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Old Aug 3, 2024 | 02:27 PM
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Default Reducing HTC Trunk Temp

Seen some threads on this, most were dated so I am hoping a better solution exists. Anyone find a good product to help cool down the HTC trunk temp?
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Old Aug 3, 2024 | 02:34 PM
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Originally Posted by Sixgun95
Seen some threads on this, most were dated so I am hoping a better solution exists. Anyone find a good product to help cool down the HTC trunk temp?
Just did mine (coupe) and used stick-on heat shield option used by most. Unaware of any "better" solution available. FWIW, I did the usual layer under the trunk carpet PLUS the airbox cover.
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Old Aug 3, 2024 | 02:37 PM
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I would love a solution like this to cool the rear engine bay when I get home. I pop my Mustang's hood open when I get home.
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Old Aug 3, 2024 | 02:38 PM
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Here is my project + results (with actual data). Two years later and still working exactly as designed.

https://www.corvetteforum.com/forums...for-trunk.html
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Old Aug 3, 2024 | 03:03 PM
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But, how would you channel the air into the engine bay?
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Old Aug 3, 2024 | 03:12 PM
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Originally Posted by thunderstrike
But, how would you channel the air into the engine bay?
Stick it in the driver's side fender duct, that's where the engine bay cooling fan is located.
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Old Aug 3, 2024 | 03:53 PM
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I’m thinking that if I have the downtime maybe the winter removing the entire exhaust system and sending it to Jet Hot for ceramic coating would reduce temps dramatically. Add the shielding and the trunk should be almost bearable
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Old Aug 3, 2024 | 03:55 PM
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Originally Posted by JwT
I’m thinking that if I have the downtime maybe the winter removing the entire exhaust system and sending it to Jet Hot for ceramic coating would reduce temps dramatically. Add the shielding and the trunk should be almost bearable
Ceramic coating the exhaust makes a huge difference. My engine bay temps are lower now with Cerakote titanium ceramic coated headers + cats than when stock.
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Old Aug 3, 2024 | 05:28 PM
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Found this, https://www.heatshieldproducts.com/hp-stealth-shield

Looks like it may be exactly what is needed.

TKO dimensions are 25" x 4.5', a roll of the Stealth is 1/8' thick, 48" x 4.4' on Amazon for $164. Expensive, but if it works, what the heck.

Last edited by Sixgun95; Aug 3, 2024 at 05:42 PM.
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Old Aug 3, 2024 | 10:40 PM
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From one of our SVs:

https://www.corvetteforum.com/forums...m-special.html
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Old Aug 3, 2024 | 10:47 PM
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stick on stuff from amazon …reduced it about 30 degrees


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Old Aug 3, 2024 | 11:28 PM
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^ That should provide some heat relief.
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Old Aug 4, 2024 | 08:42 AM
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Originally Posted by Glen e
stick on stuff from amazon …reduced it about 30 degrees
You have a link to this stuff on Amazon?
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Old Aug 4, 2024 | 09:18 AM
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Originally Posted by Sixgun95
You have a link to this stuff on Amazon?

here it is, BBTO Heat Reflective Sheet Adhesive Backed Aluminized Fiberglass Heat Shield Tape Protection Barrier Heat Shield Resistant Material for Hose and Auto Use Heat Insulation Sheet(Gold, 24 x 48 Inch) https://a.co/d/9hFEDNe
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Old Aug 4, 2024 | 10:32 AM
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two layers

https://www.amazon.com/gp/product/B0C3R1S73H/ref=ppx_yo_dt_b_search_asin_title?ie=UTF 8&psc=1



———————————

https://www.amazon.com/gp/product/B01I3C64ZQ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF 8&th=1


get an applicator roller too….


Last edited by Glen e; Aug 4, 2024 at 05:24 PM.
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Old Aug 4, 2024 | 11:09 AM
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Quote:
Originally Posted by Glen e
stick on stuff from amazon …reduced it about 30 degrees



This is exactly what I did too except the insulation I used was only $ 28.00 on Amazon. It was over an inch thick and the sticky stuff was like tar. Only thing that will clean it off is gasoline and turpentine. My advice is when you remove the trunk make sure you don't lose one of the pop-outs or any of the 20 some screws. Second thing is lay it on the trunk's bottom and mark it with a sharpy because if you peel the paper off the sticky side you will get that stuff all over yourself and once that stuff sticks on the back side of the trunk, it's not movable. But it cut the trunk temp at least 20 degrees and there's U-Tubes showing the whole job. Remember that the trunk is now an inch thicker so when put in all back together so it's a lot tighter to reassemble. Of course that was 3 years ago and it probably costs more now.
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Old Aug 4, 2024 | 11:19 AM
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Wouldn't it be easier to just buy a Porsche?
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Old Aug 4, 2024 | 03:20 PM
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Originally Posted by Mike Campbell
Quote:
Originally Posted by Glen e
stick on stuff from amazon …reduced it about 30 degrees



This is exactly what I did too except the insulation I used was only $ 28.00 on Amazon. It was over an inch thick and the sticky stuff was like tar. Only thing that will clean it off is gasoline and turpentine. My advice is when you remove the trunk make sure you don't lose one of the pop-outs or any of the 20 some screws. Second thing is lay it on the trunk's bottom and mark it with a sharpy because if you peel the paper off the sticky side you will get that stuff all over yourself and once that stuff sticks on the back side of the trunk, it's not movable. But it cut the trunk temp at least 20 degrees and there's U-Tubes showing the whole job. Remember that the trunk is now an inch thicker so when put in all back together so it's a lot tighter to reassemble. Of course that was 3 years ago and it probably costs more now.
A nooob C8 owner here so sorry for the Q's. You took out the trunk shell and put that gold stuff facing the motor or am I not following your methodology.
Thanks for any light thrown my way!

Tom
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Old Aug 4, 2024 | 03:30 PM
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I just bought some self-stick duct insulation at H Depot and installed to the engine side of the trunk panel. Seems to help although I have no data.
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Old Aug 4, 2024 | 03:44 PM
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I'm using the Block It insulation from TKO. I did a short run test on Friday. Ambient temp was 84*. Cold temp in trunk was 86* average from multiple measurement locations. Frunk was same. After a 10 mile trip with engine temp at 168* my trunk temp average was 95*. The frunk was actually hotter at an average of 102*. Car is a 23 Z06 coupe with Z07 package. I plan to do a side by side one hour trip with my car and a similar 24 without the heat shield and I'll post results.
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