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Posted: Wed Jan 21, 2009 1:54 pm
by bradt
On Civics, yes. Or Integras. Pretty much any piece of shit that doesn't deserve them. RX-7s are OK though.

Posted: Wed Jan 21, 2009 2:19 pm
by ChadMK4
My understanding of venting the hood was to allow the heat to escape faster from the engine bay. Heat rises, therefore allowing it resided out the top of the bay is optimal. It's not really an aerodynamics thing as much as a cooling affect for the motor.

I'm willing to bet that if you were to put a temp gauge in the engine bay before and after this you'd see a big difference in bay temp.

This is just my opinion. Everyone has one, like assholes. Everyone has one and they all usually stink... :)

Posted: Wed Jan 21, 2009 2:23 pm
by bradt
It is a cooling thing. I was just explaining how the aerodynamics is what makes it cool more efficiently.

Posted: Wed Jan 21, 2009 3:11 pm
by Zach
ChadMK4 wrote:My understanding of venting the hood was to allow the heat to escape faster from the engine bay. Heat rises, therefore allowing it resided out the top of the bay is optimal. It's not really an aerodynamics thing as much as a cooling affect for the motor.

I'm willing to bet that if you were to put a temp gauge in the engine bay before and after this you'd see a big difference in bay temp.

This is just my opinion. Everyone has one, like assholes. Everyone has one and they all usually stink... :)
yeah thats basically what he's saying. The aerodynamics part is what improves the flow of that stagnant hot air at the top of the bay out the back of the hood.

Posted: Wed Jan 21, 2009 3:17 pm
by bradt
^DING

Posted: Wed Jan 21, 2009 3:20 pm
by Dangerous Drifter Dan
the only benifit is if your standing still. and it allows the hot air to escape. aerodynamically i think your still a bit off. if you wanna be cool pop speed holes in the middle of your hood...

http://www.datsuns.com/Tech/aerodynamic ... ooling.htm

Posted: Wed Jan 21, 2009 3:29 pm
by bradt
This guy explained the idea way better than I could.

"Notice that the location of these louvers are as aft as possible on the hood but prior to the high pressure area near the wipers.This places them in a low pressure area, allowing the hot air in the engine compartment to vacate"

Thats what I was talking about.

Posted: Wed Jan 21, 2009 3:52 pm
by andysapp
This thread needs more of this.

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Posted: Wed Jan 21, 2009 3:53 pm
by bradt
Hell yes! Im gonna buy some on the way back to the house.

Posted: Wed Jan 21, 2009 5:00 pm
by P.Haire
andysapp wrote:This thread needs more of this.

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I NEED SOME!!


you guys are still way off. :wink:

Posted: Wed Jan 21, 2009 5:27 pm
by bradt
lol. You win. Care to enlighten?

Posted: Wed Jan 21, 2009 6:25 pm
by P.Haire
shawn shawn wrote:I love 240atl questions!

Posted: Wed Jan 21, 2009 9:54 pm
by Generz
actually.. a lot of modern cars are designed with underhood air movement in mind.. so this can actually disrupt the smooth movement of air through the engine bay.. ever wonder why the bottom of firewalls are sloped back?

anyways.. it's a great way to get a hood in a 240atl driver's face when they rear end someone because they are texting pr0n to their other buddies.

on s13s.. there are hooks that prevent the movement of the hood in an accident.

not safe. wouldn't do it. if you're going to race a car.. why make it more unsafe?

Posted: Thu Jan 22, 2009 12:31 am
by bradt
decapitation by hood.....

doesnt sound worth it to me.

Posted: Thu Jan 22, 2009 1:33 am
by shawn shawn
Just get a better cooling system and this hood...


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DONE!









What the hell are you kids doing on my lawn?