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post #1 of 39 Old 04-09-2010, 09:33 AM Thread Starter
base shakers
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hood louvers

so the underhood temps in my jeep are getting too high, and i've been roasting components. i'm looking to add hood louvers. the biggest issue is that i run without a windshield a lot on the trail, and i really don't want louvers that direct the underhood heat directly at my face! can anyone recommend a hood louver where i won't have this issue?


'05 LJ, 3"+ lift, 1.25" BL + MML, 35X12.5 Toyo M/Ts on 16" beadlocks, HPD44 and HPD60, 4-speed Atlas
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post #2 of 39 Old 04-09-2010, 09:45 AM
ZachAttack923
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i do not have hood louver my self but as an idea
-place the louvers on the sides of the hood so that the heat is ejected out the sides and away from you.
-also doing a radiator flush and putting in fresh fluid will bring your radiator back to peak performance and help bring temps down. also along the radiator train of though you can swap in an aluminum radiator if you can afford one.
-get the 7 blade HD fan from the stealership
-swap in an electric fan
hopefully that you can find a solution that will get your under hood temps go down and not have hot air dumping on your face

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post #3 of 39 Old 04-09-2010, 10:08 AM
kswyg001
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some guy with a YJ sawpped volvo vents to the side of his hood and he said they work well and look decent too. he's on the forum here somewhere.
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post #4 of 39 Old 04-09-2010, 10:31 AM
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Quote:
Originally Posted by devuurstorm View Post
i do not have hood louver my self but as an idea
-place the louvers on the sides of the hood so that the heat is ejected out the sides and away from you. Oman4x4 did a writeup about placement of the vents, top was best from what he gathered, its all on his website
-also doing a radiator flush and putting in fresh fluid will bring your radiator back to peak performance and help bring temps down. backflush the heater core while you at it also along the radiator train of though you can swap in an aluminum radiator if you can afford one. They come with an aluminum radiator from the factory
-get the 7 blade HD fan from the stealership I heard they discontinued them, may want to look into it
-swap in an electric fan Will only raise temp
hopefully that you can find a solution that will get your under hood temps go down and not have hot air dumping on your face how is hot air dumping on your face without turning on the heater?

a few changes
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post #5 of 39 Old 04-09-2010, 10:36 AM Thread Starter
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i do not have hood louver my self but as an idea
-place the louvers on the sides of the hood so that the heat is ejected out the sides and away from you. Oman4x4 did a writeup about placement of the vents, top was best from what he gathered, its all on his website
i was assuming the top would be best, but i was hoping to find louvers that don't direct the heat straight back

-also doing a radiator flush and putting in fresh fluid will bring your radiator back to peak performance and help bring temps down. backflush the heater core while you at it also along the radiator train of though you can swap in an aluminum radiator if you can afford one. They come with an aluminum radiator from the factory
i just flushed the whole system, engine temps are not the problem

-get the 7 blade HD fan from the stealership I heard they discontinued them, may want to look into it
-swap in an electric fan Will only raise temp
the electric helped with slow speed engine overheating

hopefully that you can find a solution that will get your under hood temps go down and not have hot air dumping on your face how is hot air dumping on your face without turning on the heater?
it could dump heat in my face as i generally wheel without a windshield, and if the vents are near the back of the hood on top the heat could come right at me

'05 LJ, 3"+ lift, 1.25" BL + MML, 35X12.5 Toyo M/Ts on 16" beadlocks, HPD44 and HPD60, 4-speed Atlas
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post #6 of 39 Old 04-09-2010, 01:49 PM
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You could get these (Attwood louvers for example, quite inexpensive)

and put them on the sides.

Top may be better, but this is still far better than none.
Or maybe put them on the top of the hood but as far to the side as you can.
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post #7 of 39 Old 04-09-2010, 05:50 PM
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look at some place like west marine too, small panels for engine compartments.
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post #8 of 39 Old 04-09-2010, 05:54 PM
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Quote:
Originally Posted by BlueFlame View Post
You could get these (Attwood louvers for example, quite inexpensive)

and put them on the sides.

Top may be better, but this is still far better than none.
Or maybe put them on the top of the hood but as far to the side as you can.
Haha marine pieces? Hey they look good and work I guess

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post #9 of 39 Old 04-09-2010, 06:44 PM
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You could try cutting a hole in the fender behind the flare and put some louvers there.. being near the firewall the fan will push the heat out.

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post #10 of 39 Old 04-09-2010, 11:16 PM
tshively
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If you put louvers in and want air flow try a 11 blade (plastic) fan out of a Ford ranger. I used the clutch as well it is off of a 2001 model year and it is approx. 1/2" shorter so it gives me a little more room with a thicker aftermarket 3 row aluminum radiator. I have yet to run it but the test fit this last winter looked like it would work. The flex-a-lite that I have now works good in cool weather but I am afraid that when summer gets here it will not pull enough air through the 3-row radiator??
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post #11 of 39 Old 04-10-2010, 02:37 AM
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You sure you need a 3 row? Seems a little over kill if you get a good quality radiator..

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post #12 of 39 Old 04-10-2010, 05:36 AM
tjdriver
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i have a hood louvre panel on my heep from a2z fab. awesome panel and works great on the trail and around town. i dunno if i'm allowed to post pics or not but i'll try.
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post #13 of 39 Old 04-10-2010, 05:56 AM
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Just triple core and be done with it, why waste time with louvers. And if a triple core radiator with the stock fan isnt enough, you have other issues you need to address.

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post #14 of 39 Old 04-10-2010, 06:55 AM
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since you have an electric fan. Consider having a switch that reverses the polarity to the motor. Then when your stopped of crawling. You can blow the heat out of the front.
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post #15 of 39 Old 04-10-2010, 06:56 AM
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its not the engine that is overheating, read his original post. He is cooking other components, so its underhood temps that he is worried about, not the radiators ability to take care of the engine heat.
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