I am attaching a quote from an email from my buddy at work that has the Syclone just to clarify about the Stant T-stat and 160 T-stat usage.
"Careful with the 160 thermostat, although I'm running a new stock radiator and severe duty clutch fan with an aftermarket water pump (not a better setup like you have), the truck will eventually begin to run hotter than "normal". Especially after making two 1/4 mile passes. At some point the thermostat opens, and stays that way causing temps to slowly creep up. I ran into this with my S10 and "upgraded" the radiator and water pump, and even tried electric fans, then went back to a clutch fan. It turns out that "superstats" that Stant sells have a metering valve rather than just open and shut like OE thermostats. This for whatever reason causes unstable temps that creep up. I tried a 160, a 180, and now I went back to an OE 195 stat, and my temps actually dropped. Better yet they stay that way, even with AC running on high in traffic. I realize this wasn't on the Syclone, but, I have experienced the truck getting so hot that it pops and bangs. And when I opened the hood after that 2nd run, I had to step back cause of the heat. After that I changed my oil for good measure (went to a 10W40), and my plan is to put a 195 OE stat back in the truck. Craziest part is that the factory gauge never indicated that I was overheating, the needle was actually under 180! No steam, plenty of fluid in the reservoir, no leaks, just a stupid hot vehicle. Needless to say, like you, I don't trust it. I think Texas heat just sucks, and is very hard to deal with, especially on turbo'd vehicles. I'm not recommending you go with the 195, but I do recommend a thermostat that doesn't meter flow. Since you can control when your fans come on, you are better equipped to run a cooler stat."