Original Kyosho Ultima and Hot Batteries
Got a question for anybody that has dealt with the "old" cars. I dug out my Kyosho Ultima (yep, built in the 80's), pulled it apart and rebuilt it using new shock oil, diff grease, etc. I installed a Speedworks Super Speedway Stock Motor (made by Trinity) that I had from "way back when". The thing runs great, but the new NiMH packs I'm using get incredibly hot when running them, and they only last a fraction of the length of time that my buddy gets with the same packs. He is running a RC10B4.2 with DTX 3900 motor brushless setup. I can keep up with him while the batteries are fresh, but they just don't last long.
Is this the difference between the "old" brushed technology and the new brushless, or is there something else going on?
I am using a Futaba MC111B controller in my Kyosho. Should I just suck it up and get a new motor and esc?
I am also seriously considering getting a used RC10B4.2 or Kyosho RB5 and outfitting it with new electronics. Would this be an even better idea?
Any help and/or advice would be appreciated.
NCDaveD