Joey Mack Posted January 22 Share Posted January 22 either oil pump will do good. I have used both.. however, the last PAI oil pump I used ran about 7PSI less than Mack's. This is based on comparing several engine builds.. 70+ PSI on a fresh build with a Mack pump is common, 60+ PSI is also good, but .... on the low side the PAI pump showed around 32PSI at low idle. still not bad... JoeH's CAC tester is decent and easy to make.. just be sure to tighten the clamps really tight. The caps will shoot out if not tight.. Quote Link to comment Share on other sites More sharing options...
fjh Posted January 23 Share Posted January 23 16 hours ago, Joey Mack said: JoeH's CAC tester is decent and easy to make.. just be sure to tighten the clamps really tight. The caps will shoot out if not tight.. Like A bullet! 1 Quote Link to comment Share on other sites More sharing options...
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