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

Problems after GM847 install

Old Aug 11, 2008 | 08:43 PM
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From: Jackstandican
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Maybe I'm reading wrong, but that oil pressure doesn't look bad. If your rpm is truly 900 rpm you still have 17 to 19psi at idle which is fine. Rule of thumb is 10psi per 1000rpm. What is your pressure like at cruising speeds?
And no bearings do not necessarily make noise when they fail.
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Old Aug 11, 2008 | 08:52 PM
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Originally Posted by LT1forever
Eh dont worry, there are alot of other LT1 owners who have spun a bearing at one time or another. It just gave me an exscuse to get a 383!
ya i got the excuse but now i need the cash LOL!!! actually if was to do anything it would be a fully forged 355
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Old Aug 12, 2008 | 12:08 AM
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From: Jackstandican
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Originally Posted by MadMike 97 Z28
and it went to about 15 but i didn't drive the car just let it idle in the garage.
I'm a bit confused here. You claim the lowest oil pressure you could get was between 17 and 19psi. That quarter hash mark on the oil pressure gauge is 20psi.
So what is your pressure at when cruising?
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Old Aug 12, 2008 | 12:22 AM
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what he is saying is that he just let it idle to get that picture... meaning his oil temp wasnt as high as it would be as if he had driven it, then let it idle

I had my car out tonight and I paid attention to my gauge. Even at 600 RPM hot I am holding just barely under the first mark. I am glad I changed that oil pump spring.
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Old Aug 12, 2008 | 11:44 PM
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Originally Posted by SS RRR
I'm a bit confused here. You claim the lowest oil pressure you could get was between 17 and 19psi. That quarter hash mark on the oil pressure gauge is 20psi.
So what is your pressure at when cruising?
Originally Posted by JoeliusZ28
what he is saying is that he just let it idle to get that picture... meaning his oil temp wasnt as high as it would be as if he had driven it, then let it idle
yep. what he said.
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