JARHEAD-JL
Well-Known Member
- First Name
- Andres
- Joined
- Aug 17, 2020
- Threads
- 5
- Messages
- 164
- Reaction score
- 71
- Location
- Orlando, FL
- Vehicle(s)
- 2021 JLUR
I wonder if we can add the 392 Hood with the Hydro Guide system in our non V8 JLs?
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Speaking of heat... DAAYYYUUMM! That was one scientifically sick burn!Sorry, you are incorrect. I do not want to school you on thermodynamics (Heat, Radiation, Conduction).
But, I will give you some clues; the difference between the paint on the hood and underneath the hood, the energy (Heat source) optimal operating temperature and the entropy of the material involved.
You are free to do what you feel is best for you, each to their own, but please do not claim your mod as scientific fact. It is nothing more than a cool non functional modification.
That kinda rings a bell. Thanks for the add, buddy!IIRC he used Frogzskin.
Always happy to be of some use around here! I've gleaned so much info from you all, so it's a pleasure to return the favor.HUGE “like” to this post! My experience in Florida heat and water is the same. Another concern I have, which stops me from cutting the hood under my Rubicon hood vents, is a bow wave washing over the hood when entering a water crossing with speed and momentum. Besides, as previously stated, my 2.0T ALWAYS operates within normal temperature limits during blazing-hot Florida summer weather.
Well you can combinate any horseshit of thermodynamic variables that you like but I have checked this with engineers at Stellantis (my brother has been an engineer there for 30 years) and it is added for noise reduction. If you don't believe it, go to the Jeep JL accessories catalog and you'll see that if you order a new hood you can also order a "sound insulation pad" which is what this is for.Sorry, you are incorrect. I do not want to school you on thermodynamics (Heat, Radiation, Conduction).
But, I will give you some clues; the difference between the paint on the hood and underneath the hood, the energy (Heat source) optimal operating temperature and the entropy of the material involved.
You are free to do what you feel is best for you, each to their own, but please do not claim your mod as scientific fact. It is nothing more than a cool non functional modification.
No need to get emotional and insulting. It is simple facts at play here.Well you can combinate any horseshit of thermodynamic variables that you like but I have checked this with engineers at Stellantis (my brother has been an engineer there for 30 years) and it is added for noise reduction. If you don't believe it, go to the Jeep JL accessories catalog and you'll see that if you order a new hood you can also order a "sound insulation pad" which is what this is for.
Hell, musclecars didn't even have pads under their hoods. I removed 99% of all vehicles (over 45) sound insulation pads and never had any issues with paint.
So now if you have fed your ego enough, show me an example of where I'm wrong. Actual photo of damage because the pad wasn't there.
It would take some MAJOR re-engineering of the engine bay. The 392 intake is on the driver's side and meets the Hydro Guide system further inward so a lot would have to be relocated.I wonder if we can add the 392 Hood with the Hydro Guide system in our non V8 JLs?
Well without getting too crazy I would say that the insulation is to withstand the environment it's in. Why would they build something that would melt, catch fire or self destruct that goes under a hood?No need to get emotional and insulting. It is simple facts at play here.
Let's say your engineer brother is correct that the hood insulation is only for noise reduction, we then have a problem to solve and that is; why does the "noise reducing" hood insulator material not show any signs of excessive heat, catch fire, melts, etc? Mmmm... It must be that it either absorbs or reflects heat (Energy).
Either way, absorb or reflect, the fact remains that the hood insulation is functionally not only for noise reduction.
It's definitely a reality that there are distinct areas of the engine bay that see both higher and lower temps than what are seen in the water jackets. But under hood heat management has a lot of years of research, through trial and error, to develop and tweak the materials used on and around the ancillaries.Just because your engine water temp is not over temp does not mean all the other electronic components under the hood are not experiencing them.
The radiator and thermostat control the coolant Temps to that 190ish range. Trust me many parts are getting hotter than that!
I've got a new jeep coming in a couple weeks.
I'll use some temp probes I use for testing to compare before / after Temps when I cut holes in my rubicon vent and insulation.