Laile Under Panel ventilation

[radroach]

Saw this on FB: https://www.facebook.com/14428608359...type=3&theater



Thoughts? Would it help ventilate engine heat better?

[billwot]

That's a solution to a non-existing problem.

[Tcoat]

Anything that moves more air through the compartment will help somewhat.
Of course I can't read the text but I have serious doubts that it will change it from orange to green though.
The designers of the car would probably have included such a system if they felt there was any real advantage. Could be worth a shot if not tooooo pricey.

[wbradley]

Originally Posted by billwot

That's a solution to a non-existing problem.

I disagree. Anyone that has headers, some coated, some wrapped, some bare will attest that it gets hot under there. Especially if you have an HKS V1, Jackson Racing SC or any intake that draws air under the hood.

My installer left the bottom underside plastic panel just aft of the front bumper off due to my deeper than usual intercooler, but I think it might help increase air volume thru the front opening and the bottom (without anything scientific to back this).

There is demand for under hood cooling.

[shiumai]

Is that the same as this?
http://www.kamispeed.com/Beatrush-Al...br.s564000.htm

I agree that there is definitely a demand for under-hood cooling for the FI folk. But I've never seen any under hood temp data to show that the louvered underpanels work. I doubt that they'd do anything in stop and go traffic (where I'd want it). I'd expect hood vents to be the most effective method of allowing heat to escape.

[wbradley]

Originally Posted by shiumai

Is that the same as this?
http://www.kamispeed.com/Beatrush-Al...br.s564000.htm

I agree that there is definitely a demand for under-hood cooling for the FI folk. But I've never seen any under hood temp data to show that the louvered underpanels work. I doubt that they'd do anything in stop and go traffic (where I'd want it). I'd expect hood vents to be the most effective method of allowing heat to escape.

Obviously this is passive cooling for the vehicle when moving. A lot less invasive than hood vents.

[shiumai]

Originally Posted by wbradley

Obviously this is passive cooling for the vehicle when moving. A lot less invasive than hood vents.

Yes, agreed. Still, I wonder how effective it is when moving. I've been considering hood vents but just don't want to cut into my hood.

[humfrz]

Originally Posted by billwot

That's a solution to a non-existing problem.

Now, fess up, there, billwot ........ you're down on that mod, just because you would find it difficult to crawl under your car to change it out ...... then when you're under there, your tri-focals wouldn't focus and there is a good chance you would forget to take the screwdriver under with you ....... and then you could hardly crawl out from under the car and almost pass out when you finally did get stood upright.




humfrz

[billwot]

Originally Posted by humfrz

Now, fess up, there, billwot ........ you're down on that mod, just because you would find it difficult to crawl under your car to change it out ...... then when you're under there, your tri-focals wouldn't focus and there is a good chance you would forget to take the screwdriver under with you ....... and then you could hardly crawl out from under the car and almost pass out when you finally did get stood upright.




humfrz

No, I just never understood why folks obsess about airflow through engine compartment of cars with water-cooled engines. Unless the design airflow is damaged or altered, its just not a problem. Never had any issues with my rear-engine turbo MR2!

BTW...

1) Since my cataract surgeries, I no longer wear bi-focals. (never needed tri-focals)

2) 7 days a week at the gym, including 3 days of yoga, keeps me pretty good at bending down and standing up.

[wbradley]

billwot,

The issue is the stock exhaust manifold has heat shielding all over it, but none of the performance headers do. I don't want to go to the trouble of removing my header after the fact and having it coated. It gets damn hot under the hood.
This compounded with high intake air temps (IAT's) if the car is modified and draws air from under the hood as many FI kits do.

The greater the power, the more the heat.

This would be a a useless mod for a stock engine IMHO.

[Butterman]

For a street car, chances are none of this matters. If you track your car or if you're just a fan boi with a build then you might care.

Compared to a solid skid plate this will provide more front end down force, less drag and better cooling. However, I doubt it's as good as the stock plate because there is negligible cost in forming the metal for good aero and there's no way that Laile can do aero better than Subaru's multi-million dollar aero facility and their team of PHDs in the aero department.

In short, this is better than having a solid skid plate but probably not better than the stock panel and not even close to as good as hood vents.

Source

[soundman98]

i would consider hood vents better, as it would route the air over the car. generally it's better practice to reduce air underneath the car...

[Ernest72]

I have one on my WRX. Never did any testing on engine compartment temps.

For my BRZ, when I put headers on they were rubbing. So while I had the stock one off I banged it out a bit to make room for the spot that was rubbing, and I cut out my own venting like the beatrush one. Again no temps checked.

I like to think it helps.

[sygfrid]

I had one recently installed on my FRS with UEL headers since, compared to stock that has a heat shield, I noticed that the engine bay's a lot hotter even after applying ceramic coating to the headers. With the Laile (Beatrush) under panel, I noticed that the engine bay cools faster after a couple of minutes of parking it.

According from the articles that I've read, its flat bottom design creates low-pressure zone for down force & the vents help channel out the trapped air that causes air resistance at high speeds. With it, you can even push the car to travel faster & while maintaining good stability. Moreover, having a cooler engine bay will extend the shelf life of the rubber & plastic components in it.