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Old 06-06-2014, 07:38 AM   #1
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Question Poison Spider hood louver/vent

Any tips or tricks on installing one of these ?

Seems pretty straight forward based on the instructions online.
Just wondering if anyone that has installed one of these has ran into any issues and can provide any heads up info for the install.

The instructions say to remove the hood but I am tempted to try cutting it with the hood on. Anyone else try this ?



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Old 06-06-2014, 07:44 AM   #2
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I bought and installed mine last week. In my opinion you need it off to make precise cuts!
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Old 06-06-2014, 01:01 PM   #3
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Tips and tricks from the manufacture.
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Old 06-06-2014, 01:05 PM   #4
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I would recommend taking it off.. That way you don't worry about metal shavings getting into anything you don't want them in.. Hardest part was to actually start cutting the hood.. I do recommend painting all the holes you cut.. No matter where you live.. IT will rust if you don't..
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Old 06-06-2014, 01:17 PM   #5
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Def take the hood off. It only takes minutes to remove anyways. Be careful tightening the hardware they provide. I've installed several of these and the tiny bolts tend to strip or break. They provide some extras but on the last install I did we used every single extra.
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Old 06-06-2014, 07:08 PM   #6
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Hood

Yeah, for sure remove the hood. All posts above are right about everything. My wife flipped out when she saw me cutting it up, but she was ok with the finished job. And yes it does let heat out, can see the heat waves coming out in the winter, rain and snow no problems.
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Old 06-06-2014, 07:56 PM   #7
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I would it would also let rain in.
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Old 06-06-2014, 09:59 PM   #8
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Thank you for all the info.

Sounds like the consensus is to remove the hood before cutting so I will go that route.

Thanks !


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Old 06-07-2014, 03:42 PM   #9
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My brother in law called me over to do the cutting on his hood while he nervously watched. Not a hard install, once you get over the fact your cutting a perfectly good hood.
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Old 06-07-2014, 05:14 PM   #10
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Tips and tricks from the manufacture.
Thank you for posting this. I intend on ordering one next weekend, so this should help.
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Old 06-07-2014, 05:59 PM   #11
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Took me about two hours from start to finish. Instructions are clear, just follow them and you'll be good. Oh yeah, just take the hood off.
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Old 06-07-2014, 09:02 PM   #12
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Make sure to line up Windshield Wash nozzle holes...if you're off even a MM or 2 it don't snap back in.
Spray paint the cuts to prevent rust.
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Old 02-18-2015, 08:10 PM   #13
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Anyone have issues with rain water getting into the engine bay after installation? I love the look and functionality.
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Old 02-18-2015, 09:10 PM   #14
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Anyone have issues with rain water getting into the engine bay after installation? I love the look and functionality.
I would not want the water dropping on my motor.
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Old 02-18-2015, 09:19 PM   #15
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I've read in other posts that it is not really effective in reducing engine temperature at all, just the air under the hood. Any opinions here? I don't want to cut my hood up if it won't provide a tangible benefit.
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Old 02-18-2015, 09:25 PM   #16
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Anyone have issues with rain water getting into the engine bay after installation? I love the look and functionality.
It's just rain? The entire underside of engine is open water gets in there all the time. The heat of the engine cooks any water off quickly.
No issues here. Really helps with heat soak.
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Old 02-19-2015, 08:09 AM   #17
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I didn't remove the hood when I installed hood louvers. I put a plastic tarp over the engine bay to keep the filings out.

Rain water doesn't affect me at all, whether parked or not. I've heard some folks even purposely spray water on their engines to wash them.

And yes, the engine coolant system still maintains the ideal 210F on mine. That's wasn't my intention since I don't have an overheating cooling system. But my underhood temps have fallen significantly, which I'll bet does some good to the operating computers, fuel system, hoses, belts and whatever else doesn't like excessive heat, and me too since I can now lift my hood without gloves on.
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Old 02-19-2015, 03:24 PM   #18
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I'll add this. I have noticed that my underhood temps are less. The hood is cool to the touch, but more importantly I have noticed that my oil pressure no longer drops to zero after installing. I bought a Mopar sending unit, and it helped except for long drives at constant speeds, where it would drop to zero coming to rest at stop signs or traffic signals. Since the install my pressure stays constant.

