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Thread: Oil cooler options

  1. #1
    Senior Member Jord's Avatar
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    Oil cooler options

    Are these high and low pressure ports? Or are they both equal pressures? I want to weld some aluminum AN fittings to them to run an oil cooler.

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    Re: Oil cooler options

    Quote Originally Posted by Jord View Post
    Are these high and low pressure ports? Or are they both equal pressures? I want to weld some aluminum AN fittings to them to run an oil cooler.
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    Remember there is a thermostat inside..which opens at 100 or 110,degrees,and fully opens at 125 degrees(oil temp).So the oilcooler circuit is "rarely" in use..i would dare to say never..unless you are tracking the car..or live in an extremely hot climate.
    Here is a video i did..and you can watch it from 10min 30 sec..and you will see the thermostat.

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  4. #3
    postwhore posterchild Klink's Avatar
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    Re: Oil cooler options

    I haven’t looked recently, but IIRC it doesn’t even start to open ‘till 115°C. They do nothing other than in long autobahn driving in the summer near top speed, HARD Alpine climbing with a full load of passengers and luggage, and/or pulling a trailer at high-speed. With with modern synthetics, it’s completely pointless. That is also why they have largely gone away even in the highest performance modern cars. In fact, most modern cars use an oil to coolant heat exchanger so that whichever one is hotter at the time can HEAT the other. Efficiency, you know. Thermostatic control is a must. Oil that is not hot enough is EVIL...
    Putting the fun in dysfunction...

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  6. #4
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    Re: Oil cooler options

    I thought all the Renntech/Brabus/AMG 6.0 liters got the oil cooler.

    My car has the conversion.

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    Re: Oil cooler options

    Quote Originally Posted by samiam44 View Post
    I thought all the Renntech/Brabus/AMG 6.0 liters got the oil cooler.
    Most, but not all RENNtechs... depended on the customer.

    Don't know about Brabus.

    Yes, all AMG E60 builds had the coolers, because all were Euro spec. All 5.0L 036's worldwide got the cooler EXCEPT for USA and Japan.

    As Klink mentioned, it likely won't open the thermostat to do anything without extended load (i.e., Autobahn, Silver State Classic, or extreme ambient temps).


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  9. #6
    Senior Member Jord's Avatar
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    Re: Oil cooler options

    This is for the turbo car. I'm sure it'll open lol.



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  11. #7
    Senior Member Jord's Avatar
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    Re: Oil cooler options

    But if I drill the holes out the oil will circulate and not just fill the cooler and sit due to equal pressure pressure?

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    Re: Oil cooler options

    Quote Originally Posted by Jord View Post
    But if I drill the holes out the oil will circulate and not just fill the cooler and sit due to equal pressure pressure?

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    I'm not certain, but I think without the thermostat present, you'll end up with full-time oil cooling... which could result in the oil coming up to temp slowly.

    I've never heard of anyone drilling open the casting areas as you are planning to do, so I'm not sure what will happen. I'm assuming you don't want to s hell out $$$ for the proper housing with thermostat?


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    Re: Oil cooler options

    Quote Originally Posted by gsxr View Post
    I'm not certain, but I think without the thermostat present, you'll end up with full-time oil cooling... which could result in the oil coming up to temp slowly.

    I've never heard of anyone drilling open the casting areas as you are planning to do, so I'm not sure what will happen. I'm assuming you don't want to s hell out $$$ for the proper housing with thermostat?
    No lol. I'd rather build something myself. I live in Florida and have the exhaust running under the oil pan, oil temp rising slowly wouldn't be an issue. This car is the definition of a heat pump lol.

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    Re: Oil cooler options

    Also, I'm tired of the sleeper look. I want to give her some aesthetics, like a visible intercooler, mild drop, the new wheels I have, and an external oil cooler.

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    Re: Oil cooler options

    I'd add a screen over the external oil cooler... don't want a stray rock to punch a hole in it, and dump all your oil out. Especially since MB has no warning light for zero oil pressure, and the low oil level warning doesn't trigger for 60 seconds.


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    Re: Oil cooler options

    That poor E34

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  21. #13
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    Re: Oil cooler options

    I used to run an intercooler exposed on the front of my diesel for two years and never had an issue with debris damaging it. If it happens to the oil cooler then so be it , it was meant to die a tragic death lol.

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    Re: Oil cooler options

    I would think your best bet is to source a used Euro Oil filter housing with the T Stat already inside to ensure proper function. However as Klink has noted the stock setup will see very little (to zero) actual use of the Oil Cooler.

    What I would be very dubious of is the functionality and oil flow if you drill the casting on the current non oil cooler housing. The reason I say this is that I recall seeing holes inside the T Stat bore which means the Oil flow circulation and pressure may not function correctly by simply omitting the T stat. EG: I believe the T Stat has more functions in diverting Oil flow than simply restricting it.

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  24. #15
    Senior Member Jord's Avatar
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    Re: Oil cooler options

    Mkay, I'll keep my eye out for a euro housing then. If I can't find one then worse case scenario is I use the scavenge pump I have laying around to make something. Also, this car produced and stores a lot of heat. Opening the thermostat won't be an issue here in Florida with a turbo V8 all packed into a small car.

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    Re: Oil cooler options

    Shouldn't be too hard to get a euro filter housing. Just for giggles, looked it up. The function description states that the thermostat "opens from an oil temperature of approx. 110deg.C"
    Putting the fun in dysfunction...

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    Re: Oil cooler options

    Quote Originally Posted by Jord View Post
    Also, I'm tired of the sleeper look. I want to give her some aesthetics, like a visible intercooler, mild drop, the new wheels I have, and an external oil cooler.

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    snakeface.jpg
    Putting the fun in dysfunction...

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  30. #18
    Senior Member Jord's Avatar
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    Re: Oil cooler options

    Exactly!
    Quote Originally Posted by Klink View Post
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