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Old 04-11-2012, 11:02 AM   #26
3MI Racing
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yeah, I go further in and hit points not shown here.

I only dive that deep into the block for more extreme duty engines. I spend a couple hours doing it.

The touch up stuff for the oil pick up, Indiana plate area, oil filter area, etc are all pretty quick and easy to get too.
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Last edited by 3MI Racing; 04-11-2012 at 11:08 AM.
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Old 04-12-2012, 02:05 PM   #27
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This is a great post Ive been searching on what can help with the oiling issues we have. Keep the pictures coming!
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Old 04-13-2012, 02:59 PM   #28
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Have you guys taken numbered drill bits and plunge the galleys to see how "manufacturing" changes from day to day?
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Old 04-14-2012, 12:54 AM   #29
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This is my first Subaru block that I have done porting to, but it may be tough to measure some of the galleys because they are long tapers.
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Old 04-14-2012, 01:30 AM   #30
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I'm just starting my motor build I wish I knew exactly what I was looking at in those pictures. I have run out of money and will have some free days to port varoius things until I can collect more funds. Porting everything I possibly can has been my keep busy lately on this thing.
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Old 04-14-2012, 01:54 PM   #31
col5555
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Quote:
Originally Posted by Crazykev View Post
Question for the engine builders:

I already sanded the sharp edges on the main bearing bridges that you see when looking into the cylinders, but has anyone ever thought of shaping those a bit? That air behind the cylinders is being pumped back and forth in the block and I was thinking that making them more aerodynamic would be beneficial possibly?

Something like knife edging a crank.
Check this link out http://forums.pelicanparts.com/911-e...main-webs.html
Some Porsche engines have mini scavange pumps in the heads to vacate the pooling oil.
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Old 04-14-2012, 11:40 PM   #32
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Cool! This is EXACTLY what I was thinking of doing. I'm going to go ahead and do it.

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Old 04-20-2012, 09:50 PM   #33
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Quote:
Originally Posted by 3MI Racing
yeah, I go further in and hit points not shown here.

I only dive that deep into the block for more extreme duty engines. I spend a couple hours doing it.

The touch up stuff for the oil pick up, Indiana plate area, oil filter area, etc are all pretty quick and easy to get too.


What is the Indiana plate area??

Mel
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Old 04-21-2012, 11:14 AM   #34
Crazykev
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I think he is refering to the chamber after the oil pickup tube.
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Old 04-21-2012, 05:56 PM   #35
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Good stuff guys lets keep it going. I did most of the above to my wrx motor. Im building a motor for my Forester fxt and plan to do a mild job on it. I dont have any proven results but I feel that cleaning up the casting inside the oil return on block and heads. IMO a car that is built and tracked, autoxed, or some form of rally should deff do the oil return passages and the pick up point. Weekend warrior to the more serious...

Just my thoughts
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Old 04-22-2012, 12:30 AM   #36
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after some searching around, I think the Indiana plate is the plate that you remove at the rear passenger side (USDM) to access the wrist pin and clip. Not sure what needs to be smoothed out back there though.

ideas?
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Old 04-22-2012, 01:08 AM   #37
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thanks for the ideas CrazyKev. Just in the process of drilling my cam bolts off and then onto splitting the halves and cleaning up all the rough oil passages as so nicely outlined in above posts.

mel
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Old 04-23-2012, 04:35 PM   #38
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No problem. After I did the porting, I found out that it's semi-common?
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Old 05-20-2012, 02:19 AM   #39
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Anybody got any pics of a ported oil pump?
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Old 05-20-2012, 03:00 AM   #40
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Quote:
Originally Posted by jesterjames View Post
Anybody got any pics of a ported oil pump?

I've got pictures I can try and dig up this weekend. I'm fairly certain I have pictures of Cosworths Pumps and our in house pumps.
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Old 05-20-2012, 12:12 PM   #41
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Quote:
Originally Posted by Crazykev View Post
No problem. After I did the porting, I found out that it's semi-common?

Its more common for guys in the industry, its pretty uncommon for a do it yourselfer to do.

Its good info for the community regardless.
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Old 05-21-2012, 12:04 AM   #42
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Quote:
Originally Posted by B.R.E.D View Post
I've got pictures I can try and dig up this weekend. I'm fairly certain I have pictures of Cosworths Pumps and our in house pumps.
I'd love to these pics. It's all I have left to do.
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Old 05-21-2012, 12:05 AM   #43
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Quote:
Originally Posted by jesterjames View Post
Anybody got any pics of a ported oil pump?
I know I have some that I'd put up years ago under my Homemade WRX account. I'm not sure when I'll be 'cleaning' the next batch.

Last edited by 3MI Racing; 05-21-2012 at 12:10 AM.
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Old 05-21-2012, 12:26 AM   #44
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Ill order one and port it this week and Ill document the process. Its something we sell but the process isn't a secret and if guys want to do it themselves that's fine with me.

Ill try and get something together by mid week.

Matt
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Old 05-21-2012, 02:14 AM   #45
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Its not much. Just match the seal area on the pressure side and smooth out the intake. You should remove the gear cover and port some castings from in there as well. Takes about five mins. Need to shim it? Remove the allen key and add a washer to the bottom of the spring.

I would also check the plunger if its sticking. Deburr if necessary

Edit: here is a horrible diy someone did. If no one does a diy in a couple of days ill write one up for u.

http://flat4nc.com/forumnew/viewtopic.php?f=33&t=4122

Last edited by wrxsubiemod; 05-21-2012 at 02:34 AM.
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Old 05-22-2012, 09:47 PM   #46
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Any updates? My burr is just itching to open up the oil pump outflow port, but I would love to see some examples from the pros first.
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Old 05-22-2012, 09:56 PM   #47
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I wish I took better pics, but I used a thin dremel attachment to port my oil pump. i might have one pic.

I was able to clean up the inlet and outlets to the rotor. As well as the o-ring port that mates up with the engine block. Oil pressure is amazing in my motor.
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Old 05-22-2012, 10:11 PM   #48
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I can post mine when I get home. Nothing special or different than already posted though. I haven't gotten to my pump yet but it's next on the list.
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Old 05-22-2012, 11:23 PM   #49
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Quote:
Originally Posted by mboulton
Any updates? My burr is just itching to open up the oil pump outflow port, but I would love to see some examples from the pros first.
Well if my last post and link were useless ill be doing this tomorrow along with another thread.

Id honestly wouldn't attempt this if this is someones first try. I really don't see much that could be gained from porting the oil pump. I would actually advise everyone to just check the plunger operation for any sticking. That's it!

Your better off just buying the pump you need for your build and maybe modifying a few passages on your block.
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Old 05-23-2012, 05:06 PM   #50
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I am confident that I can do it. But it never hurts to see what other people have done, so as to learn from their victories and follies.

Still eager to see.
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