I also removed the hood and placed on saw horses. I removed and installed the hood by myself, and I believe the install took about 1.5 hours start to finish. I did not time it....
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Old 02-20-2015, 02:31 PM   #19
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A friend bought one and installed it a different way....

He installed it just for looks:

So he placed it on the hood, then replaced the footman loop and windshield bumpers holding it in place.

Drilled all the mounting holes, bottom, top, each side...putting on the hardware as he went. Everything was tighten at the end.

It came out Perfect.

After six months he decided he would make it functional, so he removed it and cut the hood.

He went about it the long way....but everything turned out perfect and he never used the template. BTW... He really hasn't seen that much of a difference with water or heat.

One is on my list to get, but I'll follow the vid instructions!!!!!!
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Old 02-20-2015, 08:58 PM   #20
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I did mine a couple weeks ago. Make sure you have a good hole saw with a longer guide bit than normal, After cutting all 20 holes I just used a soap stone and a straight edge to mark my cuts. I used a jig saw and used my fingers to keep the saw off the hood surface to minimize vibrating. I did put touch up paint on the large holes, bit not the bolt holes.
BTW- I figured this was a good time to mount my jack on the hood at the same time.
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Old 02-21-2015, 02:56 PM   #21
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I installed mine right after I started this thread.

I installed it per the instructions that came with it.
I removed the hood by myself and cut it sitting on the garage floor.
Super simple install and the hardest part was the first cut one a nice shiny clean hood.

I do notice a lot of heat radiating out the hood louvers. I have not noticed any drop in engine temps and I am not sure this is what it was designed for. I would guess it is more designed for venting the hot air in the engine compartment.

I do notice that my air compressor (under the hood) is not too hot to touch anymore and the other components under the hood feel cooler (still warm but not HOT). It would appear the hood louver is allowing the heat that is built up by the engine to escape out the hood louvers.

We do not have a lot of rain out here but the engines are designed to be able to get wet. In fact, every time I get home from offroading I throw up the hood and hose off the entire engine (cold engine, not hot). Been doing this for years with no problems.

I am glad I did the hood louver and have noticed no ill side effects.


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Old 02-21-2015, 06:13 PM   #22
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I removed the hood and used electric duct shears. Took about 3 minutes to cut. Took longer to drill all the holes.
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Old 02-21-2015, 06:28 PM   #23
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I used a black and decker el cheapo jig saw and it was about 3 minutes as well!
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Old 02-21-2015, 09:51 PM   #24
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Thanks that's exactly the feedback I wanted. I really was not concerned with the water on engine as I spray it down frequently. Just wanted to be sure no other downsides.
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Old 02-21-2015, 09:59 PM   #25
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Not a hard install, once you get over the fact your cutting a perfectly good hood.
This is the gospel right here. Making your first cut, be it hood or fenders is one of the most nervous moments in your Jeeping life. Just keep in mind that if you botch it completely, it's only $125 for a new hood to try again, and maybe $50 to have it painted.

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Old 02-21-2015, 11:48 PM   #26
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What keeps sand and grit from the road from getting between the louvre and the hood?
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Old 02-22-2015, 12:14 AM   #27
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What keeps sand and grit from the road from getting between the louvre and the hood?
What?
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Old 02-22-2015, 09:37 AM   #28
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One thing I have heard about this mod is to not cut the hood over the serpentine belt. Once you cut the hood over the serpentine belt and it rains over night, I live in Oregon, it will make the belts sequel due to being wet. I leave for work at 4:30am, I would have death threats fairly quickly from my neighbors.
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Old 02-22-2015, 09:45 AM   #29
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I would not do this, don't want the engine compartment wet every time its rains.
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Old 02-22-2015, 09:51 AM   #30
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I would not do this, don't want the engine compartment wet every time its rains.
It gets pretty wet every time you drive it in the rain?

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