What do you consider low oil pressure? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

protpibe · 01-12-2014, 07:16 PM

I'm in the process of installing an Innovate MTX Oil temp and pressure gauge. It has the ability to setup alarms for what you deem to be low oil pressure, and high oil temperature.

I was just wondering what the general consensus was on what those figures are?

FRSFirestorm · 01-12-2014, 07:24 PM

In the day, when I was building old school engines, the general rule of thumb was 6 psi per 1000 rpm was a minimum. Don't know how that would apply today.

humfrz · 01-12-2014, 07:37 PM

Quote:

Originally Posted by FRSFirestorm

In the day, when I was building old school engines, the general rule of thumb was 6 psi per 1000 rpm was a minimum. Don't know how that would apply today.

As I recall, back in the day ...... 60 psi with thick oil and a cold engine was the norm. 20-30 psi with thinner oil and a warm engine was good.

Now that you know what was "good" from ol FRSFirestorm and humfrz, back in the day, you can sit back and wait for some 21st century information ......

humfrz

Sportsguy83 · 01-12-2014, 07:57 PM

9 psi

xwd · 01-12-2014, 08:09 PM

I'll say 10psi. When the engine is warm my idle pressure is probably around 16psi.

As far as temperature I would say 240. People have certainly seen higher on track days and whatnot but that's what I set mine to.

Ice · 01-12-2014, 08:54 PM

Quote:

Originally Posted by dwx

I'll say 10psi. When the engine is warm my idle pressure is probably around 16psi.

As far as temperature I would say 240. People have certainly seen higher on track days and whatnot but that's what I set mine to.

This.

On a street engine, you want about 10psi per 1k rpm.

I.e. at 7500 rpm you want 75 psi.

This goes up if its a race engine etc, I run 11 on my engine

Depends on what oil you use as well (as to what reading you get).

getbent · 01-12-2014, 09:27 PM

I believe Subaru specifies 7psi minimum at idle. I typically observe about 1 bar per 1000 rpm.

Ice · 01-12-2014, 10:30 PM

Quote:

Originally Posted by getbent

I believe Subaru specifies 7psi minimum at idle. I typically observe about 1 bar per 1000 rpm.

Measured from?

getbent · 01-13-2014, 10:17 PM

Oil pressure sensor located in oil gallery on the top of the block.

Ice · 01-14-2014, 01:00 AM

Interesting.

Is this the stock location?

getbent · 01-14-2014, 10:19 PM

No, the factory oil pressure (switch) and oil temperature (sensor) are located just below the oil filter on the front of the motor.

01-12-2014, 07:16 PM	#1
protpibe Senior Member Join Date: Oct 2013 Drives: 4-Runner Sport - 13' BRZ SportTech Location: Winnipeg Posts: 1,395 Thanks: 253 Thanked 839 Times in 459 Posts Mentioned: 18 Post(s) Tagged: 0 Thread(s)	What do you consider low oil pressure? I'm in the process of installing an Innovate MTX Oil temp and pressure gauge. It has the ability to setup alarms for what you deem to be low oil pressure, and high oil temperature. I was just wondering what the general consensus was on what those figures are?

01-12-2014, 09:27 PM	#7
getbent Senior Member Join Date: May 2012 Drives: 2013 FR-S Blue MT Location: Raleigh, NC Posts: 162 Thanks: 4 Thanked 37 Times in 26 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	I believe Subaru specifies 7psi minimum at idle. I typically observe about 1 bar per 1000 rpm. __________________ 2013 Scion FR-S \| 6MT \| UltraMarine

01-13-2014, 10:17 PM	#9
getbent Senior Member Join Date: May 2012 Drives: 2013 FR-S Blue MT Location: Raleigh, NC Posts: 162 Thanks: 4 Thanked 37 Times in 26 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Oil pressure sensor located in oil gallery on the top of the block. __________________ 2013 Scion FR-S \| 6MT \| UltraMarine

01-14-2014, 10:19 PM	#11
getbent Senior Member Join Date: May 2012 Drives: 2013 FR-S Blue MT Location: Raleigh, NC Posts: 162 Thanks: 4 Thanked 37 Times in 26 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	No, the factory oil pressure (switch) and oil temperature (sensor) are located just below the oil filter on the front of the motor. __________________ 2013 Scion FR-S \| 6MT \| UltraMarine

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01-12-2014, 07:24 PM	#2
FRSFirestorm Red is Fastest Join Date: Dec 2012 Drives: 13 FRS 6MT Firestorm Location: Central Kentucky Posts: 439 Thanks: 85 Thanked 242 Times in 120 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	In the day, when I was building old school engines, the general rule of thumb was 6 psi per 1000 rpm was a minimum. Don't know how that would apply today.

01-12-2014, 08:09 PM	#5
xwd Senior Member Join Date: Feb 2012 Drives: 2013 DGM Subaru BRZ (Subie #9) Location: ATL, US Posts: 2,667 Thanks: 123 Thanked 860 Times in 552 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	I'll say 10psi. When the engine is warm my idle pressure is probably around 16psi. As far as temperature I would say 240. People have certainly seen higher on track days and whatnot but that's what I set mine to.

01-14-2014, 01:00 AM	#10
Ice Member Join Date: Dec 2011 Drives: 323 Location: Australia Posts: 14 Thanks: 1 Thanked 2 Times in 1 Post Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Interesting. Is this the stock location?

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