Wrapping headers

[Michael]

Just curious is anyone has wrapped their headers (assuming you have them)? I have been pondering how to lower the engine compartment temps to help preserve the various components especially considering how tight everything is in there with low airflow.

[Josh]

Ive debated doing this but never pulled the trigger.
In other applications I have wrapped the headers in it made a dramatic decrease in temps. I would think it would be a step in the right direction.

[Michael]

I have been told on the thug forum that a well respected member/vendor advised against it (at least on a PRV). I was told it caused more problems than it solved so I am not going to do it. I did get some heat barrier sleeve to do the Alternator wiring with as it practically touches the headers.

[Patrick C]

I have been told on the thug forum that a well respected member/vendor advised against it (at least on a PRV). I was told it caused more problems than it solved so I am not going to do it. I did get some heat barrier sleeve to do the Alternator wiring with as it practically touches the headers.

How would wrapping be much different than a ceramic coated exhaust? That creates a thermal barrier as well. I know DPI does ceramic coating as an option on their exhausts.

[Rich_NYS]

I wrapped mine with no regrets...

[bigmac]

Mine have just been wrapped.https://uploads.tapatalk-cdn.com/20191223/a4e437daa6121a2aed2be00fb04cec32.jpg


Sent from my iPhone using Tapatalk

[white out]

There is so much room in the DMC engine bay and small exhaust system that it really isn't necessary, unless you're spending a lot of time in stop and go traffic. But a nice option is ceramic coating the headers to keep temps down.

[WHO1DMC]

I installed a full muffler heat shield wrap. It definitely cuts down on the heat. It makes opening the engine bay at car shows a lot more bearable. But I would ceramic coat instead of wrapping. Not an expert but the research I found wrapped headers reduces the life expectancy.


Dave B.

[David T]

PJ Grady sells a heat shield you install around the cross-over pipe over the transmission to reduce heat to the automatic. He also sells a heat exchanger you can wrap over the oil cooler for the auto trans. Wrapping the exhaust is a low cost alternative to ceramic coating or porcelienizing (sp). The heat wrap will hold water and can cause premature rusting. It will significantly reduce temperatures in the engine compartment. Used often on headers especially if you have a turbo so you keep the exhaust gasses as hot as you can till they are used in the turbo. You see it on the downpipe and a blanket over the turbo. Try to use stainless steel wire to secure it, not ordinary steel wire, it will quickly rust and break.

[micmak]

I have been told on the thug forum that a well respected member/vendor advised against it (at least on a PRV). I was told it caused more problems than it solved so I am not going to do it. I did get some heat barrier sleeve to do the Alternator wiring with as it practically touches the headers.

I had the alternator wires touch against the hot headers resulting in some melting and subsequently, a short. I corrected the wiring and then I wrapped the wiring instead of the headers. I am less concerned with the heat in the engine bay, and more interested in prolonging the life of the headers. Apparently wrapping them, does lower the life expectancy.

......Mike......

[Michael]

I had the alternator wires touch against the hot headers resulting in some melting and subsequently, a short. I corrected the wiring and then I wrapped the wiring instead of the headers. I am less concerned with the heat in the engine bay, and more interested in prolonging the life of the headers. Apparently wrapping them, does lower the life expectancy.

......Mike......

I bought some wire loom heat wrap just for the wiring in that area. I haven't put it on yet but it is on my long winter refresh list.

[micmak]

I bought some wire loom heat wrap just for the wiring in that area. I haven't put it on yet but it is on my long winter refresh list.

Yep, I think it is a smart move.

.....Mike.....

[David T]

Besides the alternator wires you must watch out for the wires to the starter and the single wire running to the oil pressure sender on the left side.