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Re: red hot headers

To: <walt@hot-tr6.com>, "Don Marshall" <marshall@nefcom.net>,"'riverside'" <riverside@Cedar-Rapids.net>,"'fot'" <fot@autox.team.net>
Subject: Re: red hot headers
From: "kas kastner" <kaskas@cox.net>
Date: Mon, 11 Apr 2005 11:32:09 -0700
Delivered-to: mharc@demo.fatchancegarage.com
References: <NIBBKKHPCHGMLCANDPHIIELJCMAA.walt@hot-tr6.com>
Reply-to: "kas kastner" <kaskas@cox.net>
Sender: owner-fot@autox.team.net
Retarded ignition will create a lot more heat in the exhaust.
  ----- Original Message -----
  From: walt@hot-tr6.com
  To: Don Marshall ; 'riverside' ; 'fot'
  Sent: Monday, April 11, 2005 9:29 AM
  Subject: RE: red hot headers


  I run racing headers on my hot TR6 street/racing engine. Ron Meek, my
engine
  builder, had the insides of my headers ceramic coated in an effort to pass
  through some of the extreme heat past the headers and on out the exhaust
  system. Seems to work well.
  Walt Hollowell
  Abq., NM

  -----Original Message-----
  From: owner-fot@autox.team.net [mailto:owner-fot@autox.team.net]On
  Behalf Of Don Marshall
  Sent: Monday, April 11, 2005 8:43 AM
  To: 'riverside'; 'fot'
  Subject: RE: red hot headers


  Please respond to the whole list on this one.  I had the same thing
  happen the other day and figured it was too lean a mixture at low revs.
  Now I'm curious.
  Thx, Don  TR4A

  -----Original Message-----
  From: owner-fot@autox.team.net [mailto:owner-fot@autox.team.net] On
  Behalf Of riverside
  Sent: Monday, April 11, 2005 1:19 PM
  To: fot
  Subject: red hot headers

  fired up a fresh engine with tube headers last week and the
  headers went to glowing red hot and 1000 deg F in about
  2 minutes at 1500 rpm.   shut it down.  unfortunately, did not
  have an air/fuel meter. last time i did a tractor motor with
  cast iron ex manifold, we only got to about 650 and held there.

  couple days later ran across an article saying that such a condition
  is caused not by a lean mixture, but more likely cam timing or
  rich mixture allowing the fire to still be going hard in the header,

  don't recall ever getting a TR header that hot.

  any comments from the engine guys in our group about the cause of
  the glowing headers and hazards to continuous operation.

  art de armond

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