RPM settings - what happened to my engine?

Using the 182 Nav trainer,http://www.navfltsm.addr.com/aircraft.htmwith the excellent digital readouts, I can't seem to get revs to 2700rpm. At a steady cruise at ~5000ft, with "cleared" weather, max rpm is about 2500-2530rpm, at that point, cruise almost reaches 110kts.. (this agrees with the listed spec, but why can't I get to that top 200rpm??)temp is about standard as well - 41f at 5000 feet.Certainly on climb, RPM is way less than 2500 - not 2700 as per the instructions.Things I've tried: recalibrate controller displaying "raw" data (max 245 min 0) optimize mix with control-X sensitivites in-game are all "max" and null zone zero. remove joystick assignment and go to keyboard - full power.. same resultsThe aircraft config file says:max_rated_rpm=2700 //Max rated RPMmax_rated_hp=180 //Max rated HPWhat am I doing wrong??