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      06-08-2011, 11:56 PM   #24
M3 Adjuster
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Drives: 1M, X1 M Sport, E46 325ic
Join Date: Mar 2008
Location: Dallas, Tx

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Quote:
Originally Posted by nachob View Post
Guys, I'm not an M3 troll..you guys can tell that I am doing everything possible to get a 1M over an M3 BUT I am a car guy and actually have worked a few years in an IMSA GTP Dyno and test department and I can tell you with absolute certainty that heat DOES affect peformance. That is why there are big intercoolers on these cars to cool the intake charge. If the outside air is hot, the intercoolers cannot cool the charge. It is a very simple concept. So as an impartial guy, just thought I would mention it before you start a war over something so basic. The interesting thing is that hot air will also affect NA cars. The one advantage turbos have is that hot air is less dense which is why NA cars lose a little power. Turbos can compensate a bit because thinner air gives less resistance to the turbo impeller so it can spin faster and make up for some of the loss of volume, hence making up for the loss of density. As long as the engine can keep from detonating by cooling the air charge with extra fuel, theoretically, the turbo car should do a little better. Once detonation begins due to the heated air charge, the timing will retard and you will lose power. Anyway, just thought I would throw that out there.

Seeing as two of the three normally aspirated models overheated... where as the turbo car lost a little torque.... that's not a great showing for the normally aspirated motors anyway.. I'm not a fan of one motor over the other... I'm just sayin...
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