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      08-16-2012, 12:03 AM   #66
bigjae1976
Takes threads off topic...daily
 
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Drives: 11 E90 M3 Individual
Join Date: Mar 2006
Location: Milwaukee, WI

Posts: 5,254
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2004 BMW M3  [4.50]
2011 BMW E90 M3  [5.00]
2013 BMW 328i  [5.00]
Quote:
Originally Posted by m3alabama View Post
Cooler IS USUALLY better on engines but not always-and you need to look at the specific engine IMO
I somewhat agree. The issue for oil coolers with no thermostat is the oil never gets warm and you get sludge and poor lubrication. But our cars have a thermostat built into the oil system so not running hot enough will not be an issue.

Our cars need more cooling capacity to be run for extended periods at the track. If your engine isn't overheating, its your tranny, or its your power steering or its your brakes.

Quote:
Originally Posted by roycemek View Post
I'm convinced I need the cooler. I appreciate the OPs comments and review. I was just at California Speedway for an HPDE and ambient temps were in the high 90's to about 105 for most of the day. My oil temps about 10-15 mins into the sessions would climb to about just past middle mark between 210 and 300. That is the point where the idrive would display an excessive heat warning, at which point the DCT would delay shifts and revs would be limited. I tried another session running with the heater on but no luck. At 100+deg ambient temps and agressive driving the stock cooling capacity is being taxed and needs help. Funny someone else mentioned the iPhone overheating too. Mine would only last about 10mins before it shut down and needed to be cooled off.
How much were you shifting? I've found that if I go to 2nd for the slow, tight corners, the oil temps will get significantly higher vrs staying in 3rd.

I agree that I would get more oil cooling capacity if I were regularly tracking the car.
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