I agree with you and I don't. Maybe over the whole scope of things, Flux core is cooler per material/thickness applied to. I was speaking in reference to quarter panels not the whole generic basics of FCAW welding.
FCAW in not recommended for welding materials 18-20 gauge or thinner. Look it up at Miller, Lincoln, American Welding Society or wherever you want. Taking Flux Core to quarters is like bringing a battleship for bird hunting. There is too much punch (heat!). Also with a larger Diameter wire, it is borderline for precision welding on thinner materials. And with Flux Core you will have slag, more spatter, more porosity. Plus to top it off, it is more difficult to create a sufficent weld (Gun Angle, wire speed, knob settings, Pass movement are critical).
Have you ever FCAW quarters on? I can't even imagine. I've seen floor pans severed beyond repair from it...real ugly. Flux core was never in our train of thought at the body shop as far as body panels. I tell you what, go and ask some other body man to weld on some quarters with Flux Core and see what he tells ya. As far as the Viper goes, yes I can believe that considering they are welding on the frame. If they are in fact welding with Flux core on sheetmetal, I'm sure it's a highly engineered process along with highly engineered equipment. Not Budget Lincoln welders from Home Depot
I'm not one to argue, but I honestly think you took a look at my statement the wrong way and I don't want to see some JoeBagofdonuts to read this thread thinking "I'm gonna go buy flux core welder to weld on my quarters because it runs cooler and it sure is cheaper off the get go." They will be trashing a set of quarters and they are going to be pretty pissed! Might as well tell them to use a stick welder.
So, I'm not mad you "pooped" on my info because you didn't interpret it the right way to begin with.