JL LIFE letting our JLUR breathe, opening the factory hood vents
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- เผยแพร่เมื่อ 17 ม.ค. 2019
- Cutting open the factory hood vents on our JLUR.
The hood vents on the new JLUR's look great, but was kinda disappointed they were closed. Well in this video, we fix it! - ภาพยนตร์และแอนิเมชัน
Retired Jeep Powertrain Designer here. A little bit of water falling on the engine will do no damage whatsoever. The connectors are much more water tight than you would imagine. They are tested to way beyond what any hood vent would allow in. You could drive around with no hood at all with no problems, I have 2 large hood louvers on my WJ in Michigan. Have had snow piles on the engine, water, rain, mud. No problems at all.
Appreciate the feedback.. I totally agree.... unless ur submerging the engine... u won’t have issues... Iv been pleased with this change.. however I wish I would of cut cleaner looking circles into it but hey 🤷♂️ oh well 😂
Thanks for checking in and watching my friend!
I went off-roading in my JL last week and drove through a few mud puddles. A fair bit of mud sprayed into engine bay and triggered a check engine light. Apparently some mud had gotten on the belt causing it to slip and set of the check engine light. I guess not a huge deal, but I was a little surprised that my Jeep was that sensitive to mud. Is that common in your experience?
This is the best feedback I ever read to help me decide if I was going to do this and now I'm in fact coming to do this
I still didn't do this but I guess I'm about to . I read this comment again I left a year ago and I'm like .... thats solid! Do it . Then I realized I already commented lmfao
I did a similar mod. Used a 3 inch hole saw and punched 3 holes in each vent from the underside. I didn't even take the underhood insulation off. Just went through it as well. Just run the drill backwards while cutting through the insulation. Then forward going through the plastic drip tray of the hood vent. Done in like 15 minutes.
Love this mod. I’m thinking of removing the vents with the mat installed and mark out the openings. Then trim around them keeping most of it in place and only drill holes instead of the entire bottom. Great work.
Honestly wish I would of done it tht way.... just would have looked much cleaner... however this has mod has been great, no issues.. just engine gets dustier the. Before lol.. 🙌 glad to hear I enjoyed the video
Sweet vid. Gotta love the free DIYs
Adrian Murray haha need something to hold me over as I wait for parts hahahahah 🤙
Quick and painless mod video! Awesome video!
Been roughly 1 year since Iv done tht... aside from the extra dust in the engine bay... it’s been holding great... the heat being able to roll out.. has really made a difference... with my skids .... I think it was making my feet sweat.... a lot.. haven’t had toasty feet since I finished this... 😂🙌
Man! Thanks for watching so many of our older videos! 🙌🙌 Thts super awesome and we appreciate it for sure!!!
Dope ass mod man, wish I had a hood with some vents
Cool video. Look forward to more content from your channel.
pra3t0rian glad u enjoyed it! More is coming!! 🤙😂🤙
I was literally wondering this thank you !
Sweet mod. Definitely gotta let them Jeeps breath. Great video unfortunately I can’t unsee the ending 😂🤣 Good stuff buddy
AZ WESTSIDE WHEELERS haha I had pants on! 😂 thanks brother! Always appreciate the click! 🤙
JL LIFE OFFROAD haha thank god. For sure brother #youtuberssupportingyoutubers 👊🏻
100%.... however I CANNOT promise pants will always be on 🤘😂
About the best mod I saw for the JL so far
Not a fan of the JL huh? Lol
Great video 👍. Maybe try by adding 'frogzskin' (or some other off-road mesh filters used for snowmobile intakes. Those are water repellent but let air through 😉). You would need to get your insulation back thought, maybe too late for that lol..
😂 yea, it’s long gone!
But great idea,
This will be my next mod! And looks like we both have the same skin tone so I now know what to use the insulation piece for as well! Hahahahaha
Hahahaha nice! 🤙 Gotta work on tht bod! Thanks for watching!
I added vents on my ZJ and am looking to doing a similar mod if I get a JKU Rubicon I have been eyeballing. On the ZJ (5.2) I have noticed about a 5-15 degree drop in engine temps. With it getting colder here in Ohio, it only gets up to 175-180 at operating temp and that's with a 195 thermostat. I have see no issues with electrical connections, although I did put the vents directly over the exhaust manifolds.
