Hello everyone! This is my first post, but I have been snooping around for several weeks gathering info for my build. My 9 year old son and I recently modded his Razor MX500 and we got the build bug! Now we need to build something for me. I picked up a 96 yz250. I plan to put a QS 138 70h v3 motor in it and build a 20s8p, or maybe 10p, depending on space, out of Molicel 21700 p42a cells.
The one thing I am having trouble narrowing down is the controller. The guys at QS are suggesting the Votol EM200. I asked if they could provide the EM260 and they said “it is not ready for market.” I told him I have seen it used in other builds and for sale on other sites and he just replied that it needs hardware and software updates. I saw another recent CRF build where the guy used a BAC8000, which seems like a good option. To be honest, my head is spinning. If anyone has a suggestion, I would be all ears. I want to get as much out of the motor as possible, while still being safe and not killing it.
Thanks in advance for any input and all the help so far!
The one thing I am having trouble narrowing down is the controller. The guys at QS are suggesting the Votol EM200. I asked if they could provide the EM260 and they said “it is not ready for market.” I told him I have seen it used in other builds and for sale on other sites and he just replied that it needs hardware and software updates. I saw another recent CRF build where the guy used a BAC8000, which seems like a good option. To be honest, my head is spinning. If anyone has a suggestion, I would be all ears. I want to get as much out of the motor as possible, while still being safe and not killing it.
Thanks in advance for any input and all the help so far!