Do vented hoods actually work?

[Def]

Originally Posted by hotboiblaze

this is what ive heard from a lot of ppl that track their cars. however ive also heard (& speak from experience) that @ a stop, ie traffic light & 'pit stop areas'.... vented/raised hoods do help to allow hot air to escape from under the hood.

Just one question... how would an aerodynamic high pressure zone form at the base of your windshield when the car is NOT moving?


So yea, I guess it "vents heat" when you're stopped, but when do you want more cooling when your car is stopped and less when it's moving? Engine running hot as you're creeping to the local hard parking spot?

[dawagarage]

Originally Posted by Def

Just one question... how would an aerodynamic high pressure zone form at the base of your windshield when the car is NOT moving?


So yea, I guess it "vents heat" when you're stopped, but when do you want more cooling when your car is stopped and less when it's moving? Engine running hot as you're creeping to the local hard parking spot?

'when do you want more cooling when your car is stopped' = in the shitty bumper to bumper traffic that LA and san diego provide us with, especially on hot days. im speaking in regards to a dd, non tracked car. on the highways/not in traffic/etc, the inrush of air through the radiator negates the 'base of the windshield' problem.

[S14DB]

Originally Posted by hotboiblaze

on the highways/not in traffic/etc, the inrush of air through the radiator negates the 'base of the windshield' problem.

No, it won't. The pressure in the cowl area is greater then the air in front of the radiator. The airflow through the radiator is reduced.