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Old 02-07-2014, 04:05 PM   #126
AdamBOMB_STi
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Member#: 103419
Join Date: Dec 2005
Chapter/Region: BAIC
Location: South Bay, CA
Vehicle:
04.7 STi
LA Sleeved 2.5,35R,Hydra

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Finally getting off my butt and gathering parts to get my motor back together! Sponsors welcomed! lol
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Old 02-08-2014, 01:34 PM   #127
rexworx
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Member#: 103232
Join Date: Dec 2005
Chapter/Region: Tri-State
Location: GTX3576R'dToy GTX3071R'dFXT
Vehicle:
05GD 04XT11WRX2.5XTR
PPG,4.44,LSD,E85,6spdx2

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I just wanted to give a little update while this thread is back from the dead. My build has about 21,000 miles on it. Still running strong. Knocks on wood...

04 sti single avcs built EJ257 "04 forester xt"
Mains .0015", Rods .0018" Edited as I missed a zero 0"
Castrol GTX 10w-40 non synthetic
11mm ported with 3 shims total
Oil Galley porting and cleaned up returns to pan
AEM digital oil pressure gauge 0-150psi Sensor placed in the oil galley plug next to the PCV bung/coolant crossover pipe
95-101psi Cold startup @ idle 1500rpm
22-30psi hot idle @ 850rpm
40-45psi hot @ 1500rpm
55-70psi hot @ 2000-6000rpm
70+psi hot @ 7000+rpm.

Id like to see if swapping in a ported shimmed 10mm pump might give me more oil pressure in the higher rpm range.

I know it would help if I had a oil temp gauge so I could be more specific with my readings. Thats next on my gauge list...

Last edited by rexworx; 01-02-2016 at 02:43 PM.
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Old 02-08-2014, 09:37 PM   #128
alcoolaid
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'07 SWP STi
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70psi sounds a little low at that rpm range. I would be shooting for at least 80-90 as when things get really hot the pressure can drop 10-20psi easily
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Old 02-08-2014, 10:17 PM   #129
AdamBOMB_STi
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Join Date: Dec 2005
Chapter/Region: BAIC
Location: South Bay, CA
Vehicle:
04.7 STi
LA Sleeved 2.5,35R,Hydra

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What oil are you guys running?
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Old 02-09-2014, 12:57 AM   #130
alcoolaid
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M1 15w50
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Old 02-09-2014, 01:11 AM   #131
AdamBOMB_STi
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LA Sleeved 2.5,35R,Hydra

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Sweet. I usually run valvoline vr1 20w50
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Old 02-12-2014, 08:51 AM   #132
rexworx
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05GD 04XT11WRX2.5XTR
PPG,4.44,LSD,E85,6spdx2

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Quote:
Originally Posted by alcoolaid View Post
70psi sounds a little low at that rpm range. I would be shooting for at least 80-90 as when things get really hot the pressure can drop 10-20psi easily
I agree. I see no change when the oil is "really hot" though. I also admit that I havent had the car on the tract for 20-30 minutes either. just some autox etc. not near the same...

Last edited by rexworx; 02-12-2014 at 09:51 AM.
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Old 03-16-2014, 03:48 PM   #133
Scargod
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silver

Default My take on pump shimming

Quote:
Originally Posted by Crystal_Imprezav View Post
Also, you should NOT be just throwing shims in based on your "gut" feeling and "design". You need to measure the spring pressure and adjust shims as necessary to meet the spec. The exact same way you would test a valve spring... There IS a reason some OEM factory pumps come with no shims, one shim, two shims, and etc.
I agree. Even when you get a new pump there are different manufacturers, different castings, different tolerances and human error that comes into play.
Spring pressure should be measured. I haven't heard a single person mention compressed, installed length and/or a spring pressure. Nor have I heard anything but "stock shim" mentioned. I'm guessing they have a number of combinations of shims to choose from when doing assembly and that someone is doing QC to maintain consistent results. I'm hearing people say that it does matter whether you add one or two shims. This means that +/- a half-thickness shim might be best.

Since this thread is titled oil galley porting I'd like to ask a question related to oil galleries. Is there an alternate place I could take oil out of the engine? Also, where could I return it? I'm trying to get away from oil lines around the headers. I already use an external filter, cooler and Accusump. Is it possible to block off the oil filter ports and route it somewhere else? I'm up for drilling and tapping, machining or welding to accomplish this.

