.(Solved)

    As far as my knowledge the only motors that have thermal rollback/temp modeling in the motor simulator are motors that they have actually put in the wind tunnel and tested. If you put a certain motor in the test and it says "not modeled" in the lower right where it would normally tell you how...
  12. T

    Baserunner z9 long throttle delay from stop.(Solved)

    Yes. I've ridden it for over 1k miles as stated above with no problems but for me the thermal rollback does kick in on longer rides from how I have it setup. With no field weakening or a lower amount and a more reasonable say 1200w max and you should be golden to run it for long commutes without...
  13. T

    Baserunner z9 long throttle delay from stop.(Solved)

    The speed at which you run it isn't really much of a factor but the load required to hold that speed or accelerate to it is. Motor efficiency generally always goes up as speed goes up. As you near no load speed your power drops due to back EMF from motor voltage being close to battery voltage so...
  14. T

    Baserunner z9 long throttle delay from stop.(Solved)

    I agree with all of the above. Phase current is always at play even at full speed I was just pointing out that the effects at different speed ranges. Like I said and you said yourself, "Low end torque is limited by phase amps, not battery amps. Higher battery current will help extend the torque...
  15. T

    Baserunner z9 long throttle delay from stop.(Solved)

    Yeah that's exactly what I said lol. You were saying that battery did nothing and that higher phase was better through the whole speed range when it wasn't but was close and only reason it was close was because it was a fast wind in large wheel so large phase amps are needed to run it properly...
  16. T

    Baserunner z9 long throttle delay from stop.(Solved)

    Also to be fair you did use fast wind motors in 26in wheels with one at 70/35 phase/battery and the other at 50/50. Of course the higher phase will perform drastically better in that winding motor in that size wheel. However in the real world with these motors anything at or past 60a of phase...
  17. T

    Baserunner z9 long throttle delay from stop.(Solved)

    Yeah I agree to an extent. The benefit from higher battery current is a very minimal increase in mid to high range acceleration but not much for a lot of battery juice and heating of the motor. I looked at the graph but used a standard wind instead for the 26in wheel size. At 20mph the high...
  18. T

    Baserunner z9 long throttle delay from stop.(Solved)

    Yeah it depends on the ramp rates you have in the CA/BR. The standard pass thru throttle mode controls torque rather than power so that's why it pulls more power for high speed and less for low speed off the line. It's why you can have the throttle set on cruise control at a consistent voltage...
  19. T

    Baserunner z9 long throttle delay from stop.(Solved)

    With a max of 1500w and no more than 5a of field weakening and you shouldn't have any problems with overheating. Of course it will depend on your use case and overall load on the motor. You can also reduce the phase current some which will greatly help with reducing heating but will reduce low...
  20. T

    Baserunner z9 long throttle delay from stop.(Solved)

    With the bike in the 1500w mode it gets up to 100°c after about 4 or 5 miles of full throttle riding but that's with almost 10a of field weakening. What I've found is that most of my heating is from field weakening pulling extra power to go faster, this making the losses higher. I run 9.5 a of...
  21. T

    Baserunner z9 long throttle delay from stop.(Solved)

    For instance I have my BR set to 55a phase and 40amp battery. However I rarely draw that full amount because in my CA I have 3 different presets. High, medium and low. High is full power which is 2000w, medium is at 1500w and low is 1000w. This way the controller can be set and left alone and...
  22. T

    Baserunner z9 long throttle delay from stop.(Solved)

    No it will work. If you go to the larger l10 plug it will not because that has its own wire for speed and it's own wire for temp rather than sharing speed and temp like the z9. The z9 to my understanding is the only one with a demux chip to do this. The BRZ9 can be turned all the way up to 55a...
  23. T

    Baserunner z9 long throttle delay from stop.(Solved)

    You'll be much lower though towards 25a tops on one battery though so unless you plan on doing a pack or parallel upgrade you won't see any benefit from the l10 except low end torque(phase amps). You need the power to push those amps (battery) otherwise it's potential isn't being used. I...
  24. T

    Baserunner z9 long throttle delay from stop.(Solved)

  25. T

    Baserunner z9 long throttle delay from stop.(Solved)

    It just depends on what you are looking for. If you are wanting a bike than can really take off and go with higher power and torque levels then yeah I'd say go for it but again then you would be in the same boat of stressing the battery. If you aren't worried about getting the most power and...
Back
Top