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I'm not sure why you want to heat wrap the pipes, it's original intended purpose was to enhance the efficiency of exhaust gas scavenging, keeping the exhaust gases hotter longer.

If you are running a highly tuned raced engine...well you may or may not be able to realize some benefit after much dyno tuning.

In most cases you will just increase the rate at which your headers oxidize into powder. Some stainless headers will hold up quite a while under street use..depends on the alloy 304/316 etc.

No reason to wrap street headers at all...unless you have a specific heat problem in a particular area.....and in that case it's FAR better to use some kind of heat insulating material between the exhaust and the component you are trying to protect.

Many a person has ruined their steel exhausts by wrapping them to look like the race bikes of the day. Now days wrapping is an art practiced by experienced wrenches to address particular exhaust gas dynamics on particular engines.

Just paint them with Dupli-Color high heat paint and bake in an oven according to their instructions and the finish will hold up very well for quite a long time.
JohnnyB
 

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David,
The Dupli-Color "Ceramic" high heat paint is excellent. Not sure if it's possible for you but baking it on according to the instructions makes a world of difference. It stinks though. Once it's baked on the stuff seems impervious to solvents, fuel etc. About the best I've found. Makes a real nice, hard coating when baked. I use my powder coating oven to bake it on.
If you don't bake it on...be careful with the pipes before they get heated up and cure, it's not solvent/fuel proof before it gets cured.
I've tried several different paints and it's the best I've found. Use it on all my race bikes, will lighten up a bit up by the exhaust ports...but then the pipes get red hot up there during a race.
JohnnyB
 

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David,
My powder coating oven is made from the guts of a household electric oven that I built a large insulated metal cabinet for. All the controls no longer work so I'm down to switching the coils with breakers and watching an oven themometer through the window :)
JohnnyB
 

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Well....I don't see how they could be MUCH better. The Dupli-color holds up to red hot temps for a couple of years of racing conditions, and seems impervious to solvents.
And I can get it at Walmart. Well....it would be MUCH better if it gave me 5hp for free.
JohnnyB
 

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We can't be talking about the same stuff then. The Dupli-color I'm using leaves a coating nothing like the typical Krylon/Rustoleum barb-q paints.
This stuff leaves a hard shell, hard to even scratch off with a tool, can even be polished with steel wool, has a glass like feeling to it. Of course you HAVE to follow the instructions and bake at about 500 degrees for two hours. If you don't do that it's just like any other paint.

I say my Dupli-color's father can kick the shit out of your Bill Hirsch's Dad any freakin day of the week!
JohnnyB
 
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