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Old 09-20-2007, 10:34 AM   #1
bigmike25rs
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Member#: 83924
Join Date: Mar 2005
Chapter/Region: MWSOC
Location: Avon Lake, OH
Vehicle:
2005 HTA 86 STi
10.66 @ 136 mph

Default external oil cooler

I was planning to run an external setup on my car, but I've come across a few issues.. For one, the stock lines. I'm pretty sure I'm just going to run them together with some aluminum hose, but I'm open to ideas.(picked up a few ideas from Mick's build thread) The biggest issue is the adapter plate. The Subaru main bolt that holds the stock cooler is way too long to fit a sandwich adapter.. What are people using in place? We even scavanged a few other ones from random motors we had in the shop, but none of them would fit the Subaru threads. Any ideas? Who's running an external setup?
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Old 09-20-2007, 12:21 PM   #2
rlavalle
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Join Date: May 2002
Location: Seattle 'burb (Kirkland)
Vehicle:
2004 STi: 580 AWHP
Java Black Pearl

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Your sandwich adapter should come with the appropriately sized center bolt. Did yours get lost or did it not come with one?

Russ
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Old 09-20-2007, 01:03 PM   #3
bigmike25rs
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Vehicle:
2005 HTA 86 STi
10.66 @ 136 mph

Default

The stock oil cooler is going to be eliminated, so the male end is out of the picture. I need to replace the main bolt to make up for the size difference. Basically, I need a double male end thread that is smaller than the stocker.

Last edited by bigmike25rs; 09-20-2007 at 01:15 PM.
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Old 09-20-2007, 02:03 PM   #4
rlavalle
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2004 STi: 580 AWHP
Java Black Pearl

Default

Oh, I think I get it now!

I am at work now, so can't see my sandwich plate bolt, but if I recall correctly, it's female on one end (that connects to oil cooler) and male on the other (where the filter connects). But when you remove the oil cooler and it's bolt that has male threads on both ends, you're left with nothing to connect your sandwich plate bolt to.

What you'd need is a replacement stock bolt that's used in cars without the oil cooler. Ought to be something available from a Subaru dealer.

I still haven't decided whether to remove the stock cooler or not. I'm installing a lower temp thermostat, so if the oil ends up at 180 degrees instead of 200+,that ought to be OK.

Russ
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Old 09-20-2007, 02:38 PM   #5
mick_the_ginge
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Join Date: Oct 2002
Chapter/Region: NWIC
Location: Portland, Oregon
Vehicle:
2003 Sleeved 2.5
Oil Dry Sump Goodness

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Subaru RS bolt shoud work, the RS does not have an oil cooler
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Old 09-20-2007, 02:46 PM   #6
sick1.8t
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2003 RSX
black

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or any other subaru that isnt turbo.
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Old 09-21-2007, 12:36 AM   #7
bigmike25rs
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Join Date: Mar 2005
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Vehicle:
2005 HTA 86 STi
10.66 @ 136 mph

Default

Great, thanks for the help guys.. I've got a 2.5RS main bolt on order..
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