Added some vents.

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operamatt
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Re: Added some vents.

Post by operamatt » Fri Jan 04, 2019 7:03 am

vent placement is crucial on hoods. if it’s places in a high pressure area it won’t do anything. the hood vents must be placed in a low pressure area of the hood to extract heat. it does help that your vents have alittle lip on the front to direct airflow up and over the vents, that should in itself cause a low pressure area for the air to escape.
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retrophit
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Re: Added some vents.

Post by retrophit » Fri Jan 04, 2019 9:32 am

Ultimately, does it matter to performance how hot the engine bay is if the fluid temps (air, oil, water, gas) aren’t any lower?
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texanbrit
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Re: Added some vents.

Post by texanbrit » Fri Jan 04, 2019 12:12 pm

I believe so.

It will help the engine not get heat soaked. Aalow the intercooler to work effeciently to try to manage IATs etc.

In addition it will help preserve the battery, coils, electronics etc.
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retrophit
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Re: Added some vents.

Post by retrophit » Fri Jan 04, 2019 3:59 pm

I'm not seeing that so far. Not much a difference really. Here are two videos using twine to try to demonstrate airflow. The first is with the water tray off. The second is with the water tray on. Speeds were't high, but were typical of how I drive.

No Tray
https://www.youtube.com/watch?v=DL5MOzr4Qhw
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operamatt
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Re: Added some vents.

Post by operamatt » Sun Jan 06, 2019 12:25 am

i drove the car today and set my obd-II gauge to show intake temps. i removed the rain shield and allowed to vents to be open. i experience a 20 degree drop in intake temps just driving around and pushing it a bit.
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Re: Added some vents.

Post by MadFiat » Sun Jan 06, 2019 4:56 am

operamatt wrote: Sun Jan 06, 2019 12:25 am i drove the car today and set my obd-II gauge to show intake temps. i removed the rain shield and allowed to vents to be open. i experience a 20 degree drop in intake temps just driving around and pushing it a bit.
That's pretty significant and should be worth some herspers.
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