I could also see this mod extending the plastic's and rubber's life under the hood due to the lower heat/faster cooling. How much and does it matter? I have no idea, but everything in my ZJ is extremely brittle after 22 years. Also this should reduce hood flutter.
I think I will try to open up the sides of the water tray to allow more air flow than cutting the bottom off. That should allow for more airflow and still let water drain in a specific spot. I might need to connect a rubber hose to drain the water away from electrical connections or the battery.
It’s worked out great so far with mine... though I haven’t measured the heat change... I know my feet used to sweat like crazy on prolong periods in the Jeep with the motor going... since doing this... tht problem has not reoccurred. I have not had a problem yet with this change... I appreciate you watching and ur comment 🙌
Another great mod: it's free, you get weight savings, and a get to work on your tan! Sound like a WIN!
Haha thanks for watching. U know me... try to keep things funny 😂🤙
Gotta love a functional mod👊
Silly to have em and not use em! 🤙
Does this lower the coolant Temps at all?
I did a ton of research on this subject for the JK and came to the conclusion that if it doesn't help keep the engine cooler, it does at least vent the engine bay. And the loss of the insulation? Hmmmm i guess it's all about as important as a steering stabilizer when you boil it down.
I think the insulation also helps with preventing the paint on the hood from cooking off as well. I think he should trim out the holes and put the insulation back in. Just a thought.
Spoke to one of the designers of the jl... said it’s only for noise dampening.
But ur idea is doable not you choose to do it
Hi. What about a water in engine bay? The right vent exactly above the battery. Did you protect the terminals?
Engine bays are designed to be water resistant... the only time a problem would occur is if both terminals are submerged at the same time...
However if tht concerns you.. I suggest cutting circles in that hood vent to limit and control the openings...
We have gotten a lot of moisture this year.. have not had an issue... also.. hood openings are an old concept for vehicles
Hope this helped.. thanks for watching!
Good job, at least they are not for just looks now.
😉 and let’s not forget the cool factor lol
OK, a couple of years. Any updates or are you still loving them. Have you driven in any rain storms? Thanks, this channel is the best!
Thanks man, I’m glad to hear it. But yes…. This modification…. I haven’t had a single issue with it.. HOWEVER if I could redo this…. I would take a 1inch hole saw and drill out 4-5 holes evenly spaced out on each cover… would still allow heat to escape, but would limit the amount of dust I get under the hood.
But rain, snow, mud… it’s been through it all
@@JLLIFEOFFROAD this is exactly what I am gonna do I just wanted to repaint mine to black because the previous owner painted them an pinkish-red color 😡😡
Okay, it’s been months... what do you think? Still worth cutting out those vents? Any drawbacks? Water leaking in too much?
Haven’t had a single issue... the biggest problem I was having with it closed... my jeep coupled with an engine skid... it would get really hot where the pedals were... my feet would sweat like crazy on any prolong driving... since cutting it open... dramatically.
If I could go back... I would cut smaller holes in the cut out piece.. like 3-4 1.5 inch circles... just to look cleaner... still accomplish the vent for the heat release..
They’re just for looks. The cooling system is designed to work without the extra little bit of heat escaping from the mod.
That’s a lot of heat and when you push these things in high temps with minimal air flow the different vehicle systems compensate elsewhere. For example my alternator stopped charging after 12 hours of trails in 104 peak temp outside. It would charge the battery to 12.6 when it dropped to 12.5. After I let it cool down properly it was back to 13.8-14.2 volts.
Did you take exhaust temperature readings before and after? What engineering principles did you use to understand the air flow under the hood to determine that this modification was going to improve airflow and cooling? Could it be that the air is intended to flow down along the exhaust manifolds to help the cooling? Just curious. Thanks.
I did when I did mine several yrs ago. It’s about a 30°-40° difference once cut. Measuring heat out the top was around 140° before opening and after was about 175°.
The exhaust gets cooled from air under the vehicle. Take a peek and you’ll see.
I did.
Before the Temps would stay around 206 to 208. With highs of 211 before the cooling of the fan would come into effect. And would go as low as 202 with a few 201 once in a while.
