After installing a new turbo manifold i was thinking of getting some of that heat wrap/exhaust wrap to put around it.

Anyone use this stuff? Noticeable change in the heat coming from the bay or no?

Just wondering if it's worth it or not.

 

I recommend it. I've had it on for about a year now and it's holding up well. definitely makes a difference, keeps the heat in the headers.

 

Have it on my Downpipe and it seems to work great. I an old school hot rodder so maybe thats why I like it and agree it works.

 

Cheap and a great little mod.

 

I've heard that over time it can crack tubular manifolds due to actually keeping in TOO much heat.

 

Bump for some more experienced answers.

 

Wrap it!

 

im probably going to end up wrapping my dp, just cuz its a cheap mod and everyone says its good.

 

True thats the only thing that prevents me from wrapping mine

 

Search, there are a few threads on here about this. I do not believe it is an issue of too much heat, its the heat cycles. The wrap can get the header or tubing very hot and the ambient temperature or water can cause a quick and larger than normal temperature change and crack the tubing. I might be wrong but this is as I understand it.

 

The wrap also retails moisture, which accelerates oxidation when heat is applied. It's just hard to have your cake and eat it too.

 

Coat and wrap for the ultimate in heat retention. Coating the inside will also help to reduce the wear that happends on the header from the exhaust gasses.

I think most people use a silicone spray to reduce water absorption of the wrap.

 

I had my tubular manifold wrapped for about 2 years without any issues. When I finally removed it to have it ceramic coated, it looked fine. No rust or cracks.

 

the negatives of heat wrap is possible but hypothetical only. i havent read or heard even ONE source stating any proof. the positives of wrapping is undeniable. i agree with Del Turbo. i've wrapped the stock cast manifolds for 50 - 60k miles already and i never seen significant increase in surface rust when wrap was removed.

 

Yes it works, and yes it absorbes water making it rust quicker and other things..I would just do down pipe to past cat/test pipe. A buddy of mine wraped his tub. mani. on his sr20 180...wrap caught on fire on the dyno..