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Arrow III Turbo Oil Temps

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Sirtexlot

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I have an Arrow III Turbo with Merlyn, Surefly, and no Intercooler. What oil temps are you seeing? I never get above 175 and typically hover around 165 in cruise at 8k and 70%. Vernatherm opens at 170 according to book and that could explain this, but even with two winterization plates, I can't get it to get hotter, regardless of OAT.

Thoughts?
 

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