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· Registered
2004 CTS-V
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55 Posts
So I know this is a little old, but I thought it would be the place to go being that it's a sticky. I'm thinking about my options for setting up an oil cooler on the V. My car is a DD, but it also sees a few track days a year where it runs pretty hot. My original plan is go to with a basic cooler set up with a low profile adapter/thermostat. I've heard this option doesn't work with headers, but I don't currently have plans to put headers on the car. Here's the parts list I'm currently considering.

Oil cooler ---http://www.summitracing.com/parts/der-52510/overview/
Adapter/thermostat ---http://www.improvedracing.com/oil-adapters/low-profile-oil-cooler-adapter-thermostat-for-ls-series-engine-p-209.html#!prettyPhoto
1X 60* fitting (adapter fitting) ---http://www.improvedracing.com/an-swivel-hose-end-fittings/raceflux-an-60-degree-double-swivel-seal-hose-end-fitting-p-145.html
3X 90* fittings ---http://www.improvedracing.com/an-swivel-hose-end-fittings/raceflux-an-90-degree-double-swivel-seal-hose-end-fitting-p-146.html
10 feet of AN hose ---http://www.improvedracing.com/an-hose/aeroquip-startlite-lightweight-racing-hose-10an-p-164.html

Another idea I've been throwing around is the Mocal Laminar oil to water heat exchanger like this one here. http://www.racerpartswholesale.com/product/1561/Mocal_Heat_Exchangers It sounds like a great idea in concept, but it isn't the cheapest option and implementation sounds like it might be difficult to find places to splice into the coolant system.

So, what's my best option? My overall goal is to have a solid oil cooler that isn't overly complicated and doesn't break the bank. I only did a mental fitment as far as fittings and adapters go, so any advice or recommended changes are greatly appreciated.
 

· Registered
2004 CTS-V
Joined
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55 Posts
Well now that I've had the cooler on for a week and two track days I think it's time to get on here. I ended up mounting the cooler behind the lower grill from two L brackets, attached to the bumper bar with self tapping screws. The cooler does hang a little low, but the splash guard still fits and I could raise it about two inches by flipping around the L brackets if I needed to. In hindsight I should have gone with slightly sharper bending fittings off of the adapter, maybe a 90* and a 120* instead of a 45* and 90*.

As far as performance, my cruising oil temperatures went from 230*-240* down to 210* as read from the dash gauge. Track temperatures however went from 320* to about 305*, which is really questionable for a 80* ambient day. All I know is that the gauge is unreliable and I'm glad to have the piece of mind this cooler gives me. I was working pretty quick when I put the cooler in, but if anyone wants pictures of anything just let me know. Thanks for all of the help guys!
 

· Registered
2004 CTS-V
Joined
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55 Posts
I'm fairly confident that the sensor reading is way off. Turning the AC on can make the temperature jump as much as 25 degrees instantly when the oil is really hot. I haven't gotten around to fixing any of the grounds, but even if my problem is completely electrical I figured having the cooler would be helpful for track days. I didn't wrap any of my hoses yet, but I think I will soon as one hose is fairly close to an exhaust manifold. Thanks for the link.
 
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