Last edited by Scargod; 04-07-2016 at 11:39 AM.
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Old 01-02-2016, 09:49 AM   #134
rexworx
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Member#: 103232
Join Date: Dec 2005
Chapter/Region: Tri-State
Location: GTX3576R'dToy GTX3071R'dFXT
Vehicle:
05GD 04XT11WRX2.5XTR
PPG,4.44,LSD,E85,6spdx2

Default

Another update. I have about 65,000 miles on the engine. I DDd it for a few years but I have a 11 hatch for DD use now. I have done oil tests with Blackstone labs. All wear metals seem great. I will admit I have beaten the snot out of this engine. Im rather happy with the results so far.

Quote:
Originally Posted by rexworx View Post
I just wanted to give a little update while this thread is back from the dead. My build has about 21,000 miles on it. Still running strong. Knocks on wood...

04 sti single avcs built EJ257 "04 forester xt"
Mains .0015", Rods .0018" "Edited as I missed a zero"
Castrol GTX 10w-40 non synthetic
11mm ported with 3 shims total
Oil Galley porting and cleaned up returns to pan
AEM digital oil pressure gauge 0-150psi Sensor placed in the oil galley plug next to the PCV bung/coolant crossover pipe
95-101psi Cold startup @ idle 1500rpm
22-30psi hot idle @ 850rpm
40-45psi hot @ 1500rpm
55-70psi hot @ 2000-6000rpm
70+psi hot @ 7000+rpm.

Id like to see if swapping in a ported shimmed 10mm pump might give me more oil pressure in the higher rpm range.

I know it would help if I had a oil temp gauge so I could be more specific with my readings. Thats next on my gauge list...

Last edited by rexworx; 01-02-2016 at 02:42 PM.
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Old 03-11-2016, 09:52 PM   #135
AdamBOMB_STi
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Member#: 103419
Join Date: Dec 2005
Chapter/Region: BAIC
Location: South Bay, CA
Vehicle:
04.7 STi
LA Sleeved 2.5,35R,Hydra

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Awesome!
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Old 03-15-2016, 06:23 PM   #136
wrx1392
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2003 wrx
blue

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Quote:
Originally Posted by fastblueufo View Post
Another oil mod is on the main bearing journals. I know with acl bearings the oil feed hole on #2 and #4 mains don't line up with the feed hole in the bearing. You can reshape the feed hole in the main to match the hole in the bearing. #1, #3, and #5 oil feed holes in the mains are slightly larger and line up pretty good. Plus there is the oil valley that carries oil to the other side of the bearing. The #2 and #4 bearings don't have this valley. On my ej22t block the hole in the main and the hole in the bearing were offset by as much as 1/3 the size of the hole in the bearing. I will post pics later today when I get home from work.
I noticed this too when I built my last motor (#3) I thought the new King Bearing were wrong ...I looked at my old bearings (ACL) and you could see the impression on the back of the bearing shell .So I "ported " the back of the bearing shell a bit so it lined up better . the two previous motor failed from bearing issues . I also am using a 11mm STI pump with one shim added . runs down the freeway at 82 psi using Rotella T-6 oil.

Last edited by wrx1392; 03-15-2016 at 10:42 PM.
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Old 03-15-2016, 08:59 PM   #137
Scargod
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2008 STI hatch
silver

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Quote:
Originally Posted by wrx1392 View Post
I noticed this too when I built my last motor (#3) I thought the new King Bearing were wrong ...I looked at my old bearings (ALC) and you could see the impression on the back of the bearing shell .So I "ported " the back of the bearing shell a bit so it lined up better . the two previous motor failed from bearing issues . I also am using a 11mm STI pump with one shim added . runs down the freeway at 82 psi using Rotella T-6 oil.
Is this specific to EJ22 cases or which ones? A range of cases to be concerned about? I've had two EJ25* cases prepped recently, which means they sized the bearings to the cranks, and they never said anything about any mismatch or modding.
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Old 03-15-2016, 10:39 PM   #138
wrx1392
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mine is a 2003 2.0 EJ20 .I mean there is enough hole match to feed the bearings for a stock motor, but after having 2 motor go out ,one spun a bearing after 450 miles and the other went 30,000 before #2 & #4 fatigued bearings ...both times it was my fault ,but this time I just did not want to take any chances. maybe the factory does it that way to restrict the flow or a better word to meter the flow, in my bear package from King they had a picture of a "new" bearing that had way different shaped holes/slots for getting the oil up from the case. ill see if I can post a pic.
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