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      08-14-2011, 07:50 PM   #158
iPhoneEngineer
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Drives: 2007 BMW Z4 M Coupe
Join Date: Jun 2010
Location: La Honda, CA

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Quote:
Originally Posted by Roffle Waffle View Post
My underhood temps aren't too bad, I think the uprated ceramic coating on the headers is doing an amazing job

I do feel that water/meth is really needed though, the car is noticeably weaker when its hot outside
As soon as my kit is sorted out, I am interested in pursuing water/meth. My last of 3 runs on the dyno today lost a full 20RWHP apparently due to heat soak.

I have a habit of leaving my hood open if I get home and oil temps are at 210º (center marker for you ºC guys), or were slightly above that at any point in recent driving. The counterintuitive bit is that engine temperatures can actually rise after shutdown due to cessation of air, coolant, and oil flow so all hot parts just start baking.
Appreciate 0