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<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=358084107-16092015>Thanks to the Fot members for their reactions : most
are warnings that triple 45 Webers may be too big on a TR6 engine. But it
is a race engine (2720cc) and the owner has already bought 3 good
secondhand 45 Webers with identical progression holes : 36mm main
venturi's seem to be a reasonable starting point in this case?
</SPAN></FONT><FONT color=#0000ff size=2 face=Arial><SPAN
class=358084107-16092015>If necessary, he can go down to 34mm in 45
Webers.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=358084107-16092015> I've seen TR6 racecars with 45 Webers and I
wonder if the Cannon manifold, with 40mm diameter bores on the carburetor
side, can be reamed to 45mm? </SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=358084107-16092015>Another question : the valve seat pressure on my
TR4A racecar is 35 kgs/77 lbs. I've also a cylinderhead with only 25 kgs/55lbs
seat pressure. The springs on both cylinderheads are 5.25kg/mm
(290lbs/").</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=358084107-16092015>Do you think 25kgs seat pressure is
enough?</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=358084107-16092015>Marcel</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=358084107-16092015></SPAN></FONT> </DIV><BR>
<DIV lang=nl class=OutlookMessageHeader dir=ltr align=left>
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<FONT size=2 face=Tahoma><B>Van:</B> Van Mulders Marcel
[mailto:van.mulders.marcel@telenet.be] <BR><B>Verzonden:</B> woensdag 9
september 2015 17:32<BR><B>Aan:</B> 'fot@autox.team.net'<BR><B>Onderwerp:</B>
TR6 Cannon Intake Manifold<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><FONT size=2 face=Arial><SPAN class=440501915-09092015>I have to install
triple Webers DCOE 45 on a TR6 engine. The owner has also provided a
Cannon one piece intake manifold with balance pipes. The bore of the
runners is 40mm on the carburettor side and 31.5mm on the cylinderhead
side.</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Arial><SPAN class=440501915-09092015>Can these runners be
reamed to 45mm/34mm? If not, are there other inlet manifolds
available?</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Arial><SPAN
class=440501915-09092015>Marcel.</SPAN></FONT></DIV></BODY></HTML>