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jwasbury jwasbury is offline
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Join Date: Jan 2008
Location: Weehawken, NJ
Posts: 3,612
Those temps are high, but not unexpected if the ambient temp is hot. I've seen my CHT in the same range when ambients are 90-100. And that was with me driving rather gently on the highway.

Another data point, on track (where I was into boost WAY more than you'll ever be on the street) most of the CHT data I logged was clustered around 340, with a peak of 377. It was a sunny day with ambient temps in the low to mid 60s. On a 90+ degree day, I have no doubt that I'd be seeing well over 400 CHTs, and that's why I'm not tracking the car in the summer (will do spring and fall events only).

I do plan to monkey with ignition timing just a little, but my ultimate plan to reduce CHT is to add water meth injection.
Current: 1983 911 GT4 Race Car / 1999 Spec Miata / 2000 MB SL500 / 1998 MB E300TD / 1998 BMW R1100RT / 2016 KTM Duke 690
Past: 2009 997 Turbo Cab / 1979 930
Old 08-19-2011, 12:31 PM
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