Paul wrote:

I flew the SQ2000 today. The engine is running great, now that I have a seperate water temp sender for the ECU and another for the engine monitor. The outside air temp was 80 degrees, and I am very
disappointed with my coolant temps. The water temp hit 205 during the climb.  Temps slowly came back down to 190 once I was in level flight, and dropped to 170 on short final. Very
disappointing. (oil temps were fine).  I am going to seal all the gaps around the radiator first, and see if that helps.  I am concerned that the new ram air scoop I made to bring in cool air to the
throttlebody might be pressurizing the rear of the cowling, and inhibiting the induction of air through the radiator. I will try sealing around the radiator first. If that fails to bring the temps
down, I will try removing the ram air scoop and installing a NACA scoop with a hose to bring air directly to the throttlebody, and not dump it into the low pressure area of the cowling.  If that
fails, I think I will take up fishing or golf.
     Paul Conner, 13b powered SQ2000 in Mobile, AL

 
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