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  1. R

    Better than the Stark Varg? 76v 90Ah 35kw Dirtbike Build

    How comes nobody get overheating from their controller/motor? I have a Qs180 and cl1000 and the controller overheat everytime I ride the bike and the motor get close too. Maybe the 180 is a bad motor in efficiency compared to the 138? Also for the battery Ken bao from wellgo is very nice always...
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    Better than the Stark Varg? 76v 90Ah 35kw Dirtbike Build

    Yes even at the continuous current the heat will build up. I have a. 26s14p and at 300 amp there is heat coming from the pack. Mine is cooled via cooling fin and thermal pads and the case becomes hot. The motor will heat up as well but it is probably not a problem. The controller is. I got a...
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    Better than the Stark Varg? 76v 90Ah 35kw Dirtbike Build

    Nice project but the power level you are trying to acheive will not happen without serious overheating. Needs water cooling for any serious riding. Also that 45 amp peak rating comes with lot of voltage sag and heat buildup. You also need to cool the battery with battery case.
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    crf450r 45kw race bike build

    Well I am not looking for help since nobody almost nobody her use their bike for motocross racing so they do not encounter the limitations I get. I am just documenting the project and if someone want to build one will see what are the real performance of a diy electric dirt bike. For trail...
  5. R

    crf450r 45kw race bike build

    So today I tried to do some log as requested. Only 2 worked as it seems like vesctool would not keep connected to the controller. Did a top speed with my phone gps wich is 85 km/h. This is too slow as a 250 top at around 120km/h. I will try to explain better the piwer of the bike: When...
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    crf450r 45kw race bike build

    Back on this project after a dislocated shoulder and house renovation! I tried it on a real track around mid august and the bike was very bad. On a track it felt slower than a 125. I lost traction on the face of a jump and hurt my shoulder again. Yesterday I finally tried the bike again this...
  7. R

    Project FT00 - A compact 125V 30kW motor with 6.77 planet output

    Amazing project!
  8. R

    crf450r 45kw race bike build

    I did not test it. This rpm is the spec for the qs180 on their spec sheet
  9. R

    crf450r 45kw race bike build

    Maybe I was not that clear on my settings. As a French speaker sometimes it is hard to explain things in English. The cut off start is at 65 the cutoff end is at 85. Hackey told me I could set the cutoff start to 70. I feel when I get to 65 as the bike becomes a lot slower then as it get hotter...
  10. R

    crf450r 45kw race bike build

    It is the recommendation from 3shul. I asked hackey and he said I can up the limit to 70 degree. It is at 65 riight now
  11. R

    crf450r 45kw race bike build

    Going to try with dual fan on the controller inspired by graphics card cooling! Also get a 52 sprocket for the rear hopefully see some improvement.
  12. R

    crf450r 45kw race bike build

    I said earlier the gear ratio was 6.18:1 but just realized that I got a 48 sprocket on the rear and that makes it 5.7:1. Maybe my gearing is too high
  13. R

    crf450r 45kw race bike build

    I changed that it is mounted sideway in the air box with heatsink facing the number plate now.
  14. R

    crf450r 45kw race bike build

    So I did another test with a 230cfm 2amp fan. The overheating happened but like a minute later. The overheating is set at 65c. The fan was on from the beginning. So next I think I will need to play with the gearing. Maybe I am asking too much from the set up. I tried to do a log but it did not...
  15. R

    crf450r 45kw race bike build

    Today I went to a sand pit to do some testing. I see a power output of 39kw on Vesc tool. But the problem is that the controller overheat in less than 2 minutes. I lowered the phase amp to 600 and 300 batt and it still overheat. I mounted a pc fan to the controller and still the same thing...
  16. R

    crf450r 45kw race bike build

    I have 6.18-1 gear ratio. I think with tuning I should get more speed. I think something was getting hot because after several acceleration it seemed to get slower then after taking it easy it seemed to regain power. Also the cooling on the battery seems to be working since the side plate got warm!
  17. R

    crf450r 45kw race bike build

    Si Ennoid repaired the slave board and now it works. Only problems Is that it will not charge because the bums need to see voltage at input and the charger need to see voltage at the output so non of them turn on. I charged without the bms and did a test ride. It is fast down low with lots of...
  18. R

    Yamaha YZ450F

    If you want to read more about the Ennoid you need to look on the many electric skate and one wheels forum. I have used the master lv and the master xlite. Also the xlite need to have amp going through it to stay on and keep the charge Port on. If there is no voltage/amp it will shut down the...
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    Yamaha YZ450F

    I would suggest to stay away from Ennoid. So far I have had: Master bms bricked during first setup Master bms fried during precharge Fried 2 slave board. No I finally have a master and slave that works but it will not allow charging at all. Using master xlite
  20. R

    crf450r 45kw race bike build

    Yes the wiring is good it worked with the previous bms. I took the slave out and they seems defective. One has the led always on and the other the led flash between high and low intensity
  21. R

    crf450r 45kw race bike build

    Yes I had asked him and he tested it with my master xlite before sending it and it worked. I set him an email and he said maybe try swapping the polarity on the isospi. I will try. Because it seems like the bms do not see the slave board since every cells are at 6.53v
  22. R

    crf450r 45kw race bike build

    no I changed to the xlite master. I guesse when the LV burned it problably burn the balance board too
  23. R

    crf450r 45kw race bike build

    Yes with bms test it fail every test. What settings did you find that can throw off the voltage reading? I think I set it up right or at least I did what ennoid told me to do.
  24. R

    crf450r 45kw race bike build

    Update on this bike build. After over 2 months of now doing anything I started working on it again. Got hackey to tune the cl1000 and it works fine so I tought I will finally be able to finish the bike. So I tried the new bms I got from ennoid and guesse what IT DOES NOT WORKS! again. It reads 170v
  25. R

    Yamaha YZ250F

    hi, jbjork did you make a cover to protect the controller from water/mud? I just received my cl1000 and I will need to mount it where the radiator normally mounted. But it des not looks to be waterproof.
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