Running 10w-30 - Whats your Pressures?
09-16-2009, 09:12 AM
#1
Terminal Vette Addict
Thread Starter
Running 10w-30 - Whats your Pressures?
Running 10w-30 - Whats your Pressures?
I recently made the bump to Redline 10/30 oil instead of the 5/30 to see how the car ran on yesterday's oil change.
I noticed, obviously, different pressures.
In the 5k RPM range when the oil is hot (over 200) the pressures will be in the mid 50's to about 56.
Is this what others are getting in a stock motor LS1?
Any concerns when the pressure gets too high?
I was running the RP 5/30 before and it was just getting too thin when my temps hit the 230 range on oil.
09-16-2009, 10:48 AM
#4
Terminal Vette Addict
Thread Starter
im definetly running higher Oil Pressure on the Redline 10/30 at high RPM than I did on the 5/30 mobile 1 / royal purple.
Havent been on the track yet to see temps over 205F yet.
Will say though that once the idle gets going, warm idle is very quiet and sedate now with pressures about 32 - 35.
Havent been on the track yet to see temps over 205F yet.
Will say though that once the idle gets going, warm idle is very quiet and sedate now with pressures about 32 - 35.
09-16-2009, 11:44 AM
#5
Le Mans Master
Back in '04 I installed an external oil cooler and did some testing. Here's what I recorded at that time, bone-stock LS-1:
Here's another test I did tonight. Got the oil temp up to 178 degrees, then recorded the oil pressure vs. rpm. Let the oil pressure stabilize for about 5 seconds, then recorded the value.
RPM: 1000, Oil Pressure, 31
RPM: 2000, Oil Pressure, 41
RPM: 3000, Oil Pressure, 49
RPM: 4000, Oil Pressure, 50
RPM: 5000, Oil Pressure, 55
That's 20 degrees below what you're looking at, but viscosity is fairly linear, so bottom line is I think your oil pressure is in the normal range.
One thing that I've definitely experience, though, is that the Wix oil filters have less restriction than just about any other oil filter I've tried, and oil analysis has shown the filtration to be fine. I've measured about a 5-8 psi pressure increase with those filters, measured over the AC Delco PF-46.
HTH, and have a good one,
Mike
Here's another test I did tonight. Got the oil temp up to 178 degrees, then recorded the oil pressure vs. rpm. Let the oil pressure stabilize for about 5 seconds, then recorded the value.
RPM: 1000, Oil Pressure, 31
RPM: 2000, Oil Pressure, 41
RPM: 3000, Oil Pressure, 49
RPM: 4000, Oil Pressure, 50
RPM: 5000, Oil Pressure, 55
That's 20 degrees below what you're looking at, but viscosity is fairly linear, so bottom line is I think your oil pressure is in the normal range.
One thing that I've definitely experience, though, is that the Wix oil filters have less restriction than just about any other oil filter I've tried, and oil analysis has shown the filtration to be fine. I've measured about a 5-8 psi pressure increase with those filters, measured over the AC Delco PF-46.
HTH, and have a good one,
Mike
09-16-2009, 12:28 PM
#6
Terminal Vette Addict
Thread Starter
Hmm I didnt even think about that. last 2 times i used RP filters, and this time the store didnt have it so went with Mobile 1 standard one.
thanks for the detailed reply, it seems your oil pressures are about where mine are, and I feel better about it. Wasnt topping 50 before in the 5/30 once i hit temps in the high 180s - 200
thanks for the detailed reply, it seems your oil pressures are about where mine are, and I feel better about it. Wasnt topping 50 before in the 5/30 once i hit temps in the high 180s - 200
