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I've just never seen it as a problem. After hours of driving on an 85 degree day, the trunk floor is just warm against my hand. It's not warm enough to hurt anything (unless it's ice cream or a frozen pizza) and so it's something I don't even think about. Maybe I'm too forgiving of having a trunk directly above 80% of an exhaust system.
Totally agree. We spent 5 days on a roundabout road trip home after NCM delivery with our two carry-on suitcases in the trunk. Total non-issue. I did put the craft Bourbon in the frunk.
I know for some who use their C8 as a primary vehicle and actually use the rear trunk area as a "traditional trunk" the heat issue is something that may be of concern.... there seems to be plenty of recommended solutions to look into.
The reason why I am making this comment is because someone in the local Corvette club seemed to get irritated with my response when asked since I am a new C8 owner, what plans do I have to address the excessive rear trunk heat.
I simple stated, non-issue... the C8 has no rear trunk, it has been relocated to the front, its called the "frunk".. he then responded back in a rather rude tone of voice.... "Then what the hell is that big space behind the engine?" my response was "That's where you store the Targa Top when it's off, its simply to hot back there for any other usage...."
Well, I installed a heat liner.
"It's a hobby", cars that is, so no worries.
I did not test before and after with thermal readers.
Yet, a seat-of-the-pants comment... there is less heat when parked.
I will write more in the "What did you do to your C8 thread".
Insulation kits will help the heat but if you’re serious about bringing temps down pull the entire exhaust system and ship it to Jet Hot. After its coated and reinstalled you will notice a dramatic difference in temperature.
Someone did a video a couple of years ago where they placed multiple sensors at various locations in the trunk and measured the temperatures as the car was started and then driven. There was variation of temp by location and interestingly after the trunk heated up, it then began cooling down some. Sorry but I don’t have the link.
I installed the heat shield product on the backside of the engine carpet in the rear trunk on my 24. Didn’t really notice much difference. Even checking how mine felt as compared to a friends without the it after a hour and half drive together. They felt the same. I installed GM trunk and frunk cargo mats sometime after that just because I liked them, not to block any heat. Now I am feeling that the rear mat is blocking more heat than the heat shield material did. Even after a 3 1/2 hour drive in 90 plus temperatures. Any9me else with the GM mats notice that?
Yup. Your'e fighting heat loading from the engine bay and sun-load through the deck lid. The only way to get the air temp in the trunk anywhere close to ambient (if that is what one wants) is to get some airlflow through the trunk. In the 70s GM introduced something called Flow Through Ventilation and Astro Ventilation. And, though it was not discussed much, in at least some variants it also include airflow through the trunk space.
As I noted in an earlier post, there already are exhaust vents in the C8 trunk. Need a way to get some airflow into it (if the goal is to get the temperature near ambient).
When I go on trips and have a couple of carry ons in the trunk, by the time we open them at the destination, the clothes feel like they are coming out of the dryer. Nice and toasty. Probably a good way to make sure you're not carrying any unwanted pests back home.
From: Out Where the Buses Don't Run, Eglin AFB/ Niceville FL
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2022 Corvette of the Year Finalist -- Modified
2021 C6 of the Year Winner - Modified
2020 C7 of the Year Finalist -- Modified
2020 C6 of the Year Finalist - Modified
Originally Posted by v1 rot8
I installed the heat shield product on the backside of the engine carpet in the rear trunk on my 24. Didn’t really notice much difference. Even checking how mine felt as compared to a friends without the it after a hour and half drive together. They felt the same. I installed GM trunk and frunk cargo mats sometime after that just because I liked them, not to block any heat. Now I am feeling that the rear mat is blocking more heat than the heat shield material did. Even after a 3 1/2 hour drive in 90 plus temperatures. Any9me else with the GM mats notice that?
I have the same set up. On short trips (under 30 min) the temp stays fairly cool (under 90*). Any more than that there is heat but not enough to damage anything other than frozen goods. I have a Z06 so the exhaust exit point is different than the Stingray so mine may generate more heat on the centre floor area.
But the floor appears still unacceptable reduction.
My belief is the majority of the heat issue is from the OEM muffler.
I revisited my installation and installed a second layer, mainly in the very rear "cubby" over the center muffler with this product
. Shiny side down, the stuck to a R4.2-R8.0 (range) insulation (had this product leftover from home furnace ducting install), then the Home Depot product layered/ placed on top of the R4.2, all are removable.
Will I have the heat reduction success I am chasing? I do not know, but as a hobby $30 in cost and a couple hours was acceptable.
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.
Seems like a reasonable course of action.
