Louvers Question (1 Viewer)

[Cruzilla]

i pulled the fan and fuse/relay block from a 97 Camry I also got a spare fan from a 96 Camry and paid 24 bux for all of it.
I then made some custom mounts from aluminum and used the AC pressure switch to control when the fan activates.
Very neat setup and looks like it was a factory install!

 

[mikedamageinc]

The louvers help evacuate air from the engine bay, relieving a high-pressure area and increasing airflow through the radiator. They actually do help your radiator work better, not just for IAT.

Yes and funny I just made that point in a similar thread where someone didn't care about radiator flow but that air has to go somewhere so if you install vents, make sure it is going out the vents and not in.

I was just talking to the stagnant heat in particular that getting that out won't affect engine temp much. With most lifted rigs, and even not, there is enough air going out the bottom, which isn't really ideal but the radiator air is definitely getting out somewhere.

 

[inkpot]

This louvers will enable water to drip on your motor during rain and car wash

You realize that whenever you drive in the rain that the droplets go thru the radiator and the fan scatters it all over the engine bay anyway?

 

[2 E L O]

The PO of my truck installed louvers. He, or whoever he had install them, didn't do a fabulous job in regards to aesthetics. They're not perfectly even from side to side, but they're close enough... No issues with water since I've owned the truck (about 9 months). Lots of rain, snow, ice, automatic car washes, etc.

 

[Golgo13]

I'm down with adding louvers to remove hot air, but I would also like a solution to the radiative heat from the hot parts. I feel like a few extra heat shields/insulators could also help in that department. I have a 3FE that just roasts the LH of the vehicle with all the stock shields in place. More air flow helps cool overall, but blocking off some heat sources can help too.

Ceramic coat everything?

Double-wall exhaust manifold?

Exhaust manifold with integrated heat exchanger?

I bet you could run a winch off thermoelectric converters for all the heat energy that is available

 

[Dirty Koala]

Did all of the above for my supercharger install. I usually run about 190 degrees around town when its 100 degrees out.

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Scott,

Which size louvers did you get from Rod? I am looking to vent out some hot air and his stuff looks nice.

 

[Cruzilla]

I still had the purchase order in my email, here is a Ebay link. I had mine powder coated satin black.

Jeep YJ Tilted Pair of 11 5" Louvered Panels Hood louvers Bolt-on style Vent Kit | eBay

Find many great new & used options and get the best deals for Jeep YJ Tilted Pair of 11 5" Louvered Panels Hood louvers Bolt-on style Vent Kit at the best online prices at eBay! Free shipping for many products!

www.ebay.com

 

[Saito]

Been a couple years since I picked up the louvers from the link posted in this thread. Finally put them on:

Been thinking about air flow in and out of the engine bay too. Anyone wonder if there’s pressure in the PS wheelwell with it being open(where the factory exhaust routes) ? ? Plus, the radiator shroud and fan are mostly on the right side as well . . .same with the exhaust.

Anyway, once it’s all back together I’ll be checking airflow at the vents on both sides with a Kestrel. My 80 isn’t stock at all though. I’m running an electric fan so the DS is far more open. Much easier to remove and replace the S/C belt too. Gotta seal off the PS wheelwell still after routing the exhaust inside the frame. The controller for the fan keeps it right at 195° at idle(but the hood was open). It’ll be interesting to see how it all shakes out. I considered not messing with the vents, but I’m glad they’re on finally.

 

[Cruzilla]

After looking at the paint surrounding the louvers, the left hand side (drivers) has a lot more heat coming out of it. My drivers side paint is a bit hazy behind the louver.. I would have bet the right would have been hotter being above the exhaust.

 

[Saito]

After looking at the paint surrounding the louvers, the left hand side (drivers) has a lot more heat coming out of it. My drivers side paint is a bit hazy behind the louver.. I would have bet the right would have been hotter being above the exhaust.

Think that may be from heat buildup and almost NO airflow ? ? Seems all of the heat is generated and directed to the PS by the fan and exhaust. Idk I do carry an IR temp gun but never used it on the hood. My electric fan runs over a 10° span at 60-100%(at 205° it’ll be maxed).

I’m curious what a straight factory set up w/ louvers pushes out the DS being that the shroud covers much of the radiator on that side.

 

[jjdeneen918]

I haven’t installed yet, so no actual experience with it.

 

[Dirty Koala]

I still had the purchase order in my email, here is a Ebay link. I had mine powder coated satin black.

Jeep YJ Tilted Pair of 11 5" Louvered Panels Hood louvers Bolt-on style Vent Kit | eBay

Find many great new & used options and get the best deals for Jeep YJ Tilted Pair of 11 5" Louvered Panels Hood louvers Bolt-on style Vent Kit at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Thanks. I ordered a pair of these up this morning. Debating whether to get them powder coated or just paint to match.

Also, do you have any pics of your install and under hood shot where the cut was made. I expect these overlap a brace or two based on the length.

 

[Cruzilla]

Think that may be from heat buildup and almost NO airflow ? ? Seems all of the heat is generated and directed to the PS by the fan and exhaust. Idk I do carry an IR temp gun but never used it on the hood. My electric fan runs over a 10° span at 60-100%(at 205° it’ll be maxed).

I’m curious what a straight factory set up w/ louvers pushes out the DS being that the shroud covers much of the radiator on that side.

It would be interesting to see what the temps are per side, you should use your IR gun and measure after a drive in hot weather and compare them.

 

[Cruzilla]

Thanks. I ordered a pair of these up this morning. Debating whether to get them powder coated or just paint to match.

Also, do you have any pics of your install and under hood shot where the cut was made. I expect these overlap a brace or two based on the length.

I just centered the Louvers over the section of the hood that is not braced. I used a 4" hole saw two cut three holes in the section and used a jigsaw to connect them to make one large hole. I had to drill 3/4 inch holes in the braced area to access the lock nuts on the bottom side ( I'm sure it weakened the hood supports but its an accepted risk ) , that way I don't have bolts hanging down into my engine compartment. I also trimmed the factory hood insulation for air flow. If I had to do it over again I would have used nutserts for a more professional look. be very careful using the stainless allen bolts and nuts he provides... they gall up real easy,, and seize.. don't ask how I know! Use anti-seize or tighten slowly.