I had heard concerns that the radio box on the 808 was getting some RX units too hot. I just recently switched radios and did not really want to take a chance on a thermal shut down.
I put a peice of coffee cup foam between the chassis and the bottom of the box to protect against conductive heat.
I used foil tape on the engine side of the box as well as under the elevated radio/switch side to protect against convective heat.
After running an entire fuel bottle with engine temps running around 260F, the box came in with an internal temp of 95F. Outside temp was 91F and very humid.
To make the foam work right I had to glue 3 - 3mm shims to the holes of the box. A little CA was all I used and it seems to have worked perfect.
Now I want to mill the bottom of my box and shim it off the chassis to minimize non-contact heat transfer. I will still use foil tape to see if I can keep the box the same temp.
I'll keep you guys up on what I find.
Hope this helps,
TEX
