Louvers for air-flow

[Justin Lee]

Lately I have been seeing more and more vehicles on the highway with the louvers cut into the fenders towards the windshield. This makes really good sense when you think about it. The cool air enters the front of the vehicle and cools the engine compartment, but then that heated air has to find somewhere to exit. I assume, that since there is undisturbed air, somewhat, underneath the vehicle, and channeled air over the vehicle, that this air would just circle until it finds an exit. With these louvers, the heated air immediately escapes and cool air replaces it. Sounds like a good plan to me. Also, what effects, if any, does this have on wind resistance? So my questions:

1. What do ya'll think of these louvers?

2. Is this relevant at the generally low operating speeds of off-roading?

3. Can this have any positive affect on particulate traveling through the engine compartment, by-passing the air box.

 

[Jason Harris]

I have ran hood louvers on several vehicles over the years with great luck I recently added them to my land cruiser and achieved the desired results. I used run cool brand hood louvers. I made a video of the install and put it under Ozark mountain adventures on YouTube

 

[Jason Harris]

I have ran hood louvers on several vehicles over the years with great luck I recently added them to my land cruiser and achieved the desired results. I used run cool brand hood louvers. I made a video of the install and put it under Ozark mountain adventures on YouTube

 

[Justin Lee]

That is pretty awesome Jason. I get the hood scoop/louvers, but these louvers I'm seeing are angled to remove that air and keep it moving. It always amazes me what engineers come up with when developing vehicles. Its a lot like aircraft, we have come literally light years since the Wright brothers flew the first aircraft. Thank you for the video, it is very informative.

 

[Jason Harris]

Easier to get air in if air can get out the high flow version of the run cool louvers have always done the trick for me thanks for watching

 

[Jim SoG]

I am planning on a set for my Liberty, I read for liberty, to remove the rubber seal at the firewall for the hood, this allows heat to escape, then louvers......I found sets on the fleabay for under 80 bucks, but they are metal, other than material is there anything special about run cool brand hood louvers that warrant the cost?

Thanks for the video as well, very nice large garage, show off........LOL!

Jim

 

[Jason Harris]

The run cool louvers have the longest fins of any brand I have looked at and more fins per inch so therefore in a given area you can get a bigger hole for air to escape from. I always opt for the high flow version for that reason to me that is worth the extra cost and they have proven themselves to me in the past so I will keep going back to them. My two cents

 

[Steve]

Simply adding louvers doesn't always work as planned. I'd imagine the factory designs have had airflow studies done.

I have another (older) vehicle that has vents in the top rear of the fenders, with scoops underneath to siphon the air out of the engine compartment. However, recent studies have shown that the factory vents are actually in the back-pressure area in front of the windscreen. So instead of evacuating hot air, they are forcing it back into the engine compartment. Oops.

 

[Jason Harris]

Very interesting

 

[9Mike2]

I am getting ready to install a Poison Spyder louver on the hood of my JKU. I am always watch the temp gauge when crawling. You could also look into the holes in your wheel wells , but it should have a screen over it to keep low flying birds and rocks from going into your engine compartment. A member on the KL website Cherokee, put one of the Poison Spyder louvers on his Trailhawk, another member is looking to do the holes and screen in the wheel well