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Old 08-28-2009, 07:59 PM
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Cobra4B Cobra4B is offline
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Re: Bad day on the dyno!

That is very high oil pressure.. what the car up to temp and still showing 70 psi? I have a high volume LS4 oil pump in my car and get 40 PSI at idle w/ a M1 filter and 49 w/ a K&N w/ 5w40 amsoil when hot. The K&N bumps idle pressure as it's less restrictive than the M1 media.

In 2001 all LSXs got the LS6 oil pump. A stock car w/ 5w30 hot will make 29-30 psi at idle. A pre 2001 LS1 makes 25-27 psi at hot idle.

Did you touch the oil pump? My car makes mid 80s WOT when hot, but w/ a stock oil pump it should be mid 60's WOT hot and 50ish WOT super hot (270ish oil temp) on track.

Good luck.
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