DontMixWithRice

Have any of you wrapped Pacesetters LT?

What did you use?
Any tips on problem areas?
Any advice?

NOMAD

If it's not coated don't wrap it. Lack of coating will cause header tube blowout on a street driven car due to higher exhaust temperatures inside the tube.

-Shannon

OBE1 95Z28

Wraps run the risk of getting oil soaked over time and cause a fire hazard. Tom Byrne burned a Z28 to the ground that way.

MyShibbyZ28

Don't they make a flame retardant liquid you can soak stuff in? Has anyone ever tried that? I would think if you wrapped it right and had some sort of flame retardant, it would be fine.

trans9_5am

Will the header wrap effect the coating in anyway if you ever decide to take the wrap off? I realize that header wrap is prone to hold moisture which could damage an uncoated header but how does this effect a coated header???

Brandon

CANTONRACER

It is a great product for IMO a controlled environment car...a race car that never see's dirt, oil, rain, etc...

shoebox

My question would be why you would want to wrap a coated header?

BUBBA

Just don't.

DontMixWithRice

The headers are not coated.

MyShibbyZ28

If you are not suppose to wrap coated, and it is bad to wrap un-coated, then what the hell is header wrap for? I would use it, if I had headers, coated or uncoated.

Injuneer

Header wrap keeps all the heat in the tubes. That's good for performance, but bad for the metal. It means the primary tube metal temps are reaching 1,000+degF at times, and mild steel is not intended to survive at those temps. The extreme heat causes oxidation (they don't rust from the wrap "trapping water", they rust because of the extreme temperature), and that weakens the metal. And then the welds embrittle, and crack from the heat cycling. Good way to shorten the life of the header. In a race car, the header life isn't all that important, compared to performance, but in a street car, replacing headers isn't real convenient.

BUBBA

Headers/manifolds get " hot". Juiced or boost will even make them hotter (is why chromate finsh ceramic is not advised for the "real hot" headers but works fine for NA; hotter headers require a black type of ceramic).

Properly coated headers keep the heat in the primaries promoting velocity for enhanced exhaust scavenge. Outside coating keeps the underthehood temp down. On 14/16 gauge non-stainless headers it keeps them from rusting.

Wrapping headers is a mess. It makes working under the hood even more of a pain. Often obscures things like loose bolts, leaky heads or headers, etc.

Any material, including fire sleeve material will burn if touching a really hot header. IMO, swathing the headers is a poor alternative to using coated headers. But, again this is just my opinon. It's your mouth, you can haul coal in it if you want to.

MyShibbyZ28

What about using that paint that can withstand 1500* after being baked? Spray that on there, wrap it, enjoy...or no?

Injuneer

Paint is not likely to stick. And it won't do the same thing as a cerametallic coating. The coatings are applied to both the inside and outside of the tubes. That coating reflects the heat back into the exhaust gas, before it can even get to the metal tube. The keeps the exhaust hot and increases velocity/scavenging. The metal tube stay cooler, so it doesn't corrode, doesn't go through the extreme heat cycles that produce tube wall and weld cracking, and doesn't radiate heat to the engine compartment. A "paint" will offer none of those benefits, other than preventing oxidation of the outside of the tubes.