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Old 04-27-2003, 09:39 PM   #1
Scooby Specialist
Member#: 30050
Join Date: Nov 2002
2009 STI

Default Are these gauge readings correct? post yours too please!

I just installed Omori 45mm Oil Pressure, EGT and Boost.
These are my readings:
Boost: -15 to -20 psi at idle, slightly higher under throttle, 13max under WOT.
Oil Pressure: Start the car and it's at 80lbs, 85lbs. Under drive it's between 40-90. At idle after warm: about 30lbs.
EGT: between 1000 and 1300 deg. F. Sensor was installed at piston #3, 3" down on exhaust manif.

Boost seems low, but that's probably right considering I have an up-pipe leak.

Oil Pressure seems odd that it would fluctuate so much under driving conditions - I guess. Shouldn't it hover at about 70-80lbs and stay there?

EGT seems ok, I guess.

Could people please post their readings and advize on how my readings seem in relationship to the norm - They're now and I'm trying to decipher if they're ok or need any additional attention.
Thank you.
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T33 is offline   Reply With Quote
Old 04-27-2003, 09:43 PM   #2
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Member#: 10757
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NJ
2013 BRZ Limited 6MT


Those readings look about right assuming the only mod you have is an uppipe. Oil pressure will fluctuate depending on whether your at idle or on the throttle. Your boost won't be higher with a uppipe. In order to increase boost, you'll need a boost controller or engine management that controls the FBC, i.e. Ecutek, Access ECU, etc.

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Old 04-27-2003, 09:44 PM   #3
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Member#: 9090
Join Date: Aug 2001
Location: < of Boston
09 Forester Gump


Stock boost should be around 13psi.

Those reading seem pretty normal. Not too sure about the EGT tho.

The oil pressure is one of the best ways to really know when your car is warmed up or not.

90psi = not so good

Let the car warm up till the oil pressure drops before you beat on it.

Otherwise they seem normal to me.
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Old 04-28-2003, 11:15 AM   #4
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Member#: 30050
Join Date: Nov 2002
2009 STI


Thanks guys. That's awesome. My buddy installed the gauges and he did a great job - just checking to see what the normal readings are - thanks again!
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Old 04-28-2003, 11:53 AM   #5
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Member#: 34658
Join Date: Mar 2003
Location: North Jersey
2002 WRX


EGT danger zone is above 1500/1600 degrees. That would mean that your running lean so the solution would be to turn down the boost or add fuel.
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Old 04-28-2003, 12:11 PM   #6
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Member#: 13634
Join Date: Dec 2001
Chapter/Region: NESIC
Location: Boston
2002 WRX


everything's fine. your EGTs should never get that high. right now i'm running an uppipe, stealthback, and TMIC, factory boost control (get roughly 15psi), no engine management and my EGTs never go above 800C (1472F).
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Old 04-28-2003, 12:26 PM   #7
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Join Date: Sep 2002
Location: So. CA
'08 Foz Prem TGM
'10 Challenger R/T Blk


I can vouch for your boost and oil pressure readings being normal (this is close to what I get on my 52mm Omori's).

Just a tid-bit: when you read your boost gauge, anything below zero (vacuum) is represented in "inHg" (inches of mercury). Above zero is in PSI.

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Old 04-28-2003, 01:35 PM   #8
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Member#: 25904
Join Date: Oct 2002
2003 WRX
WR Blue/Gold


T33, what max boost do you get in 1st gear? I get .02-.03 Mpa peak. My max boost is .095Mpa in 3rd (I think) ,4th and 5th (for sure .
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