do heat extractor hoods work?

M

mjk

Member

Jun 22, 2006

87

0

17

NE IL

Aug 16, 2008

#1

• Aug 16, 2008

• #1

HI all

I've been searching around to see if the hood extractor hoods really work. I get the typical heat soak and hate it very much. I have a CAi and a stock (scoopless) GT CS hood on my 07 vert.

My searches did find that I should go with cervini due to their quality, but the main reason why I would get one would be for good ventilation and actual temp drops in traffic and overall.

Is there any one who compared engine bay temps with different hoods? that would be best. I've tried foruma nd google searches...


thanks

 

SpartaPerformance

10 Year Member

Nov 5, 2006

2,517

61

89

Long Island NY

Aug 18, 2008

#2

• Aug 18, 2008

• #2

Like anything performance oriented it works off road....in other words track only for example, if you're looking for cooler temps from a hood sitting in traffic not going to happen. Heat extractor hoods work off of airflow and increased air pressure from engine heat vrs lower air pressure from outside.

 

M

mjk

Member

Jun 22, 2006

87

0

17

NE IL

Aug 19, 2008

#3

• Aug 19, 2008

• #3

tommyroc said:

Like anything performance oriented it works off road....in other words track only for example, if you're looking for cooler temps from a hood sitting in traffic not going to happen. Heat extractor hoods work off of airflow and increased air pressure from engine heat vrs lower air pressure from outside.

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interesting, thank you

 

O

o0Dan0o

Founding Member

Feb 8, 2001

485

1

0

Aug 19, 2008

#4

• Aug 19, 2008

• #4

They should lower underhood temps a bit, at speed like tommy said. Basically, less resistance for incoming air. I've also heard it helps to reduce (if not eliminate) hook shake at high speeds.
Dan

 

kooldawg6

mine works really well and can take a fair amount

Aug 31, 2006

1,679

2

38

Central VA

Aug 20, 2008

#5

• Aug 20, 2008

• #5

One of the reasons they work better while moving is due to the fast moving air flowing over the top of the hood which "pulls" the air out from vents (due to pressure difference). That is why you see just about, if not all, heat extractor hood vents sloped toward the windshield.

 

M

mjk

Member

Jun 22, 2006

87

0

17

NE IL

Aug 20, 2008

#6

• Aug 20, 2008

• #6

thanks for the input everyone

 

C

CutterWolf

New Member

Aug 12, 2008

4

0

0

Aug 20, 2008

#7

• Aug 20, 2008

• #7

Who cares they look cool! LOL! J/K I know mine work when sittin still I have felt the heat coming up out of them.

 

M

mjk

Member

Jun 22, 2006

87

0

17

NE IL

Aug 20, 2008

#8

• Aug 20, 2008

• #8

CutterWolf said:

Who cares they look cool! LOL! J/K I know mine work when sittin still I have felt the heat coming up out of them.

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they do look good, but i like the stock hood too. interesting that u see heat escaping, it must do at least a lil at a stop.