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And I thought a Pretzel with Mustard vape was weird LOL

What is the ohm rating of your coil? what is the rating of your battery? honestly, your post worries me. It's not that difficult to educate yourself on this subject. Your question reveals that you have more to learn and understand before you randomly start building coils and hope that some guy on the Internet a thousand miles away is going to give you assurance that you're ok. YOU should know you're ok because you understand how to safely build a coil. You shouldn't be building coils if you don't know what you're doing just because it's easy to do. You are risking fire or injury to yourself or others. Be smart. Know before you go. It's not worth the risk. You can go to somebody who knows and have them check it out you can inexpensively get the meter you need to determine yourself Read up a little on coil building. There is good info out there.

Not enough info to go on Are you using Kanthal, Nichrome, Titanium, flat, twisted, ... what? If using Kanthal... 8 wraps (full wraps) around a 2mm mandrel will be ~1.2 Ohms (which should never be fired at 40W. Even worse would be if the coil were wrapped on a 3mm mandrel (~1.7 Ohms). Wrapped on a 1mm mandrel would be 0.7-0.8 Ohms... still nothing I'd push 40W into!! Power is not everything.... and you must learn proper coil wrapping as well as Ohm's Law if you're going to build. But before you do anything... BUY A METER!

Start by setting your temperature limit to 450 degrees and your wattage or power to about 25 watts. Try out your vape. Adjust your temp limit first before changing your wattage. In TC, your wattage is less critical. If you seem to be hitting the temp limit too quickly, bump down the wattage a little. You will find a sweet spot somewhere in there between 430 degrees and 500 degrees maybe. The watts somewhere between 18w and 30w. Various things will affect it, the juice, chain vaping. You're just going to have to experiment and report back what is happening. Also, read the TC thread. Lots of good tips in there. "Let's Talk Temp Control"