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Old 03-29-2009, 06:17 PM   #1
ckcadavona
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Default OEM or Aftermarket Oil Cooler?

I was researching an oil cooler setup. The OEM oil cooler is aprox $170. A aftermarket oil cooler setup should run $250-300. What are the pros and cons to running a aftermarket oil cooler without the OEM oil cooler? The car is a stock V5 EJ207 daily driver and at most will see an hpde / year or a few autoX's.
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Last edited by ckcadavona; 06-24-2010 at 01:10 AM.
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Old 03-30-2009, 11:48 AM   #2
methaddict
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I know the sti oem oil coolers run coolant through them. I'd keep the oem and add an external also if your autoxing.
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Old 03-30-2009, 12:06 PM   #3
Artie@Agile Auto
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^^^ +1. You can always get rid of the OEM and have aftermarket only, what aftermarket oil cooler you have in mind?
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Old 03-30-2009, 02:05 PM   #4
Patrick Olsen
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For $250-300, not a particularly good one, methinks. A proper oil cooler setup ain't cheap when you add everything up. You're looking at $200 just for a decent sized Mocal or Setrab oil cooler, let alone the AN fittings, the suitable lines, and the sandwich adapter. $400-500 is a more reasonable estimate from what I've seen (and done).

The OEM cooler is only marginally effective. It definitely helps, but even on my N/A EJ25 it isn't enough to bring temps down to where I'd like them to be. On track I saw 260F or so with the cooler, 270F without it. I plan to add an external oil-to-air cooler in addition to the OEM cooler.

Pat Olsen
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Old 03-30-2009, 02:16 PM   #5
DoodieHead
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I am going to be selling my Processwest oil cooler if you are interested. PM me.
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Old 03-30-2009, 04:12 PM   #6
mrubino83
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+1 one for an aftermarket oil cooler. Saw much better results with my B-Line Top Mount Oil cooler as opposed to running just the OEM with thermostat.

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Old 03-30-2009, 04:33 PM   #7
ckcadavona
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barrowed...

Greddy sandwich plate M20x1.5 (w/built in 180F T-stat) $95...or mocal for the same price

From Summit
B&M cooler with 1/2NPT inlet/outlets (11x5.75x1.5) $63
1/2NPT to -10AN fittings (x2) $9.50
Summit 10AN twist-tite fittings, $42 (2 straights and 2 90's)
10' Summit 10AN twist-tite hose $35

plus mounting hardware=

aprox. 250

Thanks for the input so far...from what I'm gathering the OEM oil cooler makes a marginal difference.
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Old 05-29-2009, 02:20 AM   #8
kakarotoni
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sorry to bring this back but where do you get most of the supplies to build your own? I searched for the Greddy sandwich plate M20x1.5 and the only site that was selling them discontinued them not too long ago....
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Old 05-29-2009, 03:19 AM   #9
methaddict
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I got all of my oil cooler supplies from www.racerpartswholesale.com. I just picked up a Tru-cool 24 row racing oil cooler for $45. They have 12, 24, 36, and 48 row sizes. I like the built in mounting flange for ease of installation. I bought the Canton sandwich adapter awhile ago, nice piece, billet aluminum, close tolerances, rubber o-ring has a wide foot print. Only thing with the canton you'd have to run a seperate oil thermostat. If you want to make it even easier they have the Mocal sandwich plate with a built in 180 degree thermostat.
Canton is the same company that makes the accusump. They also have the thermostat. I'll be using the Aeroquip socketless fittings and an adapter fittings, I believe I got four 1/2" npt -10an adapter fittings and four 90 degree socketless fittings, bought these awhile ago.

Quote:
TRU-Cool 24 Row Racing Oil Cooler
TRU-CoolŪ Economy Racing Oil Coolers- 24 Row

New anti-clog design keeps maximum air flow through cooler at all times. Lightweight aluminum alloy is vibration proof. All coolers come with a built-in bracket and a 1/2" NPT fitting. High-tech coolers are so efficient and durable, major NASCARŪ teams use them.

Size: 5-3/4" x 11" x 1-1/2"
Here's an idea of what it'll cost for a setup. Length of hose is just an example, estimate amount of hose needed and add a several more feet because you don't want this line kinked and it's always better to have more than less. You may need some heat resistant sleeve for hose next to the header which they sell also or you can also get it at www.hose-man.com.

Shopping Cart

Description QTY Total Price
-10 Aeroquip Socketless Hose, Black (10ft) $43.70
Aeroquip Socketless 90 Degree Elbow Fitting - -10 Aeroquip Socketless 90 Degree Elbow Fitting (4) $66.72
Aeroquip Straight Male Connector, Aluminum - Aeroquip Straight Male Connector, Alum. -10 to 1/2" (4) $15.40
Mocal Sandwich Plate- 20mm Thread (1) $86.95
TRU-Cool 24 Row Racing Oil Cooler (1) $44.95

* If you have changed the quantity of any of your items,
please make sure to update the cart before checking out.
Total: $257.72

Last edited by methaddict; 05-29-2009 at 04:08 AM.
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Old 05-29-2009, 04:13 AM   #10
MartinSTi05
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I am not a fan of the stock cooler because It directly ties oil temp to coolant temp. The differential in temperature between hot oil and hot coolant is not that much on a harsh track day and it really renders the stock cooler useless.
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Old 05-29-2009, 09:40 AM   #11
boost junkie
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Quote:
Originally Posted by MartinSTi05 View Post
I am not a fan of the stock cooler because It directly ties oil temp to coolant temp. The differential in temperature between hot oil and hot coolant is not that much on a harsh track day and it really renders the stock cooler useless.
The stock cooler also helps bring the oil up to temp more quickly since your coolant temp will rise much more quickly than oil temp. The best thing is to use the stock cooler and an external in addition.
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Old 05-29-2009, 11:20 PM   #12
jacky599r
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just to check, which temp rating for the thermostat is suitable for a hot climate like mine. I see 30 deg ~ c 24/7.
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