Step one, determine if you have an overheating problem.
You have said nothing for me to believe that you have an over heating problem. It gets up to the middle of the factory gauge has no meaning. Buy a good mechanical gauge and collect real temperature data.
Confirm it, then solve it
A very valid comment
But we do not rely on gauges PERIOD!!! Thermocouples with a good digital temp meter will DEFINTIELY separate the facts and numbers. I have seen gauges regardless or quality or type be off by as much as 60 degrees, typically at the higher end of the scale. In all honesty the ching chong dime a dozen gauges are sometimes more accurate. Kudo's to
BSB67 for reading through the lines of this thread
