[Healeys] Jet-coating, wrap or do nothing to stainless headers?

[Tracy Drummond]

I did the stock iron slugs (manifolds ;-)  with Jethot and love it.  Hint they give a certificate for money off after the first job done.  So if you like it on your headers you could get money off the intake manifold.  I went with standard silver.  They can do it in many colors.   Many pro drag racers do this inside and outside headers for flow and durability.  Looks like chrome / kinda. 

 

From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Michael Oritt
Sent: Tuesday, November 17, 2015 11:32 AM
To: Al Fuller
Cc: healeys
Subject: Re: [Healeys] Jet-coating, wrap or do nothing to stainless headers?

 

Al--

 

Jet-Hot's contact info is:

 

http://www.jet-hot.com/contact/

 

Best--Michael Oritt

 

On Tue, Nov 17, 2015 at 2:11 PM, Al Fuller <al at bighealey.org> wrote:

Michael:  can you share with us who you use for the Jet-Hot coating?

 

Thanks,

 

Al Fuller

al at bighealey dot org

'65 BJ-8

'85 Rx-7

 

From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Michael Oritt
Sent: Sunday, November 15, 2015 10:11 AM
To: Bob Spidell <bspidell at comcast.net>
Cc: healeys <healeys at autox.team.net>


Subject: Re: [Healeys] Jet-coating, wrap or do nothing to stainless headers?

 

I had the DW header pipes on my 100 wrapped with heat tape for about two years, then took it off and went to a reflective shield.  I noticed no deterioration of the pipes when I changed over to the shield and that was ten years ago.

 

I don't believe that polishing is not the way to go as sometimes the process brings impurities to the surface and causes a lot of corrosion, esp. in SS.  I have Jet-Hot coating or the like on the headers of all of my race cars and everything is intact and nice and shiny!  

 

Best--Michael Oritt

 

On Sun, Nov 15, 2015 at 9:52 AM, Bob Spidell <bspidell at comcast.net> wrote:

I'll add that, although I wrapped the mild steel downpipes on my BJ8 and have no problems--that I know of--I've become reluctant to recommend it.  I've seen photographic evidence of pipes being severely eroded by wrapping; though it appears to be a hit-or-miss issue, and may be due, in part, to how they were wrapped and what they were wrapped with (I have to believe if it was a very common problem nobody would buy the wrap and companies would cease to sell it).  I wouldn't expect ceramic coating to be a problem, at least if the pipes were coated both inside and outside (inside only might even be better).

 

Here in the colonies we mostly have to use gas with 10% ethanol ('pure' gas is available at some stations, but it's relatively rare).  On a warm day, if my engine is hot and shut down for less than a couple hours and restarted I'll get some stumbling until air flow has cooled everything off a bit.  I can't say with absolute certainty that the gasahol is the problem, but I don't recall this ever happening before the new formulation became prevalent.  I think ceramic coating the manifold might cure this problem.

 

Bob

 


  _____  


From: "Oudesluys" <coudesluijs at chello.nl>
To: "healeys" <healeys at autox.team.net>
Sent: Sunday, November 15, 2015 2:28:55 AM
Subject: Re: [Healeys] Jet-coating, wrap or do nothing to stainless headers?

 

Mirror polish them and leave them alone. Wrapping may lead to burning the metal away, coating possibly a similar story. By polishing you reduce the radiation of heat so the carbs should remain relatively cool. Anyway Webers/DellOrto's do not have the tendency to boil fuel. Also a car with an electric fuel pump does not normally have problems with fuel vapour lock.
Kees Oudesluijs




Op 15-11-2015 om 11:11 schreef Simon Lachlan:

I have stainless headers going down into a big bore(?) exhaust.

Opinions seem to vary as to the merits of wrapping, coating or doing nothing to them .

I have Webers above them, but I suspect, in my ignorance, that these are maybe less prone to evaporation issues than SUs.

What does the panel think?

See attached for a well researched synopsis. (Not by me!)

Simon


\

 

 


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