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Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

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Old 08-01-2007, 09:15 PM   #1
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Oil Cooler Install

Ok so my stock oil cooler cracked around one of the fittings, and I had planned on replacing it so I took this as the time. I went the route of stainless braided lines and AN fittings for several reasons.

Has anyone else that has installed an aftermarket cooler used the stock oil ports? (I do not want to use an oil filter spacing puck) If so what type of fittings did you use?

I used 20mmx1.5 to -10AN adapters. I wish Saab had used so simple fittings instead of the ones they did. I have tried pipe dope and Permatex thread sealant(which is meant to be great stuff) on throughly acetoned threads to seal them, but no luck. DRIP DRIP DRIP!
My next step is either welding AN fittings onto the stock steel pieces or pulling off the oil filter block and welding on my AN fittings.
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Old 08-01-2007, 09:21 PM   #2
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Did you use a crush washer where the AN fittings go into the filter housing?



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Old 08-02-2007, 02:32 AM   #3
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No, i was going to use an o-ring, but the fittings bottom out before the hex does. I might cut some threads off and try that.
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Old 08-02-2007, 04:20 AM   #4
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Quote:
Originally Posted by Spoolin900SE View Post
No, i was going to use an o-ring, but the fittings bottom out before the hex does. I might cut some threads off and try that.
Thats your issue right there. Send Marty a PM and he can find out what the actual thread pitch was. Almost sounds like its a M20x1.0 since M20x1.5 bottomed out before making a seal.



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Old 08-02-2007, 12:21 PM   #5
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No, its the right thread pitch, the fittings screw in smotthly. The prob for using an o-ring is that there are more male threads than female, thats why i said i may cut some threads off of the fittings and try that.
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Old 08-02-2007, 12:51 PM   #6
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Here are some pics of it so far.


After i took this picture i realized the cooler was not leve; and fixed it.



The fittings that wont seal.

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Old 08-02-2007, 02:01 PM   #7
 
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Teflon tape?
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Old 08-02-2007, 04:32 PM   #8
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Quote:
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Teflon tape?
YUP
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Old 08-02-2007, 06:08 PM   #9
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No the Permatex thread sealant has teflon in it and is meant to out perform the tape.
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Old 08-02-2007, 07:00 PM   #10
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See I thought the pitch referred to the length of the threads from the tip to there base. Guess I was wrong. Have your tried stacking crush washers to solve this issue? I would love to do an oil cooler like that btw as I think what we have stock is trash and doesn't do its job sufficiently.



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Old 11-04-2007, 04:27 PM   #11
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Spoolin, how did you end up fixing this?
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Old 11-04-2007, 04:31 PM   #12
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I hope you didn't pay too much for that oil cooler, that looks like one directly out of a 9k...
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Old 11-04-2007, 07:06 PM   #13
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how much does an oil cooler help, and do the ng900 have then stock. i would look on my car but it is 400 miles away.
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Old 11-04-2007, 07:09 PM   #14
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NG's and 9-3s have them stock. Some members are concerned about them more than others, unless yours isn't working or your making ridiculous amounts of power, your money is better spent elsewhere.
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Old 11-04-2007, 08:57 PM   #15
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Quote:
Originally Posted by spanky View Post
how much does an oil cooler help, and do the ng900 have then stock. i would look on my car but it is 400 miles away.
The problem I have with the stock ng900/og9-3 oil cooler is that its very thin size and its location (under the intercooler and out of any direct airflow) bothers me. A 9000 intercooler isn't much better sitting right behind the radiator in the engine bay.

I'd personally like to get an oil temp gauge running in my car sometime soon to start tracking oil temp numbers along with my pressure numbers to see where the stock oil cooler keeps things and then eventually switch to a good setup that has a nicer contact area and place it in a source of direct airflow.



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Old 11-05-2007, 03:08 AM   #16
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Quote:
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NG's and 9-3s have them stock.
Except for n/a's.
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Old 11-05-2007, 04:43 AM   #17
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Except for n/a's.
N/A's don't have them? you poor guy

07 Bmw turbos don't have them either.
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Old 11-05-2007, 04:53 AM   #18
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Thats your issue right there. Send Marty a PM and he can find out what the actual thread pitch was. Almost sounds like its a M20x1.0 since M20x1.5 bottomed out before making a seal.
M20 with 1.5mm pitch is the correct thread size. Please note that the hole is not "threaded" to the bottom and many pre-made nipples will "bottom-out" before seal surfcase meet.
One way to solve the matter is to shorten the nipple
http://www.npr.fi/~heikki/oilcooler/oilcooler-nipat.jpg
and to use copper seal for sealing
http://www.npr.fi/~heikki/oilcooler/...ler-nipat2.jpg
http://www.npr.fi/~heikki/oilcooler/...aikallaan1.jpg
Leg from 9000, but works with NG900 as well.
9-3 at least the T7 ones do not have threaded connections anymore.
http://www.npr.fi/~heikki/misc/oilcooler9-3b.jpg

Last edited by Vigge; 11-05-2007 at 05:03 AM.
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Old 11-05-2007, 08:05 AM   #19
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Vigge:I have been wanting to do an oil cooler upgrade/replacement for a while and my 99 9-3 has the newer,non threaded style holes on that housing. Can I simply get one from a ng900 and bolt it on or is there anything else needed?
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Old 11-05-2007, 08:10 AM   #20
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N/A's don't have them? you poor guy

07 Bmw turbos don't have them either.
HAHAHA

like the install the SS lines look fancy.
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