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Old 09-18-2007, 08:06 PM   #1
SilverXJ
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Default Hood vents installed.. finally

I finally got around to installing my hood vents this weekend. They are off a Pontiac GTP of some year. I measured about 10 times before I cut with a skillsaw, which was the most mentally taxing part of the whole thing. They arenít where I wanted them to be initially. I originally wanted them back more and a bit more towards the center, but that didnít work. One, if I put them far out enough a hood brace would be in the way and two if I put them closer to the center they would be right over the throttle body and all its sensors should they ever let water in. These are just too large to sit anywhere else on the hood. So now one is right over the battery and the other over the air filter (which I suppose acts as a CAI under acceleration when it is sucking in enough air). I am using the water shields for now, which I cut to let more air out. Iím probably going to replace them with a flat piece of plastic that is off from the hood about ĹĒ or so to let more air out. They do work too. I noticed a temp drop over the whole trip from PA to VA.

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Old 09-18-2007, 08:10 PM   #2
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Looks good. IMHO you should change that chrome grille out for something else, and you should also de-blue the valve cover and the TB
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Old 09-18-2007, 08:15 PM   #3
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I like blue.. and that little bit of chrome.. besides the chrome holds up better than paint to rocks from the road. Looks too bland with just a body colored grille.
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Old 09-18-2007, 08:17 PM   #4
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Clean work, although i dont really like the look of those vents. I went with the Lebaron vents.
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Old 09-18-2007, 08:18 PM   #5
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this is true, but remember, chrome wont get you home
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Old 09-18-2007, 08:24 PM   #6
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Quote:
Originally Posted by RuggedJeep
Clean work, although i dont really like the look of those vents. I went with the Lebaron vents.
The writeup I looked at for installing used lebaron vents, which fit in the location I wanted originally. I like the look of the GTP vents on the 97+ body... takes some getting use to seeing them in my sight line though.
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Old 09-18-2007, 08:26 PM   #7
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Quote:
Originally Posted by jeepkid05
this is true, but remember, chrome wont get you home
If I need to some how rely on my chrome grille to get me home I have bigger issues to worry about.
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Old 09-18-2007, 09:16 PM   #8
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they look good nice and clean
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Old 09-18-2007, 09:26 PM   #9
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looks real nice
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Old 09-18-2007, 09:45 PM   #10
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Awesome work as always Chris. I still cant bring myself to cut up my hood. One of these days the Hood from the red XJ will be green and holes will be cut.
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Old 09-18-2007, 09:56 PM   #11
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Nice work! How long did it take you?

you have to admire anyone who will willingly cut holes in a place that didn't come there stock.....
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Old 09-18-2007, 10:07 PM   #12
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nice clean job...but i think i would have switched sides
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Old 09-18-2007, 10:14 PM   #13
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Quote:
Originally Posted by Tipsovr
Nice work! How long did it take you?

you have to admire anyone who will willingly cut holes in a place that didn't come there stock.....

I think from like 9am to 1 or 2ish.. with lunch...

Yeah, cutting the hood was definitely a mental hurdle to get over. Body work is the one thing I don't do... yet.
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Old 09-18-2007, 10:14 PM   #14
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Originally Posted by IntrepidXJ
nice clean job...but i think i would have switched sides
What do you mean?
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Old 09-18-2007, 10:52 PM   #15
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He would have left the air flow the same direction but the forward most point of the vent would be to the outside of the vehicle instead of the inside. Basically leave them same direction but put the driver side on the pass and pass on the driver side.
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Old 09-18-2007, 11:11 PM   #16
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Quote:
Originally Posted by jeepkid05
Looks good. IMHO you should change that chrome grille out for something else, and you should also de-blue the valve cover and the TB
I painted my valve cover the Flame Red to match the exterior of my TJ, and it was a vast improvement in the way it looked.

And yes, the primary reason for taking off the valve cover was to replace the leaking gasket, not to repaint it.

