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Re: [Fot] Head question on TR-6

To: "Jim Gray" <toodamnfunky@comcast.net>, "'Spitfire Racing'" <Spitfire_Racing@twcny.rr.com>, "'Fot'" <fot@autox.team.net>
Subject: Re: [Fot] Head question on TR-6
From: <riverside@southslope.net>
Date: Mon, 19 Oct 2015 13:31:13 -0500
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
Importance: Normal
References: <20151018230600.97B452584816@autox.team.net>
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cc the head so you know where you are.

an extra head gasket MAY have a negative impact=20
in your quench distance.

From: Jim Gray=20
Sent: Sunday, October 18, 2015 2:37 PM
To: 'Spitfire Racing' ; 'Fot'=20
Subject: Re: [Fot] Head question on TR-6

Russ,

Yes you can adjust the volume that way but you can always go to a =
thicker head gasket to get you there. You also have to know the deck =
height of the block

it=E2=80=99s going on.

jim g

=20


-------------------------------------------------------------------------=
-------

From: Fot [mailto:fot-bounces@autox.team.net] On Behalf Of Spitfire =
Racing
Sent: Sunday, October 18, 2015 7:33 AM
To: 'Fot'
Subject: [Fot] Head question on TR-6

=20

For the past 20 years or so I have had a NOS Circle B 6 cylinder head on =
a shelf in the parts room. For some reason I assumed it was for a TR-6 =
and would be ideal as a starting point for an eventual TR-250 project. =
Must to my disappointment I find it is a Mk2 GT-6 head. Likely it would =
afford too high a CR sitting on a 2500cc engine in stock condition.=20

The question is=E2=80=A6=E2=80=A6=E2=80=A6 Is it unreasonable to think I =
can open up the combustion chamber to bring the CR down to ~ 10.5:1 =
using it on a 2500cc application ?

Any of you have the combustion chamber volume to achieve this using flat =
top pistons ??

=20

Anyone out there have done this before? No point in trying to reinvent =
the wheel.  Serial number on head is 517528.

Snow on the ground this AM and temps in the 20s has me already in the =
winter project mode!

=20

Thanks,

=20

Russ Moore

Spitfire #49

=20

=20



-------------------------------------------------------------------------=
-------
_______________________________________________
fot@autox.team.net

http://www.fot-racing.com

Archive: http://www.team.net/archive
http://autox.team.net/mailman/options/fot/riverside@southslope.net





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No virus found in this message.
Checked by AVG - www.avg.com
Version: 2015.0.6172 / Virus Database: 4447/10838 - Release Date: =
10/17/15

