Bonnet vents to reduce temps

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JBSTAZ
Posts: 64
Joined: Thu Mar 27, 2014 7:24 am

Bonnet vents to reduce temps

Post by JBSTAZ »

Is there anyone that has 1st hand experience with installing aftermarket vents in the bonnet to allow hot engine bay air to escape??
From my searched they should be fitted a bit behind the radiator line and that raising the rear of the bonnet to allow air to escape is a no no as that is a hi pressure area.

Anyone out there with practical experience that can share their results would be appreciated
Scorpma82
Sigma-Galant Police (Global Mod)
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Location: melbourne

Re: Bonnet vents to reduce temps

Post by Scorpma82 »

what are u running engine wise???

why is it getting so hot that it requires extra engine ventilation?
Built with pride, Driven in anger
Belial
Posts: 140
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Location: Melb West

Re: Bonnet vents to reduce temps

Post by Belial »

Jacking the rear of the bonnet can cause swirl BUT are you going quick enough for that to be an issue?
Do you need cold air in or hot air out??
JBSTAZ
Posts: 64
Joined: Thu Mar 27, 2014 7:24 am

Re: Bonnet vents to reduce temps

Post by JBSTAZ »

Scorpma82 wrote:what are u running engine wise???

why is it getting so hot that it requires extra engine ventilation?
The car is a 390 ATW hp Starion and am trying to reduce under bonnet temps which will help lower inlet manifold temps as well = more power
JBSTAZ
Posts: 64
Joined: Thu Mar 27, 2014 7:24 am

Re: Bonnet vents to reduce temps

Post by JBSTAZ »

Belial wrote:Jacking the rear of the bonnet can cause swirl BUT are you going quick enough for that to be an issue?
Do you need cold air in or hot air out??
160+ on the track
To reduce engine bay heat one needs to get cool air in and hot air out and logic tells me that if I can get the hot air out then there will be more cool air flowing in thru the IC and radiator which will be great.
brendon
Posts: 472
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Location: Rockhampton

Re: Bonnet vents to reduce temps

Post by brendon »

though I can't offer first hand. I find these articles fairly informative:
Part 1: http://www.autospeed.com/cms/A_113176/article.html
Part 2: http://www.autospeed.com/cms/A_113177/article.html
Part 3: http://www.autospeed.com/cms/article.html?&A=113178
83' GJ wagon
82' GK Scorp (Track car)
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JBSTAZ
Posts: 64
Joined: Thu Mar 27, 2014 7:24 am

Re: Bonnet vents to reduce temps

Post by JBSTAZ »

Thanks Brendon Yes I have read them a few weeks ago .
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