I have a build in my big baby an on my reuleaux -rx300. An the ohms show 0.40. Is this ok an what is the preferred watts for this?
wattage is going to depend on what and how much wire was used.. I am currently vaping a 26awg SS coil in an Avocado 22 at
15watts. Do the same .4ohm on a clapton or fused clapton or fancy multi cored multi wrapped thing you could be looking at needing 200watts.
.4ohm on a mech at 100% efficiency will give 36 to 44 watts, consider voltage drop and sag probably 35watts tops less for a big fancy coil.
Without knowing the wire you are going to use.. there is no way toanswer your question... Try modling some build with Steam-engine.org