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Originally Posted by jbass524
I've been in an M3 that had to take a cool down lap in the middle of a session in the spring at Laguna Seca. It wasn't hot that day.
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Quote:
Originally Posted by Turkeybaster115
I have pics on this thread of an E90 M3's oil temps at 290F, after 3 laps on an 86 degree day.
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Quote:
Originally Posted by PeterM1
A stock M3 is not a solution either. Agreed though that cooling the N54 for track duty is a more expensive ordeal.
Have a look at the M3 track forum, top thread right now is "Overheating at the track" with overheating reports within a few laps and 80F, and discussions on cooling mods...
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I've tracked a 335 and M3 during the Summer in 95+ degree heat and both have done well for me. One thing I do is not red line it all the time and it seems to help a LOT for engine temps. In the 335 I'd keep the revs to under 6,000 and in the M3 under 7,000 most of the time around a track. If there's a stretch that needs me to stretch to the red, I'll do it, but if it's not necessary to redline, I'll shift a little early.
My tires would get greasy before the engine would overheat. I'm not the fastest in my group, but definitely pass a few groups too.
Having said that, I've seem someone in a 335 go limp with 2-3 hot laps. I don't know if BMW put in lower temp cut off's for limp modes in the newer cars since our 335 is a 2007 model with an Auto/Sport.
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