Go Back   EcoModder Forum > EcoModding > DIY / How-to
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 11-28-2022, 06:57 PM   #61 (permalink)
Master EcoModder
 
Phase's Avatar
 
Join Date: Mar 2022
Location: oregon
Posts: 912

Black Bullet - '19 Hyundai Ioniq Hybrid Blue
Thanks: 1
Thanked 466 Times in 379 Posts
Quote:
Originally Posted by Isaac Zachary View Post
Refelective surfaces reduce radiant heat loss. They do basically nothing for convection heat loss.
so cheapest and best solution is wrap the fiberglass in alumunim? my overall budget for insulation is 100 bucks for my hood. i care about performance and safety

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 11-28-2022, 08:09 PM   #62 (permalink)
High Altitude Hybrid
 
Join Date: Dec 2020
Location: Gunnison, CO
Posts: 1,757

Avalon - '13 Toyota Avalon HV
90 day: 40.45 mpg (US)

Prius - '06 Toyota Prius
Thanks: 932
Thanked 477 Times in 379 Posts
Quote:
Originally Posted by Phase View Post
so cheapest and best solution is wrap the fiberglass in alumunim? my overall budget for insulation is 100 bucks for my hood. i care about performance and safety
I don't know if cheapest and best can go in the same description, but if you mean best bang for buck, then probably yes. The aluminum foil would also help keep air from blowing through the fiberglass, which would also be bad.

The only problem is fiberglass works best when fluffed up. Putting anything on it to hold it down compresses it and makes it lose its R value. Maybe thick aluminum foil could cradle the fiberglass just well enough it stays fluffed up but doesn't fall off the engine.

Mineral wool would be better IMO as it tends to hold its shape better. It is also non-flammable, whereas fiberglass can catch flame after a certain temperature. Of course, if you get any oil on either and you now got a wick.
__________________
  Reply With Quote
Old 11-28-2022, 09:54 PM   #63 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 26,627
Thanks: 7,501
Thanked 8,297 Times in 6,822 Posts
Why not Dynamat or similar?
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________

The best accident is no accident -- Elon Musk
  Reply With Quote
Old 11-28-2022, 10:20 PM   #64 (permalink)
High Altitude Hybrid
 
Join Date: Dec 2020
Location: Gunnison, CO
Posts: 1,757

Avalon - '13 Toyota Avalon HV
90 day: 40.45 mpg (US)

Prius - '06 Toyota Prius
Thanks: 932
Thanked 477 Times in 379 Posts
Quote:
Originally Posted by freebeard View Post
Why not Dynamat or similar?
Looks like Dynamat Dynapads can only withstand temperatures up to 225įF. So you could possibly use them on the engine, but not near the exhaust parts. I'm not sure how well the insulate against heat since their main use case is for noise reduction.
__________________
  Reply With Quote
The Following User Says Thank You to Isaac Zachary For This Useful Post:
freebeard (11-29-2022)
Old 11-29-2022, 10:47 AM   #65 (permalink)
Master EcoModder
 
Join Date: Dec 2010
Location: USA
Posts: 1,156

Sport Utility Prius - '10 Toyota Prius II
90 day: 52.98 mpg (US)

Sequoia - '04 Toyota Sequoia Limited
90 day: 17.51 mpg (US)
Thanks: 348
Thanked 257 Times in 206 Posts
Boys yall are over thinking this. Just slap insulation down and see what you think first. Its $20 for a roll of R-13 and a 4' section that you will use is about $4.
I bet my piece of insulation will last the life of the car no problem from what i see so far. Underhood temps are not that high even in the summer on a v8 car which is typically the worst case scenario.
__________________
"I feel like the bad decisions come into play when you trade too much of your time for money paying for things you can't really afford."
  Reply With Quote
Old 11-29-2022, 02:20 PM   #66 (permalink)
Master EcoModder
 
Phase's Avatar
 
Join Date: Mar 2022
Location: oregon
Posts: 912

Black Bullet - '19 Hyundai Ioniq Hybrid Blue
Thanks: 1
Thanked 466 Times in 379 Posts
Asked my car buddy who works on cars this. Excuse his language. But it got me a bit worried and concerned.

Iím just looking for the safest, most stable and least messy way to insulate the top

If we just flat out ignore prices, whatís the best solution possible? What would an OEM automaker put who specializes in winter vehicles in Alaska do?

What material is not flammable? Apparently fiberglass, mineral wool, and ceramic are all bad now?
Attached Thumbnails
Click image for larger version

Name:	7CFB21BF-06A7-420D-9467-6CBE00584C61.jpg
Views:	35
Size:	23.1 KB
ID:	33050  
  Reply With Quote
Old 11-29-2022, 03:03 PM   #67 (permalink)
aero guerrilla
 
Piwoslaw's Avatar
 
Join Date: Oct 2008
Location: Warsaw, Poland
Posts: 3,672

Svietlana II - '13 Peugeot 308SW e-HDI 6sp
90 day: 58.1 mpg (US)
Thanks: 1,239
Thanked 710 Times in 449 Posts
Something mentioned on EM are... fire blankets.
By definition non-flammable.
But does anyone know the insulation value?
__________________
e∑co∑mod∑ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell


[Old] Piwoslaw's Peugeot 307sw modding thread
  Reply With Quote
Old 11-29-2022, 04:51 PM   #68 (permalink)
High Altitude Hybrid
 
Join Date: Dec 2020
Location: Gunnison, CO
Posts: 1,757

Avalon - '13 Toyota Avalon HV
90 day: 40.45 mpg (US)

Prius - '06 Toyota Prius
Thanks: 932
Thanked 477 Times in 379 Posts
There is a fiberglass material on the top of the Avalon engine under the plastic decorative thingy with the engine displacement written on it.
__________________
  Reply With Quote
Old 11-29-2022, 06:30 PM   #69 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 26,627
Thanks: 7,501
Thanked 8,297 Times in 6,822 Posts
Quote:
Originally Posted by Phase
If we just flat out ignore prices, what’s the best solution possible? What would an OEM automaker put who specializes in winter vehicles in Alaska do?
Do what NASA do -- Hollow glass [vacuum] microspheres.
Quote:
Insulating Painting Additive Ceramic Microspheres
Cenosphere is a lightweight, inert, hollow sphere filled with inert air or gas, typically produced as a byproduct of coal combustion at thermal power plants.
www.seppe.cn/Insulating-Painting-Additive-Ceramic-Microspheres-pd6723479.html
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________

The best accident is no accident -- Elon Musk
  Reply With Quote
Old 11-29-2022, 08:18 PM   #70 (permalink)
High Altitude Hybrid
 
Join Date: Dec 2020
Location: Gunnison, CO
Posts: 1,757

Avalon - '13 Toyota Avalon HV
90 day: 40.45 mpg (US)

Prius - '06 Toyota Prius
Thanks: 932
Thanked 477 Times in 379 Posts
Quote:
Originally Posted by Phase View Post
If we just flat out ignore prices, what’s the best solution possible? What would an OEM automaker put who specializes in winter vehicles in Alaska do?
This:

https://www.amazon.com/Lynn-Manufact...a-870211061173

Take and make a quilt out of this stuff with either foil or space blanket material on both sides. The foil/space blanket will keep oil from wicking into the mineral wool (or ceramic fiber). The mineral wool (CF) will hold its shape and it and the foil will not ignite or melt against the exhaust. Mineral wool also tends to repel water instead of adsorbing it like fiberglass does. Just get it in there in a way that doesn't puncture it so oil doesn't get to it, that would be the trick.

__________________
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com