Wrap Exhaust with header wrap?
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Joined: Aug 2014
Posts: 55
Likes: 9
From: Ontario NY
Wrap Exhaust with header wrap?
Will be installing a new exhaust on our 18 Stingray. Since I'll be under the car installing the new exhaust, I was thinking about wrapping the complete exhaust system with header wrap to help cut down on heat into the cabin.
Has anyone wrapped the exhaust from the collect to the muffler with header wrap?
If you did, did it cutdown on heat in the cabin?
A lot of work for little gain?
Am I missing anything?
Has anyone wrapped the exhaust from the collect to the muffler with header wrap?
If you did, did it cutdown on heat in the cabin?
A lot of work for little gain?
Am I missing anything?
Drifting
Joined: Feb 2005
Posts: 1,456
Likes: 173
From: San Jose Ca
You're better off putting a heat shield between the exhaust and what you want to insulate the heat from. Header wrap accelerates cracking of exhaust. If its stainless it doesn't need any wrap anyway as that material keeps the heat in the exhaust fairly well.
Burning Brakes
Joined: Mar 2021
Posts: 998
Likes: 388
From: Tyrone, GA
I built an AC Cobra replica and used heat wrap on the headers and quickly found out that all it did was transfer the heat to another part of the exhaust system. So instead of the headers getting red hot like they are supposed to, the exhaust pipe under your seat gets red hot. In my case, since I had outside exhaust right under the doors, it made them almost too hot to exit over. I see no advantage to their use.
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,727
From: Atlanta GA
The same goes for these starter blankets ... you need to use a shield to reflect. heat
Dave
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A lot of work for very little gain.
Melting Slicks
Joined: Mar 2023
Posts: 2,934
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From: North Coast
Just something else to cover here. Wraps will void most warranties.
Most exhaust and header companies will state no warranties on wrapped parts. Rust and metal fatigue are the prime concerns.
There are right ways to manage heat and wrong ways. Generally you want to shield the car not wrap unless you can’t shield.
Insulate the tunnel vs wrap the pipes is the right way.
Same in racing. Like for the driver you insulate the floor and even heat boots for the driver but you leave the pipes alone as you want to exchange to the air.
Now there are times you may not be able too or just have something poorly engineered you may need some wrap. But use care wrapping everything.
You see even on high end production card they insulate or shield not wrap.
But if your warranty is important don’t wrap. .
Most exhaust and header companies will state no warranties on wrapped parts. Rust and metal fatigue are the prime concerns.
There are right ways to manage heat and wrong ways. Generally you want to shield the car not wrap unless you can’t shield.
Insulate the tunnel vs wrap the pipes is the right way.
Same in racing. Like for the driver you insulate the floor and even heat boots for the driver but you leave the pipes alone as you want to exchange to the air.
Now there are times you may not be able too or just have something poorly engineered you may need some wrap. But use care wrapping everything.
You see even on high end production card they insulate or shield not wrap.
But if your warranty is important don’t wrap. .
Le Mans Master
Joined: Jun 2016
Posts: 5,426
Likes: 3,971
From: Cincinnati, OH
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