Good dyno numbers. Those jive pretty closely to what I just made. We tuned to diminishing gains both in terms of boost and timing and landed at 18-19 psi on 93 octane with nothing else. Was seeing 90F (about a 20 degree delta) out of the intercooler on the dyno around there too. Your coolant temps are a lot hotter than I'm running on a Mishimoto KA radiator w/ ISR electric fans. Having a discussion about this very topic w/ a buddy of mine in Florida.
From the 1995 FSM;
Seems the OEM S14 electric fan kicks on at 203F in slow, with high coming on at 212. Also interesting to note, the OEM KA thermostat isn't fully open until 194F.
I'm running coolant temps in the low 180s with a 170F Gates thermostat. On the highway I'm creeping up to 190 but as soon as I come off of the highway it drops to 183-184ish pretty quickly. I just ordered my oil cooler setup and I'm in the process of boxing my radiator in fully, but after looking at the FSM I don't feel comfortable above 200F for safety margin. Just thought I'd add that in for conversation since you mentioned coolant temps in your last post.
I guess what I take away from the FSM is that they consider the OEM mechanical fan to be taking care of things up to 203F. above that the engine is getting hot, probably in city, low RPMs and from low air flow, so the electric fan kicks in to help. At 212 (boiling point for pure water) the fan kicks on high and engine is overheating. That's just my interpretation though. Planning to run SCCA/HPDE events in mine and the cooling system is a MAJOR point of interest for me.