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oil pressure question

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Old 05-26-2007, 10:19 PM
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StockD15b
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Default oil pressure question

what whould i be showing on my oil press guage at idle and cruising?
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Old 05-26-2007, 10:50 PM
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cliffyk
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Default RE: oil pressure question

If it's the OEM gauge then it should show a bit more than 1/2 scale unless the engine's blown--it's a dummy gauge that goes to that position as long as there's more than 6-8 psi of oil pressure...[/align][/align]If you've got a real gauge then 10 psi for each 1k rpm is a "rule-of-thumb"...[/align]
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Old 05-26-2007, 11:34 PM
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StockD15b
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Default RE: oil pressure question

ORIGINAL: cliffyk

If it's the OEM gauge then it should show a bit more than 1/2 scale unless the engine's blown--it's a dummy gauge that goes to that position as long as there's more than 6-8 psi of oil pressure...[/align][/align]If you've got a real gauge then 10 psi for each 1k rpm is a "rule-of-thumb"...[/align]
so at 2500rpm i should be seeing 25000 psi??? its an autometer n all but it only goes to 100psi lol
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Old 05-27-2007, 01:02 AM
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RipTide7
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Default RE: oil pressure question

ORIGINAL: StockD15b

ORIGINAL: cliffyk

If it's the OEM gauge then it should show a bit more than 1/2 scale unless the engine's blown--it's a dummy gauge that goes to that position as long as there's more than 6-8 psi of oil pressure...[/align][/align]If you've got a real gauge then 10 psi for each 1k rpm is a "rule-of-thumb"...[/align]
so at 2500rpm i should be seeing 25000 psi??? its an autometer n all but it only goes to 100psi lol
At 2500rpm u should see 25psi about
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Old 05-27-2007, 01:13 AM
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redass02gt
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Default RE: oil pressure question

lol

10 psi for 1000 rpms..
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Old 05-27-2007, 05:40 AM
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StockD15b
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Default RE: oil pressure question

ORIGINAL: redass02gt

lol

10 psi for 1000 rpms..
oops. i was multiplyin the 10 per RPM.

so at 2500rpm 75psi to high?
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Old 05-27-2007, 07:03 AM
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cliffyk
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Default RE: oil pressure question

I just checked, the factory spec is 20 to 45 psi @ 1500 rpm (I said the 10 psi / 1k rpm was arule-of-thumb)--I can't find a spec for the oil pump relief valve, however 75 psi at 2500 may be normal.[/align][/align]Does it rise to more than 75 at higher revs or level off?Iis that with a hot engine?[/align]
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Old 05-27-2007, 09:13 PM
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StockD15b
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Default RE: oil pressure question

ORIGINAL: cliffyk

I just checked, the factory spec is 20 to 45 psi @ 1500 rpm (I said the 10 psi / 1k rpm was arule-of-thumb)--I can't find a spec for the oil pump relief valve, however 75 psi at 2500 may be normal.[/align][/align]Does it rise to more than 75 at higher revs or level off?Iis that with a hot engine?[/align]
at cold start up its at 75 at a idle. after it warms up drops to 25 at idle. it usually stays at or under 75, highest its gone its 80 under hard acceleration.
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Old 05-27-2007, 09:26 PM
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code3GT
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Default RE: oil pressure question

ORIGINAL: StockD15b

ORIGINAL: cliffyk

I just checked, the factory spec is 20 to 45 psi @ 1500 rpm (I said the 10 psi / 1k rpm was arule-of-thumb)--I can't find a spec for the oil pump relief valve, however 75 psi at 2500 may be normal.[/align][/align]Does it rise to more than 75 at higher revs or level off?Iis that with a hot engine?[/align]
at cold start up its at 75 at a idle. after it warms up drops to 25 at idle. it usually stays at or under 75, highest its gone its 80 under hard acceleration.
That's about right. Do you have a high volume pump?
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Old 05-27-2007, 09:37 PM
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cliffyk
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Default RE: oil pressure question

Sounds to me like you've got a nice tight engine...
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