Quote:
Originally Posted by Joesurf79
My oil pressure gauge reads 80-90psi cold at idle with 0W-20 in it. After a session on track, that may only be 30 psi at idle when the oil temp is in the 210-220 F range.
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Right. So is 80-90 not enough pressure for a cold start? Shimming the bypass stiffer will only increase the maximum pressure the pump will produce. It won't effect hot pressure whether it's shimmed or not.