oil pressure

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Nov 7, 2006 | 11:14 PM

Revelation Z28

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From: Rialto CA

oil pressure

when im cruising at 3000rpm before shifting im at 40-42psi.

cold idle: 50-60psi
hot idle: 20-28psi
idle is both 1,000rpm hot or cold (tach shows)

when driving: 2000-4000rpm is 45-50psi above 4000rpm to 6000rpm is 50psi i think or 60.

im running valvoline high mileage 20W50 oil.

i dont think my pump is out. do i need a new sending gauge, to correct anything? im getting oil up to the heads when i took my covers off. i get no ticking/knock. im pretty sure back in march when i bought the car the hot idle psi was around 40 or 30.

Nov 7, 2006 | 11:18 PM

UnitZ28

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you're trippin and you have high miles on the car

Nov 7, 2006 | 11:37 PM

1994Z28Lt1

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From: Elko MN

i have never seen a stock lt1 have a hot idle above 30 psi your pressure is about right on par with what my lt1 runs for pressure i wouldn't worry about it

Nov 8, 2006 | 12:19 AM

Formula350

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From: Decatur, TN (N-W of Athens)

Except he's running 20w50... It should be higher I'd think. Don't get worried about my inquiry, that's just what I'm assuming.

Nov 8, 2006 | 12:25 AM

siniSSter

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From: Quarter Mile Performance

Your alright, LT1's are known for low oil pressure. Mine is at 25 @ hot idle in 95 degree weather. In the LT1 manual specs say 6psi for every 1k rpm....or 10 psi just to be on the safe side.

Nov 8, 2006 | 06:22 AM

bowtieman_racin

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oil pressure

My new 383 has the exact oil pressure as what you have and I know the clearances are right everythings new. I also have the same oil pressure whether I run 10w40 or 20w50 doesn't change enough to notice at least.