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

75 psi of oil pressure "warm"

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Old Jul 19, 2007 | 10:20 PM
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Default 75 psi of oil pressure "warm"
Hey guys my car just had the motor built when I bought it. The guy had a milan high pressure oil pump put in it. It had 75 psi of oil pressure warm at about 2800 rpms going down the highway. I thought after I got done putting some miles on it it would come down. It still only has about 700 or 800 miles on it but it is still holding that much oil pressure and I was going to see what yall thought about it.

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Old Jul 19, 2007 | 10:33 PM
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would u rather have 75 or 20? iv never seen a car with 75lbs.. but i dont think thats a bad thing, your gauge might be faulty
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Old Jul 19, 2007 | 10:57 PM
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mine stay around 80 cold and 65 or so driving... never ever drops below 50+
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Old Jul 19, 2007 | 11:44 PM
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i think 75 is ok at 2800 rpms....
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Old Jul 20, 2007 | 12:34 AM
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what is the easiet way to find out if your gauge is faulty ?
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Old Jul 20, 2007 | 01:51 AM
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Mechanical oil pressure guage will do the trick. 60psi here cold and 50-55 warm using a mech OP guage in addition to the stk unit.
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Old Jul 20, 2007 | 04:04 AM
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yup that seems a lil high but its better than being too low. Seems that the gauges are off on many cars. According to my gauge i've had 0 oil pressure for the passed 2k miles
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Old Jul 20, 2007 | 05:43 AM
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the oil pressure guage in my truck (silverado 350) said 0psi and the guage dummy light came on so i thought it was just the guage. went a couple thousand miles... then POP went the engine... more specifically the 1 and 2 connecting rods.. haha.. lesson learned..

my camaro oil pressure runs pretty low once it warms up. id love it to run that high..
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Old Jul 20, 2007 | 06:50 AM
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mine is making 80 at 3000 rpms warm
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Old Jul 20, 2007 | 09:18 AM
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After recently installing a Melling 10 HV oil pump on my 151k engine after a blown head gasket, I now have just under 80 at cold idle and 35 to 50 at hot idle.
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Old Jul 20, 2007 | 09:49 AM
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Ok well I was just wanting to check to make sure it wasn't going to rob all the oil from the bottom end. Thanks for the info guys.
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Old Jul 20, 2007 | 11:34 AM
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sound once again how do you check if the gauge is bad and where is the sending unit on the LT1s ?
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Old Jul 20, 2007 | 11:40 AM
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20psi hot idle

40psi hot from 1500-6400rpm

60psi cold idle
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Old Jul 20, 2007 | 01:43 PM
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before mine got to starving from oil from the oil pump locking up after 15 miles of driving i held 70lbs easy. still waiting to get my motor back again.
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Old Jul 20, 2007 | 03:09 PM
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my car lost oil pressure at 115 MPH at the track im trying to get feed back on it and maybe some things to look at. any help ?
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