Heat during speed runs was appreciable, so I decided to install this type of twin fan heat sink.
The fans have WCF plates to help with both looks and longevity.
Driving like I stole it, without a break, the temperatures peaked at 162°F after 90% of a 4500 6S pack running the sticky road tyres and mostly full throttle runs. Following a 2 minute break, the fans cooled the motor down to 90°F, so the setup definitely helps dissipate the heat over a shorter timescale and reduces the peak temperature. Win win.
The Team Corally motor is actually in excess of the recommended KV rating for 6S use, as stated in Corally's own ESC manual! So I think cooling is a sensible way of mitigating this 'slight oversight'.
Following a slight issue with the original fans, I used these ones instead. Note: the covers are from Surpass hobby, but the Surpass hobby motors and y-lead were no good - one of the motors was DOA and the y-lead was difficult to see the polarity.
Next up, the servo saver spring.
Set like this, the steering gets sloppy.
Set like this, the steering is positive, but there is virtually no saving action due to insufficient gaps between the coil...
Access to the steering/servo saver isn't great - you either take it apart like I did - 16 screws - or poke a screwdriver on to the knurled thumb screw through the hole in the chassis, turning the steering one way to tighten - the other to loosen. My issue with the latter is that it ruins the thumbscrew, damages the anodising and you can't easily see what compression is on the spring.
It's pretty obvious these servo saver springs need to have a higher rate - they're too soft. Clamping them right up like this isn't ideal, but given the choice, I'd sooner have some steering at 60mph.
Outside diameter = 18mm
Inside diameter = 14.4mm
Spring length = 14.8mm
Spring wire = 1.8mm
Can anyone suggest a beefier spring with a heavier guage wire?
The need for speed
GSM020
Dual locked between rear body posts. I can literally pick the truck up by it!
Dusty motors shroud goes over the top of that.