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<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>cc the head so you know where you are.</DIV>
<DIV>&nbsp;</DIV>
<DIV>an extra head gasket MAY have a negative impact </DIV>
<DIV>in your quench distance.</DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV style=3D"FONT: 10pt tahoma">
<DIV>&nbsp;</DIV>
<DIV style=3D"BACKGROUND: #f5f5f5">
<DIV style=3D"font-color: black"><B>From:</B> <A =
title=3Dtoodamnfunky@comcast.net=20
href=3D"mailto:toodamnfunky@comcast.net";>Jim Gray</A> </DIV>
<DIV><B>Sent:</B> Sunday, October 18, 2015 2:37 PM</DIV>
<DIV><B>To:</B> <A title=3DSpitfire_Racing@twcny.rr.com=20
href=3D"mailto:Spitfire_Racing@twcny.rr.com";>'Spitfire Racing'</A> ; <A=20
title=3Dfot@autox.team.net href=3D"mailto:fot@autox.team.net";>'Fot'</A> =
</DIV>
<DIV><B>Subject:</B> Re: [Fot] Head question on TR-6</DIV></DIV></DIV>
<DIV>&nbsp;</DIV></DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV class=3DSection1>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: arial; COLOR: =
navy">Russ,<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: arial; COLOR: navy">Yes you can =
adjust the=20
volume that way but you can always go to a thicker head gasket to get =
you there.=20
You also have to know the deck height of the =
block<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: arial; COLOR: navy">it=E2=80=99s =
going=20
on.<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: arial; COLOR: navy">jim=20
g<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: arial; COLOR: =
navy"><o:p></o:p></SPAN></FONT>&nbsp;</P>
<DIV>
<DIV class=3DMsoNormal style=3D"TEXT-ALIGN: center" align=3Dcenter><FONT =
size=3D3=20
face=3D"Times New Roman"><SPAN=20
style=3D'FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman"'>
<HR tabIndex=3D-1 align=3Dcenter SIZE=3D2 width=3D"100%">
</SPAN></FONT></DIV>
<P class=3DMsoNormal><B><FONT size=3D2 face=3DTahoma><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: tahoma; FONT-WEIGHT: =
bold">From:</SPAN></FONT></B><FONT=20
size=3D2 face=3DTahoma><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
tahoma"> Fot=20
[mailto:fot-bounces@autox.team.net] <B><SPAN style=3D"FONT-WEIGHT: =
bold">On Behalf=20
Of </SPAN></B>Spitfire Racing<BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Sunday, October 18, 2015 =
7:33=20
AM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B> =
'Fot'<BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> [Fot] Head question on=20
TR-6</SPAN></FONT><FONT size=3D3 face=3D"Times New Roman"><SPAN=20
style=3D'FONT-SIZE: 12pt; FONT-FAMILY: "Times New =
Roman"'><o:p></o:p></SPAN></FONT></P></DIV>
<P class=3DMsoNormal><FONT size=3D2 face=3DCalibri><SPAN=20
style=3D"FONT-SIZE: 11pt"><o:p></o:p></SPAN></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT size=3D4 face=3DCalibri><SPAN =
style=3D"FONT-SIZE: 14pt">For=20
the past 20 years or so I have had a NOS Circle B 6 cylinder head on a =
shelf in=20
the parts room. For some reason I assumed it was for a TR-6 and would be =
ideal=20
as a starting point for an eventual TR-250 project. Must to my =
disappointment I=20
find it is a Mk2 GT-6 head. Likely it would afford too high a CR sitting =
on a=20
2500cc engine in stock condition. <o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT size=3D4 face=3DCalibri><SPAN =
style=3D"FONT-SIZE: 14pt">The=20
question is=E2=80=A6=E2=80=A6=E2=80=A6 Is it unreasonable to think I can =
open up the combustion chamber=20
to bring the CR down to ~ 10.5:1 using it on a 2500cc application=20
?<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT size=3D4 face=3DCalibri><SPAN =
style=3D"FONT-SIZE: 14pt">Any=20
of you have the combustion chamber volume to achieve this using flat top =
pistons=20
??<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT size=3D4 face=3DCalibri><SPAN=20
style=3D"FONT-SIZE: 14pt"><o:p></o:p></SPAN></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT size=3D4 face=3DCalibri><SPAN=20
style=3D"FONT-SIZE: 14pt">Anyone out there have done this before? No =
point in=20
trying to reinvent the wheel.&nbsp; Serial number on head is=20
517528.<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT size=3D4 face=3DCalibri><SPAN =
style=3D"FONT-SIZE: 14pt">Snow=20
on the ground this AM and temps in the 20s has me already in the winter =
project=20
mode!<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT size=3D4 face=3DCalibri><SPAN=20
style=3D"FONT-SIZE: 14pt"><o:p></o:p></SPAN></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT size=3D4 face=3DCalibri><SPAN=20
style=3D"FONT-SIZE: 14pt">Thanks,<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT size=3D4 face=3DCalibri><SPAN=20
style=3D"FONT-SIZE: 14pt"><o:p></o:p></SPAN></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT size=3D4 face=3DCalibri><SPAN =
style=3D"FONT-SIZE: 14pt">Russ=20
Moore<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT size=3D4 face=3DCalibri><SPAN=20
style=3D"FONT-SIZE: 14pt">Spitfire #49<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT size=3D4 face=3DCalibri><SPAN=20
style=3D"FONT-SIZE: 14pt"><o:p></o:p></SPAN></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT size=3D4 face=3DCalibri><SPAN=20
style=3D"FONT-SIZE: 14pt"><o:p></o:p></SPAN></FONT>&nbsp;</P></DIV>
<P>
<HR>
_______________________________________________<BR>fot@autox.team.net<BR>=
<BR>http://www.fot-racing.com<BR><BR>Donate:=20
http://www.team.net/forums<BR>Unsubscribe/Manage:=20
http://autox.team.net/mailman/options/fot/riverside@southslope.net<BR><BR=
><BR>
<P>
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<P align=3Dleft color=3D"#000000" avgcert??>No virus found in this=20
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Database: 4447/10838 - Release Date:=20
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