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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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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><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></p><p =
class=3DMsoNormal><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></p><p class=3DMsoNormal><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></p><p =
class=3DMsoNormal><span =
style=3D'font-size:14.0pt'><o:p> </o:p></span></p><p =
class=3DMsoNormal><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></p><p =
class=3DMsoNormal><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></p><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:14.0pt'>Thanks,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:14.0pt'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'font-size:14.0pt'>Russ =
Moore<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt'>Spitfire #49<o:p></o:p></span></p><p =
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l>
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/archive
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