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1980-924 · Joined: 21 Jul 2013 Posts: 31 Location: Western PA

So, Rustolem or VHT or what works best???
I'd like something that will last several years at least without any touch up. I have the stock exhaust with a Bursch cat back on it.

Anyone use a 'wrap' for the exhaust or headers? How did it work for you?
http://www.amazon.com/DEI-010131-Titanium-Exhaust-Wrap/dp/B0039Z1UHA/ref=pd_sbs_auto_2

I'd paint it first and then use the wrap to help keep the engine bay temp down and to try to keep some heat away from the starter and other components.

I like the idea of the wrap over Hi-Temp paint as long as the wrap would stay black and not bake to a whiteish / grayish color.

On Hi-Temp paint, would the black color last longer than silver / white etc?

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

If it isn't stainless steel, then I would have it ceramic coated.

http://www.finishlinecoatings.com does a great job of coating internally and externally with ceramic coatings and they have different finishes available. Rasta and I both have parts on our cars coated by them and they have lived up to the hype so far.

FYI: I melted two polyurethane passenger side control arm bushings before I had the MSDS header coated with their black coating that blocks 70% of the heat. Otherwise I'd have to build some sort of heat shield and hope for the best and given the limited amount of room in that area, that would prove to be extremely difficult.

Wrap tends to cause headers to fail prematurely from the excessive heat and the trapping of moisture against the header. Great for all out racing cars where parts are changed regularly.
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

Raceboy · Joined: 01 Mar 2004 Posts: 2327 Location: Estonia, Europe

If it is mild steel then also coat with ceramics. Just need to sandblast it prior to it.

I bought a can of Ceracote Titanium and it is applicable with just a paint gun. No need to heat it afterwards but it takes several days to fully cure.

It is durable on turbo exhausts and does not peel off.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold

'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

1980-924 · Joined: 21 Jul 2013 Posts: 31 Location: Western PA

I am using the stock exhaust manifold and pipe with a Bursch cat back on it.
Looking at all the separate pieces of heat shielding that go around the exhaust an dthe condition of the wires that go to the starter had me thinking that the heat wrap would make sense given how everything is crammed in there on that side of the engine.
While I have the manifold and pipe off, I'm going to clean them up and paint them and I was thinking that the wrap would make it a little less heat intense in the engine bay.
Would I get any benefit out of using the wrap?

Carrera RSR · Joined: 08 Jan 2010 Posts: 2312 Location: Somerset, UK

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

1980-924 · Joined: 21 Jul 2013 Posts: 31 Location: Western PA

What was the cost for them (http://www.finishlinecoatings.com) to coat the header?
How much was shipping the parts to them? Did you use UPS or ???
How long was the turnaround time on them getting it back to you?

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

It was about $180 and they are local to me, so I just dropped it off and picked it up. Took them a couple of days to do the work.

Reach out to them by phone and they'll give you the heads up on their turn around time, etc.
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)