Interesting hot spots on trunk - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Interceptor777 · 01-28-2022, 10:10 PM

So it started snowing today and the car got about a half inch of snow on it. Nothing serious.

Took it for a quick spin and when I got back home, I found some interesting hot spots on the trunk which melted the snow in specific spots. Pic attached.

Any ideas why?

Up4speed · 01-28-2022, 10:29 PM

That looks strange. I don't have my car yet, but I'm wondering if the trunk lid frame/bracing has holes, or the design in the bracing at those spots, where the sheet metal is single thickness, so the heat from inside the car radiates, and melts the snow? Just a wild guess without having the car in front of me to examine.

gen3v8 · 01-28-2022, 10:56 PM

The glue that holds the skin to the frame.
edit After seeing the 22model pics below I`m 100% sure now

22 BRZ · 01-28-2022, 10:56 PM

But in all seriousness, never noticed this on mine despite all the snow here - I'm stumped.

22 BRZ · 01-28-2022, 11:08 PM

Ok so I pulled the liner off and the spots are common to these features. I'm not quite sure why they end up warmer. Smaller gap at these 12 places between the two layers somehow equals warmer??? Not sure.

Up4speed · 01-28-2022, 11:22 PM

Quote:

Originally Posted by 22 BRZ

Ok so I pulled the liner off and the spots are common to these features. I'm not quite sure why they end up warmer. Smaller gap at these 12 places between the two layers somehow equals warmer??? Not sure.

Maybe the glue spots, as gen3v8 said?

gen3v8 · 01-29-2022, 12:01 AM

100% the Glue

Up4speed · 01-29-2022, 01:03 AM

I agree

Interceptor777 · 01-29-2022, 01:48 AM

Interesting. It does make sense since the glue probably transfers heat a lot better than the air gap in the rest of the panel.

Sent from my SM-G973U using Tapatalk

timurrrr · 01-29-2022, 03:03 PM

Quote:

Originally Posted by 22 BRZ

Ok so I pulled the liner off and the spots are common to these features. I'm not quite sure why they end up warmer. Smaller gap at these 12 places between the two layers somehow equals warmer??? Not sure.

Different thermal conductivity. The heat of the warm air in the trunk found these thinner spots as a way to escape.

Simmons · 01-29-2022, 08:24 PM

Probably just a ocd cat walked across it. lol

Up4speed · 01-29-2022, 10:51 PM

Quote:

Originally Posted by Simmons

Probably just a ocd cat walked across it. lol

OCD cat hahaha. That's great

Midnightsky · 01-29-2022, 10:56 PM

Quote:

Originally Posted by Simmons

Probably just a ocd cat walked across it. lol

lol I actually had a farm cat jump onto my hood today, thankfully he didn't use his claws.

mike2100 · 01-30-2022, 12:34 AM

maybe it's an easter egg

2 dice that landed on sixes
or a 12 domino

01-28-2022, 10:10 PM	#1
Interceptor777 Senior Member Join Date: Sep 2021 Drives: 2022 BRZ, 1999 "touge-spec" Miata Location: MD Posts: 153 Thanks: 33 Thanked 110 Times in 54 Posts Mentioned: 0 Post(s)	Interesting hot spots on trunk So it started snowing today and the car got about a half inch of snow on it. Nothing serious. Took it for a quick spin and when I got back home, I found some interesting hot spots on the trunk which melted the snow in specific spots. Pic attached. Any ideas why? Attached Images

01-28-2022, 10:56 PM	#3
gen3v8 30 minute maintenance Join Date: Oct 2020 Drives: My18 wrxsti Location: Botany Bay Posts: 1,178 Thanks: 769 Thanked 1,236 Times in 631 Posts Mentioned: 7 Post(s)	The glue that holds the skin to the frame. edit After seeing the 22model pics below I`m 100% sure now Last edited by gen3v8; 01-28-2022 at 11:59 PM.

01-28-2022, 10:56 PM	#4
22 BRZ Senior Member Join Date: Oct 2021 Drives: 2022 Subaru BRZ 6MT IR Location: Canada Posts: 194 Thanks: 55 Thanked 164 Times in 86 Posts Mentioned: 1 Post(s)	But in all seriousness, never noticed this on mine despite all the snow here - I'm stumped. __________________ 2022 BRZed, Red, Base, Manual, Simple

01-28-2022, 11:08 PM	#5
22 BRZ Senior Member Join Date: Oct 2021 Drives: 2022 Subaru BRZ 6MT IR Location: Canada Posts: 194 Thanks: 55 Thanked 164 Times in 86 Posts Mentioned: 1 Post(s)	Ok so I pulled the liner off and the spots are common to these features. I'm not quite sure why they end up warmer. Smaller gap at these 12 places between the two layers somehow equals warmer??? Not sure. Attached Images __________________ 2022 BRZed, Red, Base, Manual, Simple

01-29-2022, 08:24 PM	#11
Simmons Senior Member Join Date: Jun 2012 Drives: 2024 GR86/ 2015 FRS Location: PA Posts: 961 Thanks: 306 Thanked 575 Times in 269 Posts Mentioned: 17 Post(s)	Probably just a ocd cat walked across it. lol __________________ 2024 GR86 71 STR/ 2015 FRS 71 STX Sponsors Xero-Limit//Karcepts

01-28-2022, 10:29 PM	#2
Up4speed Senior Member Join Date: Dec 2021 Drives: 2023 BRZ Limited Location: Long Island Posts: 138 Thanks: 53 Thanked 30 Times in 23 Posts Mentioned: 0 Post(s)	That looks strange. I don't have my car yet, but I'm wondering if the trunk lid frame/bracing has holes, or the design in the bracing at those spots, where the sheet metal is single thickness, so the heat from inside the car radiates, and melts the snow? Just a wild guess without having the car in front of me to examine.

01-29-2022, 12:01 AM	#7
gen3v8 30 minute maintenance Join Date: Oct 2020 Drives: My18 wrxsti Location: Botany Bay Posts: 1,178 Thanks: 769 Thanked 1,236 Times in 631 Posts Mentioned: 7 Post(s)	100% the Glue

01-29-2022, 01:03 AM	#8
Up4speed Senior Member Join Date: Dec 2021 Drives: 2023 BRZ Limited Location: Long Island Posts: 138 Thanks: 53 Thanked 30 Times in 23 Posts Mentioned: 0 Post(s)	I agree

01-29-2022, 01:48 AM	#9
Interceptor777 Senior Member Join Date: Sep 2021 Drives: 2022 BRZ, 1999 "touge-spec" Miata Location: MD Posts: 153 Thanks: 33 Thanked 110 Times in 54 Posts Mentioned: 0 Post(s)	Interesting. It does make sense since the glue probably transfers heat a lot better than the air gap in the rest of the panel. Sent from my SM-G973U using Tapatalk

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