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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's going on.
jim g
_____
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
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.
The question is... 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 ??
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!
Thanks,
Russ Moore
Spitfire #49
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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Russ,<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>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<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>it’s going =
on.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>jim g<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> Fot
[mailto:fot-bounces@autox.team.net] <b><span =
style=3D'font-weight:bold'>On Behalf
Of </span></b>Spitfire Racing<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Sunday, October 18, =
2015
7:33 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> 'Fot'<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> [Fot] Head =
question on
TR-6</span></font><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt;font-family:"Times New Roman"'><o:p></o:p></span></font></p>
</div>
<p class=3DMsoNormal><font size=3D2 face=3DCalibri><span =
style=3D'font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D4 face=3DCalibri><span =
style=3D'font-size:14.0pt'>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. <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D4 face=3DCalibri><span =
style=3D'font-size:14.0pt'>The
question is……… 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 ?<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D4 face=3DCalibri><span =
style=3D'font-size:14.0pt'>Any
of you have the combustion chamber volume to achieve this using flat top
pistons ??<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D4 face=3DCalibri><span =
style=3D'font-size:14.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D4 face=3DCalibri><span =
style=3D'font-size:14.0pt'>Anyone
out there have done this before? No point in trying to reinvent the =
wheel. Serial
number on head is 517528.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D4 face=3DCalibri><span =
style=3D'font-size:14.0pt'>Snow
on the ground this AM and temps in the 20s has me already in the winter =
project
mode!<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D4 face=3DCalibri><span =
style=3D'font-size:14.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D4 face=3DCalibri><span =
style=3D'font-size:14.0pt'>Thanks,<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D4 face=3DCalibri><span =
style=3D'font-size:14.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D4 face=3DCalibri><span =
style=3D'font-size:14.0pt'>Russ
Moore<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D4 face=3DCalibri><span =
style=3D'font-size:14.0pt'>Spitfire
#49<o:p></o:p></span></font></p>
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<p class=3DMsoNormal><font size=3D4 face=3DCalibri><span =
style=3D'font-size:14.0pt'><o:p> </o:p></span></font></p>
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/archive
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