Sponsored

My 392 is hot. Literally.

CorvZ061

Well-Known Member
First Name
Travis
Joined
Jul 12, 2021
Threads
7
Messages
186
Reaction score
354
Location
Ga
Vehicle(s)
2020 Wrangler
Yep, had a buddy with a 68 with sidepipes. Burned the back of my ankle something fierce! gettting out of it. Damn, that hurt! Still have a scar after 25 years.
my wife and I both bear that scar. I remember when I got mine. I had been working on the car, got it running clean without breaking up at 6500 rpm. just got back home from taking a neighbor for a ride. I told him to be careful getting out to not burn his leg and immediately burned my leg after that.
Sponsored

 

RubICON1

Well-Known Member
Joined
May 7, 2019
Threads
11
Messages
126
Reaction score
170
Location
TN
Vehicle(s)
1992,2011,2014,2022 RubICON
my wife and I both bear that scar. I remember when I got mine. I had been working on the car, got it running clean without breaking up at 6500 rpm. just got back home from taking a neighbor for a ride. I told him to be careful getting out to not burn his leg and immediately burned my leg after that.
LOL. He drove me to Arbys and the bastard never gave me any warning. Pushed the door open stepped out stood up and holy Shiiit.
 

roaniecowpony

Well-Known Member
Joined
Dec 4, 2018
Threads
128
Messages
6,013
Reaction score
7,442
Location
SoCal
Vehicle(s)
2018 JLUR, 14 GMC 1500 CC All TERRAIN
Occupation
Retired Engineer
Another slightly different material

 

areuriding

Well-Known Member
First Name
Ken
Joined
Aug 20, 2021
Threads
11
Messages
350
Reaction score
306
Location
Manassas Park Va.
Vehicle(s)
2021 Wrangler Rubicon XR
you can always pull the carpet and add additional heat shielding. It does help a great deal, just be sure to get the good stuff.
 

DaltonGang

Well-Known Member
Joined
Sep 29, 2018
Threads
60
Messages
2,380
Reaction score
3,262
Location
Houston, Tx
Vehicle(s)
2018 Wrangler JLU Sport S, Rubicon Suspension, Tires, and Rims. Firecracker Red
I would add another heat shield, under the cab, above the Cat. Converters. It should be cheaper, and faster than adding a heat shield to the entire cabin floor.
 

Sponsored

OP
OP
JeepVet74

JeepVet74

Well-Known Member
First Name
Jenn
Joined
Jan 30, 2022
Threads
5
Messages
325
Reaction score
1,732
Location
Chattanooga, TN
Vehicle(s)
2020 Mercedes AMG SLC43; 2022 392 XR
I would add another heat shield, under the cab, above the Cat. Converters. It should be cheaper, and faster than adding a heat shield to the entire cabin floor.
I think you’re right. After doing a little research, I think this might be the easiest solution for me.
 

DaltonGang

Well-Known Member
Joined
Sep 29, 2018
Threads
60
Messages
2,380
Reaction score
3,262
Location
Houston, Tx
Vehicle(s)
2018 Wrangler JLU Sport S, Rubicon Suspension, Tires, and Rims. Firecracker Red
I think you’re right. After doing a little research, I think this might be the easiest solution for me.
After a while, and some research, you can always add a good sound deadening/heat shield, to the inside of the cabin floor. Insulation on the hard top ceiling would also cool the inside a lot.
 

Rubi64L

Well-Known Member
Joined
Mar 2, 2022
Threads
12
Messages
293
Reaction score
294
Location
SF Bay Area
Vehicle(s)
2022 Sting Gray 392, 2000 Supercharged WJ
I would add another heat shield, under the cab, above the Cat. Converters. It should be cheaper, and faster than adding a heat shield to the entire cabin floor.
This would be my suggestion, too. If you *really* want to do it right, and you're not in a state like CA which forbids such actions, pull out the stock cats and install hi-flow cats with extra heat shields welded on the top of them. I did this with my Grand Cherokee, and it's worked great. Just make sure you have a heat shield welded on that leaves about 1/2" of airflow between the top of the cat and the shield.

Another option (popular with Vipers) is to use Aerogel shielding wrap. Vipers get stupid hot and the Aerogel really does a great job. Problem with using that on a Jeep is that Aerogel doesn't handle being soaked in water too well. So, that's probably not an option unless you want to re-do it every year or so.
 

Ratbert

Well-Known Member
First Name
John
Joined
Jun 20, 2020
Threads
70
Messages
5,519
Reaction score
6,533
Location
COS region, CO
Vehicle(s)
AEV JL370 JLURD , AMG GLC43
Build Thread
Link
Occupation
Software Engineer
Clubs
 
Is @JeepVet74 the only one that's experiencing this issue? It seems like there are lots of suggestions on how to reduce the associated heat, but I haven't seen posts from others that are in the same boat. It's not even June yet.
 

