bypassing the cooler won't make any difference,it's a low pressure bleed off system anyway,all it'll do is just return to the sump faster.
measure what the oil pump is actually putting out with an accurate gauge. the std dash gauge is a guide more than a measuring instrument.
around 30psi at idle and 80 or so at higher rpm is a normal range. if it goes above 100psi,you have a siezed pressure relief valve in the pump that you'll want to free up before you pop seals or damage bearings..
Justin...
