Quote:
Originally Posted by ChrisSlicks
270 is not bad, but the Z06 has a dry sump with a ton of oil and an oil cooler. The stock C6 does not have an oil cooler, and will regularly see temps well beyond 300F on track. Push it really hard for 25 minutes and you can hit overheat limp mode (from water temp not oil), but at least it gets that far. I've seen several LS engines come apart from track abuse, most typical failure is spun rod bearings but I've seen catastrophic failures as well. Bottom line is if you track, make sure you have adequate cooling, that is if your car wasn't already track ready like the Z06 *cough* Nismo.
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That 273* was a warm-up lap and 1 hot-lap on the 2.2 mile course. It was 101* ambient according to the vehicle display by the the A/C (which is on the whole time in all the cars, day after day, mile after mile.)
Bearing material is bearing material and synthetic oil is synthetic oil, by and large.
220-240* oil temps from driving your car spiritedly or in traffic are nothing to whine about. I fully agree/understand the complaints from those hitting limp mode at the track, but people who just randomly pick a temperature to start bitching at...wtf?