Sponsored

OP
OP
JeepVet74

JeepVet74

Well-Known Member
First Name
Jenn
Joined
Jan 30, 2022
Threads
5
Messages
325
Reaction score
1,732
Location
Chattanooga, TN
Vehicle(s)
2020 Mercedes AMG SLC43; 2022 392 XR
Is @JeepVet74 the only one that's experiencing this issue? It seems like there are lots of suggestions on how to reduce the associated heat, but I haven't seen posts from others that are in the same boat. It's not even June yet.
I think I figured out what’s going on with mine. I drove it home 2 hours in the hot sun and then drove 5-10 solid minutes straight up our mountain. That, plus the rubber mat on the passenger seat floor acting as an insulator, plus I had an insulated soft-sided lunch cooler sitting right on top of it, made the mat feel really hot. I’ve been checking that mat every time I drive it now and no issues. Not even warm to the touch.
I don’t think there’s an issue but I’ll continue to obsess over it bc that’s who I am. Lol
 
Last edited:

Scott.B

Well-Known Member
First Name
Scott
Joined
Nov 23, 2020
Threads
26
Messages
4,778
Reaction score
7,326
Location
Alaska
Vehicle(s)
2022 JLURD
I think I figured out what’s going on with mine. I drove it home 2 hours in the hot sun and then drove 5 solid minutes straight up our mountain. That, plus the rubber mat on the passenger seat floor acting as an insulator, plus I had an insulated soft-sided lunch cooler sitting right on top of it, made the mat feel really hot. I’ve been checking that mat every time I drive it now and no issues. Not even warm to the touch.
I don’t think there’s an issue but I’ll continue to obsess over it bc that’s who I am. Lol

Nothing wrong with obsessing over it, maybe just take mat out drive and see how it feels on the carpet?

Cool stuff though I grew up in Red Bank, Signal mountain was cool back then we would repel up there before it got built up like it is now. Bonfire parties in Dunlap was not unusual :)
 
OP
OP
JeepVet74

JeepVet74

Well-Known Member
First Name
Jenn
Joined
Jan 30, 2022
Threads
5
Messages
325
Reaction score
1,732
Location
Chattanooga, TN
Vehicle(s)
2020 Mercedes AMG SLC43; 2022 392 XR
Nothing wrong with obsessing over it, maybe just take mat out drive and see how it feels on the carpet?

Cool stuff though I grew up in Red Bank, Signal mountain was cool back then we would repel up there before it got built up like it is now. Bonfire parties in Dunlap was not unusual :)
That’s a great idea. I may do that next time I drive home from Atlanta in the hot sun and then up our mountain. Want to see how it feels without the mat in it.
My first job as a small animal vet was working at the animal hospital in Red Bank. Such a cute area! We live on the back side of Signal (away from the bourgeois) 😂. Short trip and we’re in Dunlap. Man that area is gorgeous!
 

Scott.B

Well-Known Member
First Name
Scott
Joined
Nov 23, 2020
Threads
26
Messages
4,778
Reaction score
7,326
Location
Alaska
Vehicle(s)
2022 JLURD
Down with da Bourgeois!!! :CWL:

Yes it is beautiful, my brother still lives up near Pikeville he got tired of Chattanooga.

Anyway congrats on that beauty you bought!
 

astglenn

Well-Known Member
First Name
Glenn
Joined
Jul 23, 2020
Threads
4
Messages
45
Reaction score
76
Location
California
Vehicle(s)
2019 JLU
I'm not sure this is a problem but just wanting to check with other 392 owners. I drove back from Atlanta this evening (2 hour drive). Easy drive. Ended with a drive up our mountain. Got home and touched the passenger side floor board and that thing was hot! I have rubber Weather Tech mats so I thought maybe the rubber acted as a conductor and made it feel hotter than it really was. But I could barely hold my hand on the mat. No warning lights or anything on the way home.
Anyone else notice this with their 392? Is this normal or is there a problem about to manifest? We're hoping to take this on a 7 hour ride to Florida next month and I'd hate to be stranded somewhere on the way down. Especially somewhere in Alabama :LOL: (I'm just kidding- I lived there for 10 years).
So just for future notes. Rubber has one of the lowest coefficients of thermal conductivity. That goes for heating and cooling. It usually stinks pretty bad before it goes soft. Within reason, its a decent insulator, so long as its not in direct contact with something glowing. Your issue is reflected heat from the exhaust system. I see the same issue. While it may be a less that perfect design issue, it is probably not a worry. I had a 67- 427 L88 Vette that would actually burn bare feet on the foot well. Progress!! American Junk has come a long way and I am a big supporter. I buy it!
Sponsored

 
 



Top