Drivetrain (Cooper S) MINI Cooper S (R53) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

Drivetrain Oil cooler question...

Old Feb 10, 2006 | 11:55 AM
  #1  
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Oil cooler question...

Does the MCS have a stock oil cooler? If so, does it require maintenance?

I'm familiar with oil coolers and their operation, just asking becasue I've not seen one, and, I don't know this particular unit, if it exists...in case you feel the need to laugh
 
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Old Feb 10, 2006 | 12:16 PM
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Yes. The stock cooler uses engine coolant to cool the oil. It's a pretty small piece and is located down by the oil filter canister. It passes coolant (right after the pump and after the radiator) on one side and oil on the other.
 
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Old Feb 10, 2006 | 12:51 PM
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So poor coolant quality might affect its operation?
 
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Old Feb 10, 2006 | 02:19 PM
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Probably. Poor coolant would transfer less heat from the oil.

From what I have read (I think Randy did some tests), for those running 19% pulley's, high oil temps are how you detect cavitation of the water pump. You won't see higher coolant temps but the cavitation will cause the oil cooler to not work as well, thus, causing oil temps to spike at the upper end of the rev band. I haven't heard of any problems with it getting clogged, though. Are you having some issues?
 
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Old Feb 11, 2006 | 04:56 AM
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I think it unlikely the stock oil coooler could have much effect on oil temp spikes for these reasons: it is a tiny heat exchanger; the water side is running at 210 degrees coolant temp against typical oil temps of 230-240 degreees, the entire gizmo is bolted to the block, oil filter housing which will be closer to oil temps anyway. to be effective, you need to remote mount the cooler and heat exhange with cold air.
 
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Old Feb 15, 2006 | 09:27 AM
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hey what do you guys think about capping off the coolant lines going to the oil cooler and installing a seperate heat exchanger along with a pump and new lines?? Can it realy be this easy to do or am I missing something?
 
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Old Feb 15, 2006 | 09:55 AM
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Anybody have one of these?
http://www.mini-madness.com/index.as...ROD&ProdID=219

Jim
 
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Old Feb 15, 2006 | 10:16 AM
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Originally Posted by kapps
Probably. Poor coolant would transfer less heat from the oil.

From what I have read (I think Randy did some tests), for those running 19% pulley's, high oil temps are how you detect cavitation of the water pump. You won't see higher coolant temps but the cavitation will cause the oil cooler to not work as well, thus, causing oil temps to spike at the upper end of the rev band. I haven't heard of any problems with it getting clogged, though. Are you having some issues?

Oil temps are running a litte higher than they did when new. I have the chrono package, so I'm referring to the (idiot) guage. Water temps don't seem to move much, but those things need lots of heat to show any deviation. Oil psi is always in the same range depending on load and oil temps. The oil temps seem to be creeping upward, that's all. not sure I need to worry about this...unless a real oil temp guage proves otherwise. now, I'm not terribly inclined where hooking up remote oil temp units is concerned - any suggestions?
 
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