With the hood vents open, Temps would hoover 204 to 206 with highs of 209. And when the effects of the fan would kick in Temps would go down to 200, 199 sometimes.
In conclusion. With the vents open, temperatures stayed consistent for longer periods. The fan would have to work less times to cool the engine down. When it did come on to lower the temperature, it would do it in a shorter time period.
Temperatures would lower faster.
Stays at operating temperature consistent for longer periods.
Cools down faster.
I’m interested in doing this mod but I watched a guy analyze the airflow while driving highway speeds. The air gets sucked into the hood from the top like cowl induction and possibly interferes with frontal airflow from the grill. Wish there was an adjustable one closed for highway speeds and open for crawling.
any update on the above mod? do you still keeps it or you go back to factory ?
Still the way I cut it
Bwahahahaha... just saw the ending! 😂 I’ll have to show the wife she can use it for tanning!
Hahahahaha gotta get tht summer bod ready 😎 thanks for watching 🤙
JL LIFE OFFROAD of course bruh! Us JL TH-camrs gotta stick together.
😉 hell yes we do
Nice video I’ve been looking for something like this for my dads ram. Have you had any bad experiences with rain?
The only issue that Iv had with it... it gets very dusty under the hood... granted I live in a desert... but if I could redo it... I’d use a key hole bit and drill several circles into the bottom... allow the venting and trying to keep the dust down... engine problems? None...
And thank you for watching! 🙌🙌🙌
Hey man! Wanted to do this mod too but worried that the passenger side being right over the fuse box and batteries pose possible risk. Driver side, nothing big there really to harm. In Phoenix so not a lot of rain like you but do the occasional drive-thru car wash. Thoughts?
P.S. If I decide to do it I will run some B4 and after of temps. But I am also running the DV8 front wheel wells that already provide a tone of air flow.
If I could go back and redo this… the only change I would do… instrad of cutting out the entire bottom… I’d cut 4 1-2 inch holes to vent through…
Iv had zero problems with this being done… engine bay just gets super dusty
I just had my vents out and I had 2 of the clips from the insulation shield just shatter upon removal.
Oh no! I remember watching jeep informants video... he broke every one. I expected the same... but none of em broke
JL LIFE OFFROAD I’m not worried, I won’t be putting it back on.
So now that it’s been a couple of years how is the good paint holding up? I’m in Colorado so we get a little more rain and snow than you but this is not my daily and is in the garage unless wheeling or camping so the rain is not that big of a concern to me either, I’m worried about the heat and paint. I figured in the winter months I would just put the liner back in if I thought it was running to cold so I don’t want to cut up the liner just yet
Iv not had an issue with doing this… thou my engine bay gets very dusty now… if I could redo it.. I would cut in 4 -5 1” circles in the bottom, rather then cutting out the entire bottom…
@@JLLIFEOFFROAD thank you sir. I get the whole dust thing. I kept the pieces I cut out figured if it don’t work I would just expoxy them back one or buy new ones the thing im most worried about is the paint on the hood, I have the turbo so want to get that heat out but don’t want to bake the hood doing so. Appreciate you.
I talked to one of the jl engineers about that.. he said tht pd is there for 2 reason, route the water to the side and to reduce engine noise.
U can always just cut the pad to match the other holes and maintain most of it in atill.
@@JLLIFEOFFROAD yeah that’s been a thought also, I’m gonna run with out it for a while if the hood seams to be getting hotter than I would like I’ll cut it than if I think to much water is getting in or running to cold I’ll get some winter vents lol
Did you cut holes in the hood liner as well? I assume you did. Cool vid. -Thomas
No... I never put the liner back in... though cutting around the vents would be a simple thing to do with a razor knife.
Did you notice any additional engine noise from that linner being gone?
Nah, This has worked pretty good
What kind of mod will you be doing next to keep that beast under control with all that extra HPs.
😂 we will see what my bank account let’s me
I'm taking the sign of the Zia sun to mean you hail from New Mexico
Yes sir, this is accurate
@@JLLIFEOFFROAD it's a wonderful state in it's own way
Lmao, outside of politics... I love it here.. rocks... space... no real natural disasters.... things don’t melt in the summer...
