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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Oil pressure problem...

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Old Feb 4, 2008 | 08:50 PM
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Default Oil pressure problem...
Whats the oil pressure supposed to be at? My friend has an LT1 with 115k miles and his oil pressure is at about 17 at idle (hot) and goes up to about 35 (hot) while cruising, is this too low? He's afraid its too low and wants to sell it to get a 05-06 GTO with a 6 speed...can any of you guys help? Just tryin to save another LT1 owner from switching. Thanks!
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Old Feb 4, 2008 | 08:55 PM
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Originally Posted by green95vert
Whats the oil pressure supposed to be at? My friend has an LT1 with 115k miles and his oil pressure is at about 17 at idle (hot) and goes up to about 35 (hot) while cruising, is this too low? He's afraid its too low and wants to sell it to get a 05-06 GTO with a 6 speed...can any of you guys help? Just tryin to save another LT1 owner from switching. Thanks!
Sounds right. My car had 20 at idle and 38 while cruising.
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Old Feb 4, 2008 | 09:04 PM
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My factory guage reads very similar, but the new mechanical guage shows almost 50 at a cold idle.
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Old Feb 4, 2008 | 09:09 PM
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17 at idle is plenty. Especially on the stock guage which is notoriously bad for reading low.
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Old Feb 4, 2008 | 09:10 PM
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I just changed my oil with GC and I get close to 30 idle, nearly 60 cruising.
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Old Feb 4, 2008 | 09:31 PM
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Would a new sending unit maybe fix the gauge problem? Thanks for the replies!
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Old Feb 4, 2008 | 09:51 PM
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Sounds good when it gets near 5 let us know.
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Old Feb 4, 2008 | 10:09 PM
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whoo hoo been running 3-5 sometime's check gauges light comes on hot idle still running strong after 12k wot it shoots back up to about 50psi cruzing is 22-26 psi
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Old Feb 4, 2008 | 10:53 PM
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Originally Posted by letsrun97z
whoo hoo been running 3-5 sometime's check gauges light comes on hot idle still running strong after 12k wot it shoots back up to about 50psi cruzing is 22-26 psi
my car has the same exact oil pressure readings but it runs good!
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Old Feb 5, 2008 | 12:08 AM
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from what i have read as long as you have 10 lbs of pressure for every 1k rpm you are golden
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Old Feb 5, 2008 | 01:09 AM
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Just pulled a lt1 two weeks ago. Had 5 on hot idle and around 60 wot. Stock lt1. Crank bearings ate something. this thing ran its *** off.
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Old Feb 5, 2008 | 03:27 AM
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sounds fine to me..
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