Hi Prof hope U R fine! In this period I'm running my King Cab at my local track the car is a pleasure to drive but i'm experiencing some heat problem on the motor that goes up to 89,2°C! The pnion is set correctly and not too tight on the 77 gear and the transmission turn free. I run a Sport Tuned motor with a 16T pinion (18T would be better but makes the motor even hotter...) on standard KC transmission not TTC, 7,4 LiPo battery and a nosram esc. A friend of mine has a Monster Racer same configuration and he also has the same problem. Have you experienced the same problem on KC? There is a way to fix it? Heat sink has very little space to be placed.
I take advantage of this to ask you also how low in turns with motors had you been able to go with the stock transmission considering the "weak" diff (even if packed correctly)?
Sorry for this articulated and long question and thanks for your time. :o)
Bye
WWD
The wise one answers:
I'm very well, thanks for asking! I found the stock diff in the King Cab/Monster Racer not much good for anything other that silver can or sport tuned. I run the Monster Racer in the sand dunes with a locked diff which is fine for non-racing and it will take almost any motor. I personally run it with a 19T Orion element V2 and it flies! Some people have installed Avante diffs with some success. I haven't raced the Monster Racer but I know from my touring car days that it places a higher demand on the motor as it rarely running at full speed for long and is normally under load to accelerate between corners. We used to put the motor part of the car in a cooling booth between races. These normally consisted of an icecream tub with a PC cooling fan installed running from 12 volts. Sit this over the gearbox if you can and it will cool it down. While on the move it's a little harder but i would be tempted to try and make room for a motor heatsink, ideally one with a fan in there. If you remove the motor guard and/or the rear bumper it should fit.You're right with the gearing you're using, you have to dramatically gear down compared to the Astute because of the larger truck tyres. Goor luck!
