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Both my TR3s have lightened flywheels which came from Racetorations. No =
financial interest, but it is owned by my cousin, Darryl Uprichard, and =
if he is in a good mood I sometimes get a family discount.
=20
Having driven several stock TR3s, I do notice the difference. But then, =
both cars also have 89mm pistons, so I cannot ascribe it entirely to the =
flywheel.
=20
Andrew Uprichard
Jackson, Michigan
=20
From: Paul Dorsey [mailto:dorpaul1@gmail.com]=20
Sent: Monday, September 10, 2018 3:17 PM
To: john.macartney@ukpips.org.uk
Cc: jpaynepbr@cox.net; TERRY SMITH; Randall; auprichard@uprichard.net; =
ghaynestr4@aol.com; Triumph list Team.net
Subject: Re: [TR] Electric Fans: Something Different
=20
do they make a lighter flywheel? What about Aluminum?
Paul
=20
On Mon, Sep 10, 2018 at 9:30 AM John Macartney =
<john.macartney@ukpips.org.uk> wrote:
I think I'm correct in saying one of the reasons for the heavier =
flywheel is
that the wet liner four engine was originally designed for the Standard
Vanguard with a two speed (low and high) gearbox with overdrive and also =
the
Ferguson tractor - both of which engines needed to develop shedloads of
torque at very low engine speeds. In both instances, much heavier =
flywheels
were required. Even if the early TR's could have got away with lighter
units, that would have meant having two different units. In those early =
post
WW2 days, iron and steel in the UK was in such short supply that having =
a
'common' flywheel across the range made economic sense from a production
cost viewpoint. Just an opinion
Jonmac
-----Original Message-----
From: Triumphs <triumphs-bounces@autox.team.net> On Behalf Of
jpaynepbr@cox.net
Sent: 23 July 2018 00:38
To: 'TERRY SMITH' <terryrs@comcast.net>; Randall <tr3driver@ca.rr.com>;
Andrew Uprichard <auprichard@uprichard.net>; George Haynes
<ghaynestr4@aol.com>; triumphs@autox.team.net
Subject: Re: [TR] Electric Fans: Something Different
I believe the TR2/3/4 was more or less "balanced" internally. The =
flywheel
weighs about 3x what it needs to. I believe they used the flywheel to
smooth it out.
Jonas Payne
PBR Consulting Services, LLC
702.882.6711
** triumphs@autox.team.net **
Archive: http://www.team.net/archive
http://autox.team.net/mailman/options/triumphs/john.macartney@ukpips.org.=
uk
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** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs =
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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;color:#1F497D'>Both my TR3s have lightened =
flywheels which came from Racetorations.=C2=A0 No financial interest, =
but it is owned by my cousin, Darryl Uprichard, and if he is in a good =
mood I sometimes get a family discount.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'font-size:11.0pt;color:#1F497D'>Having =
driven several stock TR3s, I do notice the difference.=C2=A0 But then, =
both cars also have 89mm pistons, so I cannot ascribe it entirely to the =
flywheel.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'font-size:11.0pt;color:#1F497D'>Andrew =
Uprichard<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;color:#1F497D'>Jackson, =
Michigan<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Paul Dorsey [mailto:dorpaul1@gmail.com] <br><b>Sent:</b> Monday, =
September 10, 2018 3:17 PM<br><b>To:</b> =
john.macartney@ukpips.org.uk<br><b>Cc:</b> jpaynepbr@cox.net; TERRY =
SMITH; Randall; auprichard@uprichard.net; ghaynestr4@aol.com; Triumph =
list Team.net<br><b>Subject:</b> Re: [TR] Electric Fans: Something =
Different<o:p></o:p></span></p><p =
class=3DMsoNormal><o:p> </o:p></p><div><p class=3DMsoNormal>do they =
make a lighter flywheel? What about =
Aluminum?<o:p></o:p></p><div><p =
class=3DMsoNormal>Paul<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><div><p class=3DMsoNormal>On =
Mon, Sep 10, 2018 at 9:30 AM John Macartney <<a =
href=3D"mailto:john.macartney@ukpips.org.uk";>john.macartney@ukpips.org.uk=
</a>> wrote:<o:p></o:p></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-right:0in'><p class=3DMsoNormal>I think =
I'm correct in saying one of the reasons for the heavier flywheel =
is<br>that the wet liner four engine was originally designed for the =
Standard<br>Vanguard with a two speed (low and high) gearbox with =
overdrive and also the<br>Ferguson tractor - both of which engines =
needed to develop shedloads of<br>torque at very low engine speeds. In =
both instances, much heavier flywheels<br>were required. Even if the =
early TR's could have got away with lighter<br>units, that would have =
meant having two different units. In those early post<br>WW2 days, iron =
and steel in the UK was in such short supply that having a<br>'common' =
flywheel across the range made economic sense from a production<br>cost =
viewpoint. Just an opinion<br><br>Jonmac<br><br>-----Original =
Message-----<br>From: Triumphs <<a =
href=3D"mailto:triumphs-bounces@autox.team.net"; =
target=3D"_blank">triumphs-bounces@autox.team.net</a>> On Behalf =
Of<br><a href=3D"mailto:jpaynepbr@cox.net"; =
target=3D"_blank">jpaynepbr@cox.net</a><br>Sent: 23 July 2018 =
00:38<br>To: 'TERRY SMITH' <<a href=3D"mailto:terryrs@comcast.net"; =
target=3D"_blank">terryrs@comcast.net</a>>; Randall <<a =
href=3D"mailto:tr3driver@ca.rr.com"; =
target=3D"_blank">tr3driver@ca.rr.com</a>>;<br>Andrew Uprichard =
<<a href=3D"mailto:auprichard@uprichard.net"; =
target=3D"_blank">auprichard@uprichard.net</a>>; George =
Haynes<br><<a href=3D"mailto:ghaynestr4@aol.com"; =
target=3D"_blank">ghaynestr4@aol.com</a>>; <a =
href=3D"mailto:triumphs@autox.team.net"; =
target=3D"_blank">triumphs@autox.team.net</a><br>Subject: Re: [TR] =
Electric Fans: Something Different<br><br>I believe the TR2/3/4 was more =
or less "balanced" internally. The flywheel<br>weighs =
about 3x what it needs to. I believe they used the flywheel =
to<br>smooth it out.<br><br>Jonas Payne<br>PBR Consulting Services, =
LLC<br>702.882.6711<br><br><br><br>** <a =
href=3D"mailto:triumphs@autox.team.net"; =
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