Oil pressure question - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

wootwoot · 02-01-2015, 03:26 AM

Hey guys.

I installed an innovative oil pressure guage on my car. I used the port on my skunk sandwich plate to install the sender. When I started the car the guage read 40psi at idle. It jumped rapidly to 100psi, the max pressure the guage reads, at 3000rpm. I am assuming this means the sender is no good, but I wanted to check with you guys before I contacted innovative for a replacement. No leaks or anything silly like that. Oil lines are 8an Aeroquip socketless. Core is a mocal laminova.

Woot

Decay107 · 02-01-2015, 03:28 AM

Was the car cold?

Ultramaroon · 02-01-2015, 03:29 AM

Stuck there? Even after it warmed up?

wootwoot · 02-01-2015, 03:56 AM

Car was cold. Didn't leave it running for too long. I have an oil temp guage as well. I guess I'll let it idel until the oil gets up to temp and confirm?

Ultramaroon · 02-01-2015, 04:28 AM

Quote:

Originally Posted by wootwoot

Car was cold. Didn't leave it running for too long. I have an oil temp guage as well. I guess I'll let it idel until the oil gets up to temp and confirm?

Allegedly, cold start oil pressure is well over 100 psi. You may just be looking at the top end of that gauge. I think I remember seeing a similar post last summer.

BatStig · 02-01-2015, 10:42 AM

Sandwich plate at the filter? Cold oil? That's normal. The pressures are real high there.

wootwoot · 02-01-2015, 08:01 PM

Quote:

Originally Posted by BatStig

Sandwich plate at the filter? Cold oil? That's normal. The pressures are real high there.

Really? How high do they get? The sender for my pressure gauge is too big to fit in the oil gallery location. If the pressure is over 100psi at the sandwich plate all the time I have no idea how to make the guage work in any helpful manner.

Ultramaroon · 02-01-2015, 08:54 PM

Quote:

Originally Posted by wootwoot

Really? How high do they get? The sender for my pressure gauge is too big to fit in the oil gallery location. If the pressure is over 100psi at the sandwich plate all the time I have no idea how to make the guage work in any helpful manner.

It's only high when it's cold. I think @BatStig means you're measuring oil pressure upstream of the oil filter but either upstream or down, it will be above 100 PSI when it's stone cold. Modern-day precision manufacturing.

wootwoot · 02-01-2015, 11:11 PM

Quote:

Originally Posted by Ultramaroon

It's only high when it's cold. I think @BatStig means you're measuring oil pressure upstream of the oil filter but either upstream or down, it will be above 100 PSI when it's stone cold. Modern-day precision manufacturing.

Ok. Helpful as always my good man. Thanks.

wootwoot · 02-02-2015, 02:27 AM

Took the car out for a spin. Got the water temp up to 200F. Oil was warm as well (of course). Saw 20psi at idel and 70psi at 3000rpm. Still seems high to me.... Is that about right? Or could I have an issue with my sender?

cdrazic93 · 02-02-2015, 02:43 AM

from what element tuning has cermized, you want 70ish psi all the way until redline. any lower than that and youll run into starvation issues.

wootwoot · 02-02-2015, 03:05 AM

Quote:

Originally Posted by cdrazic93

from what element tuning has cermized, you want 70ish psi all the way until redline. any lower than that and youll run into starvation issues.

I don't think you can have 70psi from 1k to 7k. Element is also pulling well over 1g on racing slicks.

I have read ideal oil pressure is 10psi per 1000rpm. That should put you at just under 10psi at idle and 70psi at redline. But ultimately I don't know.

Ultramaroon · 02-02-2015, 03:07 AM

Quote:

Originally Posted by wootwoot

Took the car out for a spin. Got the water temp up to 200F. Oil was warm as well (of course). Saw 20psi at idel and 70psi at 3000rpm. Still seems high to me.... Is that about right? Or could I have an issue with my sender?

Yeah, that's ballpark. No worries. Remember, you're measuring upstream of your filter. It'll read a bit higher.

Captain Snooze · 02-02-2015, 04:18 AM

Quote:

Originally Posted by Ultramaroon

Remember, you're measuring upstream of your filter. It'll read a bit higher.

Baby, when i drive you, there is peace on earth
I set out to thrash you with good oil pressure
I was racing inside, I am a thresher (<- poetic license?)

