How do you guys go about cleaning your rcs? Im mainly wondering what is the best way to clean an engine, but any tips would be useful.

cover it in WD-40, let is sit for 5 mins, then spray off with an air compressor, engine will sparkle in the dark.

+1 also to clean the car take everything off (motor and electronics) nd put it in the dish washer take the compressor spray it dry then WD-40 all the places where rust might come. Good luck!

I use to do the dish washer trick, boy did the wife get pissed when she seen it in there. Now I just remove engine pipe and radio tray. Hang it from a tree and hit it with simple green, let it sit for 10 min then hit it with a garden hose, air dry rather a compressor or wind then wd 40 it down.
The pipe/engine is done with nitro cleaner. Cap off the carb and exhaust port and give it a few shots and its done.