<div dir="ltr">I can only tell you about mild steel headers: If you wrap them they will deteriorate at a much faster pace. If you ceramic coat them (and that is done to both the inside and outside) it will increase performance as the exhaust gasses will flow faster and it will also lower your under bonnet temps and keep your carbs cooler. But, .. there's more...... ceramic coating them will preserve them for many , many years. They will not burn up as all un-coated headers will eventually do.<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Nov 15, 2015 at 8:44 AM, <span dir="ltr"><<a href="mailto:ATIGHTPROD@aol.com" target="_blank">ATIGHTPROD@aol.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>
<div style="FONT-SIZE:10pt;FONT-FAMILY:Arial;COLOR:#000000"><font face="Arial" color="#000000" size="2">
<div>Heat and this ethanol fuel is a definite problem with my BN1 and I'm sure
the same happens with BN2's also and from what Keith is saying, it seems to also
affect six cylinder folks as well. From what I heard, a lower boiling point for
the fuel has a lot to do with why the "vapor lock" symptoms occur. </div>
<div>This is how I solved my problem with that happening while stuck in traffic,
starting up after sitting for a short time after a hot run, etc.</div>
<div> </div>
<div> </div>
<div>
<div>
<table cols="1" border="0" cellspacing="0" align="center">
<tbody>
<tr>
<td style="PADDING-BOTTOM:2px;PADDING-TOP:2px;PADDING-LEFT:2px;PADDING-RIGHT:2px" valign="top" align="center">
<table border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td valign="top" align="center"><img src="cid:X.MA1.1447605803@aol.com" style="min-height:360px;WIDTH:480px" height="360" border="0" width="480"> </td></tr>
<tr>
<td style="PADDING-BOTTOM:20px;PADDING-TOP:5px" align="center">
<div style="FONT-SIZE:12pt;FONT-FAMILY:Verdana">This is a marine bilge
fan I got off ebay, painted flat black and wired in next to my
radiator for easy removal and no holes drilled. 3" flex off both
sides, front goes to right behind grille and sucks cold air in. Rear
goes right to front float bowl.</div></td></tr></tbody></table></td></tr>
<tr>
<td style="PADDING-BOTTOM:2px;PADDING-TOP:2px;PADDING-LEFT:2px;PADDING-RIGHT:2px" valign="top" align="center">
<table border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td valign="top" align="center"><img src="cid:X.MA2.1447605803@aol.com" style="min-height:480px;WIDTH:360px" height="480" border="0" width="360"> </td></tr>
<tr>
<td style="PADDING-BOTTOM:20px;PADDING-TOP:5px" align="center">
<div style="FONT-SIZE:12pt;FONT-FAMILY:Verdana">Better view of
install. Simple. My car is a driver and I had a terrible time with
these new fuels, so the sight of the install doesn't bother me as it
solved all those problems.</div></td></tr></tbody></table></td></tr>
<tr>
<td style="PADDING-BOTTOM:2px;PADDING-TOP:2px;PADDING-LEFT:2px;PADDING-RIGHT:2px" valign="top" align="center">
<table border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td valign="top" align="center"><img src="cid:X.MA3.1447605803@aol.com" style="min-height:360px;WIDTH:480px" height="360" border="0" width="480"> </td></tr>
<tr>
<td style="PADDING-BOTTOM:20px;PADDING-TOP:5px" align="center">
<div style="FONT-SIZE:12pt;FONT-FAMILY:Verdana">
<div>The 3" flex is bent and pulled right to the float bowl. If I
sit, I turn the fan on from a switch inside the cockpit and let
it run for about 30 seconds before firing up and now problem. When
stuck in traffic, flick the switch and instant cold air stops vapor
lock. When going down the road, flip the switch and the fan turns
off. </div>
<div> </div>
<div><font face="Arial" size="2"></font> </div></div></td></tr></tbody></table></td></tr></tbody></table></div></div>
<div>Steven Kingsbury</div>
<div>BN1 #598</div>
<div> </div>
<div> </div>
<div>
<div>In a message dated 11/15/2015 8:15:42 A.M. Pacific Standard Time,
<a href="mailto:mottman55@gmail.com" target="_blank">mottman55@gmail.com</a> writes:</div>
<blockquote style="PADDING-LEFT:5px;MARGIN-LEFT:5px;BORDER-LEFT:blue 2px solid"><font style="BACKGROUND-COLOR:transparent" face="Arial" color="#000000" size="2">
<div dir="ltr">This is a really interesting survey, but what about paint?
I have a set of mild steel headers that I plan to put on a bugeye I'm
restoring. I don't really want to leave them bare, and I was planning on
painting them with high-temp paint.
<div><br></div>
<div>On a slightly different note, my experience with heat and rough running
in my BT7 is exactly the same as Bob's. I have come to accept that it is
'normal' behavior for these cars although I've always wondered about wrapping
the the exhaust manifold to decrease the heat load on the carbs. </div>
<div><br></div>
<div>Keith <br>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Sun, Nov 15, 2015 at 3:11 AM, Simon Lachlan <span dir="ltr"><<a title="mailto:simon.lachlan@homecall.co.uk" href="mailto:simon.lachlan@homecall.co.uk" target="_blank">simon.lachlan@homecall.co.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT:1ex;MARGIN:0px 0px 0px 0.8ex;BORDER-LEFT:#ccc 1px solid">
<div link="blue" vlink="purple" lang="EN-GB">
<div>
<p class="MsoNormal">I have stainless headers going down into a big bore(?)
exhaust.<u></u><u></u></p>
<p class="MsoNormal">Opinions seem to vary as to the merits of wrapping,
coating or doing nothing to them .<u></u><u></u></p>
<p class="MsoNormal">I have Webers above them, but I suspect, in my ignorance,
that these are maybe less prone to evaporation issues than
SUs.<u></u><u></u></p>
<p class="MsoNormal">What does the panel think?<u></u><u></u></p>
<p class="MsoNormal">See attached for a well researched synopsis. (Not by
me!)<span><font color="#888888"><u></u><u></u></font></span></p><span><font color="#888888">
<p class="MsoNormal">Simon<u></u><u></u></p></font></span></div></div><br>_______________________________________________<br>Support
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