I grew up in Farmington, you don't have to tell me
How's that tan coming along? Ha ha
It all starts with that base coat 😎
I can see only one problem with this That heat shield that you removed from the hood helps keep the engine heat from baking the paint off the hood The louvers might help keep the paint from baking so it might cancel each other out .Time will tell
Yea, it will. I did in fact speak to one of the jeep engineers before doing this. And did ask him tht question. He told me the only reason tht ‘shield’ was put there was 2 reasons.
1 reduce noise
2 route water from the fake vents from pooling
It seems that if the insulation was only here for noise abatement, they would not have spent time and money adding a foil layer on top.
@@KeithBickford my 2020 JL, doesn’t have the foil backing.. so i dont know.. I’m not sure there would be that much heat difference to make the paint bubble.
Now that you've driven it for quite a while, any problems in the rain?
none, the only "problem" iv gotten is that the engine bay gets pretty dusty now. If I could go back, instead of cutting out the entire bottom portion out. I would have cut several smaller circles into it instead.Just to help keep the dust down.
@@JLLIFEOFFROAD Thanks!
@@JLLIFEOFFROAD Any thoughts to having some type of mesh that could help stop the dust? The dust is the big reason I wouldn't do this mod. It's super dusty on the trails I run.
Maybe drill out smaller circles, compared to the entire insert being cut out
Mmmmmmmint!
🙌 haha thanks for watching! Glad u enjoyed it!
“Fried the alternator because u decided to cut open ur hood? Effing MINT!” 😂
What about water coming in now???
Openings in the hoods of vehicles have been around for decades... the engine is designed to get wet... they are not designed to get submerged. I haven’t had an issue with this..
Hope tht helps some... lemme know if u have more questions
The insulation mat did 2 things. Sound absorbing and protecting the hood paint from engine heat. You are going to have paint failure in a year or two. Little cracks at first...then clearcoat flaking....ecy
Problem is see is the very expensive and already troublesome tipm. Right under the passenger vent bad idea in my opinion what makes you think it needs more cooling the engineers designed it without functioning vents for a reason
I personally don’t see the reasoning behind opening up the vents, the Jeep is designed to dissipate the heat under extreme conditions, also the drip pan was designed to keep water from dumping on the top of motor causing rust and water sitting in electrical connections, etc. even old school muscle cars with shaker hoods had a drain for the water, I see several people doing this mod to their Jeeps without regard for down the road issues of water freely coming into the engine bay through the top just sitting where it’s not suppose to be. If this was a great idea Jeep would have not made a drip pan to divert the water, that’s just stand back scratch your head common sense.
Wrangler JL Mods and Trail Videos same Jeep who designed springs to bow? Same jeep who says u don’t need longer control arms and track bars after lifting? As I mentioned I live in a dry climate and don’t get much rain.. I keep my electrical clean and water sealed.. if I develop a problem ... I’ll let people know.. otherwise I’m gonna enjoy my Jeep 🤷♂️ thanks for watching
JL LIFE OFFROAD not putting you in the stand in a court, lol. If you want to have the water come in and it’s ok with you, then of course go for it, it’s your Jeep. I was pointing out if Jeep thought it was a good idea or any manufactures that have air intakes or holes in the hood to let water come in directly into the engine bay then they would design it that way, common sense wise they put drains on them for a reason. Even where you live and lots of others that are doing this it rains, a lot of water goes through those openings, it would be cool to see with a video cam going down the road in a rainstorm and see exactly how much water goes into and where with momentum it sprays on both sides of the motor, I bet if that vid test took place you would change your mind about opening up the holes. But again not bringing nothing to you just giving my 2 cents.
No worries mark. 🤙 thanks for watching brother...
the upside seems minimal vs the downside exposure
Haven’t had an issue yet... and opening in hoods is also not new idea,
Thanks for taking time to watch and comment
Not smart
What part of ‘let’s do stupid things’ ain’t u getting?? 😂
Seriously thou, I don’t expect everyone to agree with what I do with my jeeps. But when it comes to heat sink in the engine bay... I’d rather have a more efficient way venting the heat out... spending my day out wheeling in 100 degree weather... I’m 100% sold on this decision.
Granted... if I could redo it... I’d go back and cut circular holes in the bottom... just cleaner looking and still accomplish the same thing... thanks for ur input 😉
question when you put the vents back on the hood where they lose?
No, they were the same