Exhaust wrap, paint or ceramic coating?

My ceramic coated headers on my Ultima dissipate heat really well and they are directly under a fiberglass clip.

Personally I don't like the heat wrap on a bare exhaust, however I'm not sure how it would interact on a ceramic coated one.

From what I have seen a lot of people are opting for a heat deflector shield on the underside of the hood.

Julian

I agree with Julian. I have the heat deflector shield on mine.

Is this the one you guys recommend

http://precisionproformance.com/ex1075.php

That's a lot of $$ for a flat piece of stainless. If you have a local metal supplier or a water jet shop close by, I bet you can get it made for less than half of that.

Julian

Check out this thread, look at the shield Tony Ortiz is running.



Cool stuff.


180 Header Thread

What thickness of plate are most people using? Just concerned about the extra weight on the decklid struts

Hey Jon,
There are always conflicts of opinion on this one. I remember some good debate on the GT40s forum on the same topic some years ago. I ended up using fiberglass wrap. I found it very effective. Additionally, it was fantastic not to burn yourself while working on it. The story goes that there is a big down side regarding shortened life of the pipes (pipes getting brittle). I don't have any empirical evidence on this though.....

Here is my GT40. Installing the wrap took a few hours and sore hands, but the outcome looked the part well and was very functional.

You would use the thinnest sheet of stainless that will maintain its rigidity. It should not add an appreciable weight. I would not wrap bare steel as it does tend to trap moisture which will cause it to deteriorate quickly. If the headers are stainless wrap away. We used to wrap stainless turbo manifolds all the time and never had any issues with cracking from embrittlement.

quote:

Originally posted by tajon:
What thickness of plate are most people using? Just concerned about the extra weight on the decklid struts

The answer is in the other thread. 20 gauge. 22 is fine also.

You didn't read that chapter? Detention! Next you will be telling me that your dog ate your homework?

You don't need the wrap. It's gonna get cruddy looking anyway. Some people paint it with header paint as a result.

You might consider a sheet of carbon fiber too, or use some of the gold foil heat shield as used on race cars.

Thanks for the replies

Titanium ceramic coating, plus, a i/16th" aluminum shield on sail. Their is also heat shield volcanic weave on the tubs,fuel tank,You should run a phenolic spacer on your carb due to heat flow, wrapping restricts to many things, like removing the headers, the plugs, the mufflers etc. in my opinion.

I do use a phenolic spacer already. 1/16 and coating may be the ticket.

All the ideas are appreciated

Chris who made those headers, Hall?

those are "Lemon Headers" Dan Lemon Atascadero, Ca. Built on car to my specs.

Is there a good place to get that weave?

That's expensive stuff, a roll is about $250.00 the material is volcanic rock, NASCAR uses it I will get you the name tomorrow.
https://www.heatshieldproducts...and-thermal-barriers
It's Lava shield.

quote:

Originally posted by Joules:
My ceramic coated headers on my Ultima dissipate heat really well and they are directly under a fiberglass clip.

Personally I don't like the heat wrap on a bare exhaust, however I'm not sure how it would interact on a ceramic coated one.

From what I have seen a lot of people are opting for a heat deflector shield on the underside of the hood.

Julian

Julian ,
where did you find that very old picture of my Pantera? Looks a lot different now. The heat shield in this picture is the Hall Pantera version that is listed by Tajon available also from Precision Pro-Formance. It is 20ga( I believe) SS with a heat barrier attached to the back side of it. The design of it is not very detailed but I had it in the car for 10 years and it did the job. I have never had paint issues even with track time . I have since developed my own 180 deg headers as well as a more attractive heat shield which I offer in aluminum or stainless. The shield helps to reflect the heat but the real insulation comes from the material on the other side.


Ron

Here's another shot of the current shield.


Ron

Very nice Ron but I need to remember to wear my darkest sun glasses when looking at your car for eye safety?

What are your headers? Are they stainless and ceramic coated? I don't see any bluing on the tubes? That's why I ask.

Did you move the lift cylinders away from the headers or was that in anticipation of running roll bar braces through that space eventually?

On my car there isn't enough room for those braces without moving the lifts out of the way.