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Old 07-11-2019, 01:49 PM   #11
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Probably do equally well, or even better, to put the wrap or other high-temp insulation on the box rather than the exhaust tube.


Or stick a piece of sheet metal in between as a heat shield. We see those all the time on/near catalytic converters and mufflers - no insulation at all.


On second thought, take a closer look at that picture. It looks as if the exhaust "tip" (can we call it that?) is joined to the exhaust tube about 1.5 feet back from the exit, and there's some air gap in there. The exhaust flowing past that gap will create suction and draw ambient air in at that point. It'll mix and the gases exiting at the tip will be cooler. I'll bet the exhaust tip is cool enough that nothing more is needed. Run it hard and then splash some water on the metal. Does it sizzle? Wet a finger and quickly touch the metal. Did you feel any heat?
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Old 07-11-2019, 02:16 PM   #12
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Originally Posted by o1marc View Post
What's the temp surrounding the pipe? Or are you just guessing at fixes that may not be needed?

No, Marc. I'm providing a potential solution IF the temperatures surrounding the pipe and the items he's planning to place in proximity require it. It's up to the OP to decide if they do. The very fact he posted the question suggests that he's concerned about heat. So a heat-mitigating solution seemed to be of value.

Contrast that to your assertion of "I doubt heat from the pipe will be an issue", without any idea of what the temps are, how close he was mounting the items in question, or what the items were composed of. And assertion which, ironically if not surprisingly, is exactly what you're accusing me of providing... an uneducated guess.
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Old 07-11-2019, 02:17 PM   #13
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Originally Posted by family wagon View Post
Probably do equally well, or even better, to put the wrap or other high-temp insulation on the box rather than the exhaust tube.

Or stick a piece of sheet metal in between as a heat shield. We see those all the time on/near catalytic converters and mufflers - no insulation at all.

On second thought, take a closer look at that picture. It looks as if the exhaust "tip" (can we call it that?) is joined to the exhaust tube about 1.5 feet back from the exit, and there's some air gap in there. The exhaust flowing past that gap will create suction and draw ambient air in at that point. It'll mix and the gases exiting at the tip will be cooler. I'll bet the exhaust tip is cool enough that nothing more is needed. Run it hard and then splash some water on the metal. Does it sizzle? Wet a finger and quickly touch the metal. Did you feel any heat?

Best answer yet.
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Old 07-11-2019, 05:12 PM   #14
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My exhaust runs about 1.5" under the black tank and the tank is plastic. 11,000 miles so far and no problems.
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Old 07-11-2019, 06:04 PM   #15
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My factory exhaust runs parallel to the back of the storage box about 6" behind it. How close do you want to mount your box ?
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