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It's all in the head. The combustion chambers in the later head are large=
r. Since compression ratio is (Displacement + Combustion Chamber Volume)/C=
ombustion Chamber Volume a larger Combustion Chamber Volume will give you a=
smaller number.
You can take a later model head and shave it down reducing the Combustion C=
hamber Volume and increase the CR. It is a fairly common practice among fo=
lks who modify their cars for performance.
=20
Dave Massey
=20
=20
-----Original Message-----
From: Carl Carlson <actionsl@att.net>
To: triumphs <triumphs@autox.team.net>
Sent: Mon, Oct 15, 2018 11:57 am
Subject: [TR] Compression
Can anyone tell me where the TR250 & early TR6 engine gets it=E2=80=99s hig=
h compression as the bore & stroke is the same as the latter engine?Carl** =
triumphs@autox.team.net **Donate: http://www.team.net/donate.htmlArchive: h=
ttp://www.team.net/pipermail/triumphs http://www.team.net/archiveUnsubscri=
be/Manage: http://autox.team.net/mailman/options/triumphs/dave1massey@cs.co=
m
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<font color=3D'black' size=3D'3' face=3D'Arial, Helvetica, sans-serif'>
<div> <font size=3D"3">It's all in the head. The combustion chambers =
in the later head are larger. Since compression ratio is (Displacemen=
t + Combustion Chamber Volume)/</font><font size=3D"3">Combustion Chamber V=
olume a larger </font><font size=3D"3"><font size=3D"3">Combustion Chamber =
Volume will give you a smaller number.</font></font></div>
<div><font size=3D"3"><font size=3D"3"><br>
</font></font></div>
<div><font size=3D"3"><font size=3D"3">You can take a later model head and =
shave it down reducing the </font></font><font size=3D"3"><font size=3D"3">=
<font size=3D"3">Combustion Chamber Volume and increase the CR. It is=
a fairly common practice among folks who modify their cars for performance=
.<br>
</font></font></font></div>
<div> <br>
</div>
<div style=3D"clear:both"><font size=3D"4">Dave Massey</font><br>
<br>
</div>
<div> <br>
</div>
<div> <br>
</div>
<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black">-----=
Original Message-----<br>
From: Carl Carlson <actionsl@att.net><br>
To: triumphs <triumphs@autox.team.net><br>
Sent: Mon, Oct 15, 2018 11:57 am<br>
Subject: [TR] Compression<br>
<br>
Can anyone tell me where the TR250 & early TR6 engine gets it=E2=80=99s=
high compression as the bore & stroke is the same as the latter engine=
?
Carl
** <a removedlink__619ff96f-797a-4a9e-bcd3-821a73929c95__href=3D"mailto:tri=
umphs@autox.team.net">triumphs@autox.team.net</a> **
//www.team.net/donate.html" target=3D"_blank">http://www.team.net/donate.ht=
ml</a>
Archive: <a removedlink__619ff96f-797a-4a9e-bcd3-821a73929c95__href=3D"http=
://www.team.net/pipermail/triumphs" target=3D"_blank">http://www.team.net/p=
ipermail/triumphs</a> <a removedlink__619ff96f-797a-4a9e-bcd3-821a73929c95=
__href=3D"http://www.team.net/archive"; target=3D"_blank">http://www.team.ne=
t/archive</a>
ref=3D"http://autox.team.net/mailman/options/triumphs/dave1massey@cs.com"; t=
arget=3D"_blank">http://autox.team.net/mailman/options/triumphs/dave1massey=
@cs.com</a>
</div>
</font>
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** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archive
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