Been playing with this thing for almost a week now and a few things have me wondering..

I get the STFT, it's the ECU's response the O2 sensor feedback, adding and pulling fuel to maintain stoich mixture. It seems to be as expected, it hovers around zero, going back and forth +/- 5% (usually well under that). But my long term fuel trim hovers around +10-14, and I've seen it as high as 16. I have no idea what this is telling me, or whether this is an expected value.

Also I'm getting loads more KR than I would have ever expected on a 3.5" pulley, so I'm driving like a grandpa until I get it under control. It will still read 0-3* at times under partial throttle (< 25%) around 0 vacuum or slight boost and I have no idea why. Sometimes it stair steps, like the knock keeps coming back after the decay.

My intake temps are higher than what I'd expect, they're usually around 120-130 in hot afternoon driving. In the morning it's right around ambient temperature.

Also, despite having a 180* t-stat, my coolant temp still hovers around 195* in the heat, even on the highway. It will stay at 180-185 in the morning when it's a lot cooler out. I've heard some suggest drilling a hole in the thermostat which I've never done. What does this accomplish? I'm thinking of moving to a 160* t-stat for summer driving, it gets hotter than a mofo here.

Transmission fluid temp stays right in line with coolant temp, takes a good 20 minutes to warm up though. Commanded AFR is always 14.7 except at startup, it's usually around 10.5:1 until it goes into closed-loop (takes about a minute).

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Inferno Red 2009 Dodge Caliber SRT-4 125k