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Exhaust shrouds melting

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Old Sep 11, 2019 | 05:09 PM
  #1  
REXTurboS's Avatar
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Exhaust shrouds melting

The OEM shrouds around my Racing Beat exhaust tips are melting and dripping onto the tips. This occurred after a long track day where it was 90+ F outside. I don't have a cat either, so I'm sure some fire ***** were shooting from the back likely contributing to this.

I saw some metal plates on my google search that look like they stink onto the plastic, but they don't look good.

Does anyone know of any feasible solutions?
Thanks.
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Old Sep 11, 2019 | 05:22 PM
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Maybe cut away the plastic to fit some big truck chrome tips you could fabricate to fit.
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Old Sep 11, 2019 | 07:21 PM
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Here’s a dumb idea; just pull the shrouds for track events or maybe have a 2nd pair of shrouds with the inner part cut out that you can swap in/out if you think that’s too goofy looking

which just go buy a new set for the street and chop up those melted ones for the second set

of course the issue in general is sooner or later the material hardens from heat and the tabs eventually get brittle and break off. I’ve spent a small fortune on just this one part alone over the last 14 years, but part of my problem is they get broken or torn off gobbling up pylon cones
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Old Sep 12, 2019 | 07:37 AM
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Originally Posted by TeamRX8
Here’s a dumb idea; just pull the shrouds for track events or maybe have a 2nd pair of shrouds with the inner part cut out that you can swap in/out if you think that’s too goofy looking

which just go buy a new set for the street and chop up those melted ones for the second set

of course the issue in general is sooner or later the material hardens from heat and the tabs eventually get brittle and break off. I’ve spent a small fortune on just this one part alone over the last 14 years, but part of my problem is they get broken or torn off gobbling up pylon cones


Yeah, I thought about buying a second pair and swapping them out with the melted/beat up/chopped up pair at each track event.
I'm thinking I may need to keep the shrouds there since I'm sure the melting occurs when I'm pitted as the heat emanated upwards which may melt the bumper instead, and these shrouds sure are cheaper than a new bumper.
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Old Sep 15, 2019 | 04:05 PM
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The bumper doesn’t melt so easily; thicker and different material.

The smart thing to do is get rid of the flashy tips and use straight tube instead, which will allow more room for air to flow around them and also distance the heat source from the plastic. This is why I have dual 2.5” OD tubes and not 4” OD tips. It’d also allow them to to have some header wrap put on easily if it still has an issue, but I suspect that’d probably suffice.

Last edited by TeamRX8; Sep 15, 2019 at 04:07 PM.
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