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Old 02-13-2011, 03:29 PM   #11
S14DB
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Quote:
Originally Posted by hotboiblaze View Post
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.
Yeah, it will let heat out when the car isn't moving. But, will force air in when moving. Fighting the air coming trough the radiator. I'm sure it works great for Drag and drift where you do a quick run and the radiator doesn't heat up. Then cool off in the pits.

Vents in the hood should be behind the radiator and in front of the engine. I have seen a ton of vented hoods for the 240sx over the coil packs or core support. Just because they look cooler there on the out side.

Also, mentioned earlier. Make sure you have a under tray/panel from the front bumper to the subframe/crossmember. As air enters the bumper it will look for the easiest way out. If there is no panel between the bumper and core support it will hit the FMIC/Radiator and go straight down. There is low pressure in the engine bay from the air rushing under it. If you block off the front half from the ground it will suck air through the radiator then out behind the subframe. No panel behind the radiator and you will get air coming up spoiling the low pressure zone.
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