Hrant my car living above 7K RPM's with the CTSC runs cool as a cucumber with my R vented hood. I don't have an oil temp gauge so I don't know where that is but I have never seen my water temp go a single line above normal street driving. You are right, a boatload of heat does come off the vent. Still the NSX runs so cool compared to so many other cars out there. Seperation of engine and radiator is a good design. My turbo supra with a fat intercooler and a big azz turbo had a lot of heat issues. Nothing like having the turbine 2 feet from the radiator....