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....as I pointed out earlier in another post. Anyone coming along and reading this needs to realize that the vented hood may be of benefit for keeping the engine bay cooler at shows and on the dyno, however, it could be a disaster in high-speed race situations, due to the fact that you may be pumping air into the engine bay. Careful attention should be paid to the venting. *For racing*, if the venting is poor, then you will likely lose performance even if the manifold temp is cooler, due to the possibly much higher aerodynamic drag. If you do it to the point that you are reducing downforce in the front, then everything starts going bad. My research is showing that a proper airdam at the lip of the spoiler is a better way to go, and this is actually a summer project for moi. You will prevent air from getting under the car, which will create low pressure under the car. There will be high pressure in front of the airdam, at the air inlet to the radiator. The combo of high pressure at the inlet and low pressure underneath the car will then create a strong flow of air through the radiator and out from underneath the car. It should reduce the damming-up of air inside the engine compartment, due to the low pressure area under the car. For maximum cooling, the total solution is a combination of things, because you have to seal the radiator to prevent the air from going anywhere but through the radiator, or you may lose the benefit when the air decides instead to go around the radiator, under the tires, for instance. I will admit that the solution that I point out may not be optimum for show cars, because the cooling that I'm talking about requires air velocity, which is nil when the car is sitting still.
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21:53:27 12/28/02
