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Wrap Exhaust with header wrap?

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Old 03-13-2024, 07:26 AM
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Dugout34
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Default 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?
Old 03-13-2024, 10:22 AM
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Red86Cfour
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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.
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Dcasole (03-13-2024)
Old 03-13-2024, 12:31 PM
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inspectorudy
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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.
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Old 03-13-2024, 01:23 PM
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Dcasole
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Originally Posted by Red86Cfour
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.
^^^^^^^^^^^^^^^ This ^^^^^^^^^^^^^

The same goes for these starter blankets ... you need to use a shield to reflect. heat

Dave
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Red86Cfour (03-13-2024)
Old 03-13-2024, 09:00 PM
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Vetteman Jack
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Originally Posted by Red86Cfour
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.
A lot of work for very little gain.
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Red86Cfour (03-14-2024)

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