Observed Oil Pressure with a gauge

mults · 08-27-2018, 02:14 PM

I see a red light with the engine off and no light at everything else

.

Seriously, I have a 150# gauge that I need to install on the A Pillar, so at least now I know what I should expect to see.

This is a great thread..

MotorvateDIY · 08-28-2018, 08:49 AM

I don't like the "Tee" fittings either. I worry if the belt breaks, it could snap the oil off pressure sensor.

Here is a preview of a future episode "Making an Inexpensive OLED Oil Pressure Gauge"
It uses an Arduino Uno clone, 128x32 OLED display and a 150 PSI digital pressure sensor.

SouthArk370Z · 08-28-2018, 11:36 AM

It's probably NPT if the package says so.
From the Defi web site:

Quote:

USDM models (Imperial unit) and JDM models (SI unit) are available

filip00 · 03-12-2023, 02:34 PM

Raising this thread as I finally had a chance to observe oil pressure for a moment and I'm not sure if I'm worried for no reason or not.

So, I only just checked cold/warm idle and 3k rpm pressures and they were:

Cold startup oil pressure: 7.5bar ~ 108psi
Warm idle oil pressure: 1.6bar ~ 23psi
Warm at 3k rpm: >4bar ~ 58psi

This is with the 25row oil cooler with the thermostatic plate (so it wasn't open at the time of reading), and the pressure sensor is Tee'd of the factory mounting point.

I have replaces galley gaskets last year. This should all be good, right?

Averying · 03-12-2023, 02:56 PM

Quote:

Originally Posted by filip00

Raising this thread as I finally had a chance to observe oil pressure for a moment and I'm not sure if I'm worried for no reason or not.

So, I only just checked cold/warm idle and 3k rpm pressures and they were:

Cold startup oil pressure: 7.5bar ~ 108psi
Warm idle oil pressure: 1.6bar ~ 23psi
Warm at 3k rpm: >4bar ~ 58psi

This is with the 25row oil cooler with the thermostatic plate (so it wasn't open at the time of reading), and the pressure sensor is Tee'd of the factory mounting point.

I have replaces galley gaskets last year. This should all be good, right?

Those all seem fine. Maybe a bit lower than typical but they’re in spec.

Nissan calls out >14psi at idle, >42psi at 2k rpm when warm.

Sent from my iPhone using Tapatalk

SG4247 · 11-23-2024, 03:46 PM

To me, the best oil pressure indicator, is with the oil temp at 180F and in first gear (7AT) foot brake on, AC off, with idle at 675-700 rpm.

Mine shows 21-23 psi, just after galley gaskets replaced on an engine with 58k miles.

Da Flash · 11-23-2024, 05:07 PM

Well, I may have been a bit premature. After driving the car for 20 mins, the idle pressure is ~14-15lbs. Looks like I will be tackling those gaskets next month when I'm off for a week.

redondoaveb · 11-24-2024, 01:52 PM

Quote:

Originally Posted by Da Flash

Well, I may have been a bit premature. After driving the car for 20 mins, the idle pressure is ~14-15lbs. Looks like I will be tackling those gaskets next month when I'm off for a week.

Minimum hot oil pressure at idle is 14 psi

08-27-2018, 02:14 PM	#1 (permalink)
mults A True Z Fanatic Join Date: Aug 2011 Location: Cleveland, OH Age: 70 Posts: 1,830 Drives: 2010 (40th) #706 Rep Power: 16886	I see a red light with the engine off and no light at everything else . Seriously, I have a 150# gauge that I need to install on the A Pillar, so at least now I know what I should expect to see. This is a great thread.. Rusty likes this. __________________ 40th Anniversary 'Z', 312.06HP/260.58TQ (Dynosty EcuTek Tune) Build Date/Number: 1/27/2010 #706 Berk HFC + CBE, R2C CAI, Clear Bra, Cleveland Z Club[/COLOR]

11-23-2024, 03:46 PM	#6 (permalink)
SG4247 Track Member Join Date: Oct 2016 Location: OKC Posts: 819 Drives: 2010 touring Rep Power: 7842	To me, the best oil pressure indicator, is with the oil temp at 180F and in first gear (7AT) foot brake on, AC off, with idle at 675-700 rpm. Mine shows 21-23 psi, just after galley gaskets replaced on an engine with 58k miles. Da Flash and Averying like this. __________________ NA on E85 - 12.402 @ 112 mph 100 shot E85 - 11.589 @ 117 mph JWT C2 cams rev Base Circle & Titan Valves

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03-12-2023, 02:34 PM	#4 (permalink)
filip00 Track Member Join Date: May 2021 Location: slovenia Posts: 577 Drives: 370z pack Rep Power: 125428	Raising this thread as I finally had a chance to observe oil pressure for a moment and I'm not sure if I'm worried for no reason or not. So, I only just checked cold/warm idle and 3k rpm pressures and they were: Cold startup oil pressure: 7.5bar ~ 108psi Warm idle oil pressure: 1.6bar ~ 23psi Warm at 3k rpm: >4bar ~ 58psi This is with the 25row oil cooler with the thermostatic plate (so it wasn't open at the time of reading), and the pressure sensor is Tee'd of the factory mounting point. I have replaces galley gaskets last year. This should all be good, right?

11-23-2024, 05:07 PM	#7 (permalink)
Da Flash Base Member Join Date: Mar 2017 Location: Houston Posts: 39 Drives: 09 370z 6MT B/Sport Rep Power: 9	Well, I may have been a bit premature. After driving the car for 20 mins, the idle pressure is ~14-15lbs. Looks like I will be tackling those gaskets next month when I'm off for a week.