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Old 09-19-2007, 02:35 AM   #17
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nice
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Old 09-19-2007, 07:52 AM   #18
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Quote:
Originally Posted by Thomas M
He would have left the air flow the same direction but the forward most point of the vent would be to the outside of the vehicle instead of the inside. Basically leave them same direction but put the driver side on the pass and pass on the driver side.
yep, that's what i meant
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Old 09-19-2007, 08:08 AM   #19
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Not my style, but very good install.
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Old 09-19-2007, 08:54 AM   #20
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youve got some foggy headlamps there....
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Old 09-19-2007, 10:37 AM   #21
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nice man, looks real clean.

Had you ever had any cooling issues?? Or is this just preventative maintenance?
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Old 09-19-2007, 10:40 AM   #22
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i need to do this, i never overheat but i like knowing i can make things cooler under the hood.
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Old 09-19-2007, 10:51 AM   #23
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Hood vents dont prevent you from over heating, honestly im shocked you said you saw a drop in temp because i havent and my vents are larger. I could see heat escaping from the vents which helps alot but definetly not enough to drop engine temp.

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Old 09-19-2007, 11:01 AM   #24
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Ruggeds look more practical and Silvers looks more better aesthetically.

I prolly would have switched sides too though. Make the long line/point on the outside rather than the inside.
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Old 09-19-2007, 11:09 AM   #25
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Rugged, no temp drop? I guess if you never had any temp problems to begin with, it wouldn't drop, because the thermostat wants to keep the motor around 210. But I would imagine that if you did have temp problems, this would help a little.

Before I made a constant fan switch for my 96 XJ I used to have to wheel with the hood cracked to keep the temps down. It helped cool things down to have it cracked. That was when for some reason the electric fan didn't like to kick on. It still doesn't on it's own, but that's why I have a switch for it now.
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Old 09-19-2007, 11:11 AM   #26
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i run at 190 on the hwy with the electric fan off, and 190 on the street with the electric fan on. 210 with the fan and the AC on the hwy/street
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Old 09-19-2007, 11:18 AM   #27
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Actually, until today i have cooling issues when its hot out. The vents havent done much for cooling down the motor. Im gonna be adding a set of flex a lite fans soon. The worst heat is over, so ill probably wait and do it next year.
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Old 09-19-2007, 12:09 PM   #28
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my lebaron vents didn't drop engine temp either....and i didn't expect them too.....my underhood temp does seem lower though, which is what I hoped to accomplish
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Old 09-19-2007, 12:30 PM   #29
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Mine helped keep the temps down. I would constantly pass 210 (halfway to the next line or hotter) before the vents, now I rarely pass 210, and it's fricken hot here!

Doesn't it make sense that if you can get more heat out from around the engine, it will cool more efficiently?
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Old 09-19-2007, 01:14 PM   #30
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Quote:
Originally Posted by sweathog

Doesn't it make sense that if you can get more heat out from around the engine, it will cool more efficiently?
no...the engine is designed to run at a specific temp.....no matter what the surrounding temp
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Old 09-19-2007, 01:24 PM   #31
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i still don't get it.

If it's 125 degrees outside your AC doesn't work as well as when it's 80 degrees outside. Partly because the condensor is surounded by cooler air. So if you suround the engine with cooler air and allow more air to flow in and out of the engine compartment, why doesn't this help the engine run at the normal temperature.

Your right, the engine is designed to run at 210*, I don't expect it to run below that, but vents should help it to run at 210* without going over.
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Old 09-19-2007, 01:50 PM   #32
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with a cooling system in good working order, even without the vents you should run at 210. if it's not, you have a problem with the cooling system, that vents will not fix
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Old 09-19-2007, 02:08 PM   #33
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yes, it's designed to run at 210*, but it's not designed to run headers, larger bore, etc.

Are you saying that if you ran your jeep on the surface of the sun, it would stay at 210*?
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Old 09-19-2007, 02:20 PM   #34
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Quote:
Originally Posted by sweathog
Are you saying that if you ran your jeep on the surface of the sun, it would stay at 210*?
no, but that example is a little extreme and proves nothing.
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Old 09-19-2007, 02:24 PM   #35
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nice work. Very
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