You do somethin' to me, the oil pressures droppin'
Rev me higher and I feel no pain
Every beat of my engine, we got somethin' jus' sayin'

Racing fast is blind, it requires a dedication
Honest racing, we feel, needs no conversation
And we race together, uh huh
Makin' laps with each other, uh huh

Oil pressure measured up stream, that is too high
No pressure drop between, how can we be wrong
Race away with me, to another track
And we rely on oil pressure, uh huh
From one bearing to another, uh huh

With apologies to Kenny Rogers & Dolly Parton.

02-01-2015, 03:26 AM	#1
wootwoot Senior Member Join Date: Jul 2012 Drives: FRS Location: Cali Posts: 1,558 Thanks: 188 Thanked 462 Times in 264 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	Oil pressure question Hey guys. I installed an innovative oil pressure guage on my car. I used the port on my skunk sandwich plate to install the sender. When I started the car the guage read 40psi at idle. It jumped rapidly to 100psi, the max pressure the guage reads, at 3000rpm. I am assuming this means the sender is no good, but I wanted to check with you guys before I contacted innovative for a replacement. No leaks or anything silly like that. Oil lines are 8an Aeroquip socketless. Core is a mocal laminova. Woot

02-01-2015, 03:28 AM	#2
Decay107 Turning is for Nerds Join Date: Aug 2013 Drives: 35 characters is not enough Location: PDX Posts: 1,974 Thanks: 836 Thanked 1,259 Times in 717 Posts Mentioned: 186 Post(s) Tagged: 3 Thread(s)	Was the car cold? __________________ My build thread / journal / evidence for warranty claim denial Motorcycle build thread

02-01-2015, 03:29 AM	#3
Ultramaroon not playing cards Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 32,395 Thanks: 53,053 Thanked 37,228 Times in 19,308 Posts Mentioned: 1117 Post(s) Tagged: 9 Thread(s)	Stuck there? Even after it warmed up? __________________ service manuals

02-02-2015, 02:43 AM	#11
cdrazic93 Junior Join Date: Aug 2013 Drives: a car Location: Probably at school Posts: 4,341 Thanks: 3,184 Thanked 2,512 Times in 1,502 Posts Mentioned: 20 Post(s) Tagged: 0 Thread(s)	from what element tuning has cermized, you want 70ish psi all the way until redline. any lower than that and youll run into starvation issues. __________________ "Ah! What music! They could have never imagined, those pioneers who invented the automobile, that it would posses us like this, our imaginations, our dreams. Men love women, but even more than that, men love CARS!"-Lord Hesketh

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Tire Pressure Sensors Question	NoFlush	Mid-Atlantic	5	02-07-2014 07:03 PM
Stock clutch+flywheel+pressure plate+ ACT lightweight flywheel & pressure plate	PineappleFriedRice	Transmission and Driveline	0	11-08-2013 05:54 PM
Question: TPMS Tire-pressure monitoring system installed on aftermarket wheels	Figo	Wheels \| Tires \| Spacers \| Hub -- Sponsored by The Tire Rack	7	08-05-2013 01:54 PM
Oil Pressure Sender Unit Fitment Question	Captain Snooze	Engine, Exhaust, Transmission	2	07-06-2013 01:41 AM
new rim/tire. question about bolts pressure? and etc	WATCHMEHEAL	Wheels \| Tires \| Spacers \| Hub -- Sponsored by The Tire Rack	3	03-25-2013 06:59 PM

02-01-2015, 03:56 AM	#4
wootwoot Senior Member Join Date: Jul 2012 Drives: FRS Location: Cali Posts: 1,558 Thanks: 188 Thanked 462 Times in 264 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	Car was cold. Didn't leave it running for too long. I have an oil temp guage as well. I guess I'll let it idel until the oil gets up to temp and confirm?

02-01-2015, 10:42 AM	#6
BatStig Some say..... Join Date: Jun 2012 Drives: 2007 Subaru Impreza 2.5i Location: Kitchener ON Posts: 502 Thanks: 819 Thanked 315 Times in 177 Posts Mentioned: 12 Post(s) Tagged: 2 Thread(s)	Sandwich plate at the filter? Cold oil? That's normal. The pressures are real high there.

02-02-2015, 02:27 AM	#10
wootwoot Senior Member Join Date: Jul 2012 Drives: FRS Location: Cali Posts: 1,558 Thanks: 188 Thanked 462 Times in 264 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	Took the car out for a spin. Got the water temp up to 200F. Oil was warm as well (of course). Saw 20psi at idel and 70psi at 3000rpm. Still seems high to me.... Is that about right? Or could I have an issue with my sender?

User Name		Remember Me?
Password