Oil pressure dropping under high RPM / load ?
#1
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I noticed once i get over 4,000 RPM and you are foot the floor in 2nd gear, the oil pressure goes down to 25lbs and jumps up to 40 in about 2 seconds. What could be the cause of this? I have a canton pan, and my builder told me to run 7 qts. could the gauge be wrong? It really makes me sick seeing that, especially how i just spent 10k on a new motor..
#4
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i have this same problem but since my oil pressure never goes low enough to not lubricate the engine, ive not been extremely concerned with it. i have a canton road race pan with a built in windage tray though. so would it still be doing this?
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#9
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well seeing as how my pickup fell off and thats why i changed the pan/pump, i honestly cant recall if i had this problem with the stock pan. i didnt realize the canton pans had this problem. will definately look into this further. glad i read this thread.
#10
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#11
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I noticed once i get over 4,000 RPM and you are foot the floor in 2nd gear, the oil pressure goes down to 25lbs and jumps up to 40 in about 2 seconds. What could be the cause of this? I have a canton pan, and my builder told me to run 7 qts. could the gauge be wrong? It really makes me sick seeing that, especially how i just spent 10k on a new motor..
#16
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My car does the same thing, even after it was rebuilt. It always seems to drop right at the 4000rpm mark and shoot back up. I think it is due to windage to be honest. At first I thought it might have been the bearings, but it continued after I replaced everything. It hasn't hurt me yet.
#20
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2K-4K = 50#
4.1K-5.5K = 35#
5.6K -6.5K = 50#
Most stupid question ever cause maybe I am not capable of reading my dipstick.
![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
This is what my dipstick markings looks like.
ADD●xx●xx●xx●◄──OPERATING RANGE●
The level on my dipstick is here, should it be further to the right:
ADD●xx●xx●xx●◄──OPERATING RANGE●
_____________/\
Example A
Is this condidered absolute full:
ADD●xx●xx●xx●◄──OPERATING RANGE●
_______________________________/\
Example B
Is this condidered absolute full:
ADD●xx●xx●xx●◄──OPERATING RANGE●
____________/\
Dont rip me to bad guys.
![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
Last edited by wrd1972; 03-27-2010 at 08:55 PM.