Header wrap?

[alik]

Is it worth it?
Not trying to achieve higher exhaust temps, just have a roll lying around, and, it would be nice to get rid of the silly exhaust manifold cover.

Thanks!

[tasty danish]

It sure makes the engine bay cooler. I haven't messed with it on my miata, but on my rx7 with its sky-high EGT's it's a must, along with a turbo blanket. It pretty much ignited EVERYTHING within 6-10 inches of the turbo. After wrap, I can touch it, bare-handed.

Use hi-temp silicone spray-on sealant, helps keep water out of Yo Wrapz

[miata2fast]

One thing I learned is the metal tubing gets so hot, that it shortens the life of exhaust components. I thought it worked very well however.

[miataspeed2005]

I've had it on my DP for over a year with no ploblems and I haven't melted a heater core hose since.

[chicksdigmiatas]

It lowers underhood temps, do it.

[turotufas]

Do it. I got mines.

[dustinb]

I put it on a friends BEGI divorced gas downpipe. It's been over a year with much lower temps in the engine bay.

[johnmatt]

They're all lying. Don't do it send it to me for disposal

[dustinb]

Make sure you soak it in water before you wrap it, and get some nice metal straps to hold it in place.

[astroboy]

Do it, but don't go too far down on the dp if it is a dd because it will hold moisture and could eventually cause flaking...and it is a waste of wrap out of the engine bay. Soaking is a must before wrapping along with metal straps (or could use hose clamps). I got the black stuff and it has lost all color from changes in temp.

[Oscar]

you guys wrapping stainless downpipes too?

[p51hellfire]

^? why?

[ZX-Tex]

Supposedly wrapping stainless pipes is a big no-no if you want them to last for very long.

[Oscar]

Correct, I'm still on the fence whether or not to wrap my stainless header. I've got about a 50 ft. roll of good header wrap that I'd like to use, but I'm not sure it's a great idea.

[ZX-Tex]

I vaguely remember in some previous thread that Corky or someone with similar experience had seen this happen first-hand with SS and header wrap.

[miata2fast]

I think it does not matter what metal it is. Wrap holds so much heat, that components do not last as long compared to unwraped. I had cracks in my header that I had to have fixed because of the long term use of wrap. I have heard others with mild steal exhaust components complain about this problem as well

I still think the benefits of wrap are worthwile however.

[Oscar]

might aswell go for it then. If it lasts me 10k miles, that's 2 years of driving for me and stainless headers can be had for less than $150.

[alik]

Thanks, guys.
I'll blanket that sucker.

[Hot_Wheels]

ok this is maybe a little off topic, but what about ceramic coating it compared to the fiberglass wrap? i was thinking of jet hot once i heat cycle my manifold a litte. any thoughts? i would think there would be as much concern with cracking and it wont keep in moisture being its powder coated on

[Alta_Racer]

I did ceramic coating, then header wrap, then silicone sealant spray. This is supposed to protect the stainless from corrosion and fatigue. It also does a really great job keeping the heat inside the pipe and out of the bay. I am quite happy with the results so far. I had a mild steel set of headers on my Camaro that were done the same and lasted better than 10 years. They saw tremendous heat from lots of bigblock on the bottle.