CHT temps SR22T

In the G6 SR22T [ 770 TT ] the last few flights I cannot control CHT # 1 on climb full power full rich. Once it hits 370 degrees it just shoots up and up and I have to stop the climb which makes ATC around London v concerned ! I keep fuel flow in the amber caution range at 40 usg / hr and MP at least 36.5 and still uncontrolled. Oddly since my fuel pump was changed 2 years ago - low boost ON now reduces fuel flow (!) and so in an attempt to cool cylinders I have to turn electric boost off to get enough fuel . I know GAMI say that the rear cylinders run lean - but why recently has my cyl #1 been such a problem . Once leaned in the cruise it’s nice and cool.

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If you post up the engine data it can be determined if the indication system is correct.

Have you tried flying out at 130-140 KIAS to get more airflow? Assume you are climbing out at 120 KIAS?

FF is good at 40+

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