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2G Low Oil pressure

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explicitgst

15+ Year Contributor
55
43
Apr 3, 2007
Barrie, ON, Canada
Hey guys, wondering if someone could point me in the right direction with regards to my oil pressure situation.

I have a 7 bolt, non-split thrust bearing motor in my 95 Talon TSI. I purchased it, pretty much non running and have spent the better part of two years overhauling the entire car, electrical, interior, and around the engine bay. I've replaced seals front and rear. No oil leaks anywhere.
Compression numbers were 180psi across all four cylinders. No smoke, nothing that concerns me or has drawn my attention, which is why I'm reaching out to you guys.

Engine sounds healthy, does not over heat, and was tuned remotely last year by a reputable member of the forms.
I have an AEM oil pressure gauge that I've noted reads the following psi at various rpms, fully warmed up.

800rpm its 5 psi!!!
1000rpm 10psi
2000rpm 23psi
2500rpm 32psi
3000rpm 40psi
3500rpm 50psi
4000rpm 61psi

I am using 15w-30 synthetic oil and added some LucasOil stabilizer to try remedy this low oil pressure but these are the numbers as it is currently.
I haven't driven it much more than that power-band as I am breaking in a SouthBend kevlar clutch.

I'm not 100% sure if the pressures listed above are good or not, but I feel nervous as shit when I come to a light and I see the low pressure.

Now, one last thing about my setup. I switched oil filter housings, thinking my old oil filter housing pressure relief valve was gummed up or something. I bought it brand new from STM.
The forward facing oil filter housing has only one port; I used a fitting at the filter housing to split in two directions, one to the turbo, the other a line to a junction, mounted where the ABS used to be.
That junction has the cluster gauge oil pressure sensor, the AEM pressure sensor and I believe the dummy light sensor.

I could really use some input or guidance as to what to look for. Help =) please?
 
I've used amayama a bunch in the past. Love them. No shock duties when the packages arrive. Recently got crossmemeber bolts and collars that are unobtainium, unless you use Amayama.


I'll probably get that, front and rear main seals, freeze plugs, piston rings.
Cylinder walls in the 6 bolt look good, but probably still get them honed, a good hot tank cleaning, have the crank looked over.

I just wanted to drive the car this year. It's been 3 years since I bought it.
 
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