Subject: Re: [TR] lightened flywheel

From: "J.C. Hassall" <[email-masked]>
Date: Mon, 8 Jun 2015 08:54:33 -0400

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Dave,

I'm running a Fidanza in my autox/street TR4 with no (apparent?) problems.
Mine is a shrink fit onto the crank (10 minutes with a MAPP torch).  Since
Aluminum flywheels have been known to wobble loose, I also had four extra
bolt holes and an extra locating pin cut into the crank and I used ARP
bolts.  That was definitely a "belt, suspenders and tight pants" approach,
but do far no problems, and I frequently shift at 6K.  As Randal mentioned,
Joe Alexander at A.R.E. (www.the-vintage-racer.com) manufactured a very
nice light weight steel flywheel, but he was out of stock when I built my
engine.  His and the Fidanza both weigh about 10-11 lbs.  Be sure to use a
TR4A / TR6 diaphragm pressure plate (not the TR4 finger PP).

BTW, I'm sure you realize that the ad claim about adding 10+ HP is bogus.
It just feels that way because the reduced rotating mass enables the engine
to spin up and down faster, which leads to faster car acceleration.

jim

On Sun, Jun 7, 2015 at 9:54 PM, dave n <[email-masked]> wrote:

>      there are a lot of vendors and pricing for a lightened flywheel for
> an ealry tr4.  and recommendations?  warnings?
>
>
> http://www.jegs.com/i/Fidanza/383/172441/10002/-1?CAWELAID=1710568080&CAGPSPN=pla&catargetid=230006180000850618&cadevice=c&gclid=CI7Exf79_sUCFQYuaQod9hYAcw
>
> for an example or
>
>
> http://www.sparktecmotorsports.com/rrz-rz72441.html?utm_source=googlepepla&utm_medium=adwords&id=91571117117&gclid=CPK7kML9_sUCFREoaQodLSkA8g
>
>
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<div dir=3D"ltr">Dave,<div><br></div><div>I&#39;m running a Fidanza in my a=
utox/street TR4 with no (apparent?) problems.=C2=A0 Mine is a shrink fit on=
to the crank (10 minutes with a MAPP torch).=C2=A0 Since Aluminum flywheels=
 have been known to wobble loose, I also had four extra bolt holes and an e=
xtra locating pin cut into the crank and I used ARP bolts.=C2=A0 That was d=
efinitely a &quot;belt, suspenders and tight pants&quot; approach, but do f=
ar no problems, and I frequently shift at 6K.=C2=A0 As Randal mentioned, Jo=
e Alexander at A.R.E. (<a href=3D"http://www.the-vintage-racer.com">www.the=
-vintage-racer.com</a>) manufactured a very nice light weight steel flywhee=
l, but he was out of stock when I built my engine.=C2=A0 His and the Fidanz=
a both weigh about 10-11 lbs.=C2=A0 Be sure to use a TR4A / TR6 diaphragm p=
ressure plate (not the TR4 finger PP).</div><div><br></div><div>BTW, I&#39;=
m sure you realize that the ad claim about adding 10+ HP is bogus.=C2=A0 It=
 just feels that way because the reduced rotating mass enables the engine t=
o spin up and down faster, which leads to faster car acceleration.</div><di=
v><br></div><div>jim</div></div><div class=3D"gmail_extra"><br><div class=
=3D"gmail_quote">On Sun, Jun 7, 2015 at 9:54 PM, dave n <span dir=3D"ltr">&=
lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]</=
a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0=
 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir=3D"ltr">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE:12pt;FONT-FAMILY:&#39;Calibri&#39;;COLOR:#000000">
<div style=3D"FONT-SIZE:small;TEXT-DECORATION:none;FONT-FAMILY:&quot;Calibr=
i&quot;;FONT-WEIGHT:normal;COLOR:#000000;FONT-STYLE:normal;DISPLAY:inline">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE:12pt;FONT-FAMILY:&#39;Calibri&#39;;COLOR:#000000">
<div style=3D"FONT-SIZE:small;TEXT-DECORATION:none;FONT-FAMILY:&quot;Calibr=
i&quot;;FONT-WEIGHT:normal;COLOR:#000000;FONT-STYLE:normal;DISPLAY:inline">
<div dir=3D"ltr">
<div style=3D"FONT-SIZE:12pt;FONT-FAMILY:&#39;Calibri&#39;;COLOR:#000000">
<div>there are a lot of vendors and pricing for a lightened flywheel for an=
=20
ealry tr4.=C2=A0 and recommendations?=C2=A0 warnings?</div>
<div>=C2=A0</div>
<div><a title=3D"http://www.jegs.com/i/Fidanza/383/172441/10002/-1?CAWELAID=
=3D1710568080&amp;CAGPSPN=3Dpla&amp;catargetid=3D230006180000850618&amp;cad=
evice=3Dc&amp;gclid=3DCI7Exf79_sUCFQYuaQod9hYAcw" href=3D"http://www.jegs.c=
om/i/Fidanza/383/172441/10002/-1?CAWELAID=3D1710568080&amp;CAGPSPN=3Dpla&am=
p;catargetid=3D230006180000850618&amp;cadevice=3Dc&amp;gclid=3DCI7Exf79_sUC=
FQYuaQod9hYAcw" target=3D"_blank">http://www.jegs.com/i/Fidanza/383/172441/=
10002/-1?CAWELAID=3D1710568080&amp;CAGPSPN=3Dpla&amp;catargetid=3D230006180=
000850618&amp;cadevice=3Dc&amp;gclid=3DCI7Exf79_sUCFQYuaQod9hYAcw</a></div>
<div>=C2=A0</div>
<div>for an example or</div>
<div>=C2=A0</div>
<div><a title=3D"http://www.sparktecmotorsports.com/rrz-rz72441.html?utm_so=
urce=3Dgooglepepla&amp;utm_medium=3Dadwords&amp;id=3D91571117117&amp;gclid=
=3DCPK7kML9_sUCFREoaQodLSkA8g" href=3D"http://www.sparktecmotorsports.com/r=
rz-rz72441.html?utm_source=3Dgooglepepla&amp;utm_medium=3Dadwords&amp;id=3D=
91571117117&amp;gclid=3DCPK7kML9_sUCFREoaQodLSkA8g" target=3D"_blank">http:=
//www.sparktecmotorsports.com/rrz-rz72441.html?utm_source=3Dgooglepepla&amp=
;utm_medium=3Dadwords&amp;id=3D91571117117&amp;gclid=3DCPK7kML9_sUCFREoaQod=
LSkA8g</a></div></div></div></div></div></div></div></div></div></div>
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From: "Greg Lemon" <[email-masked]>
Date: Mon, 8 Jun 2015 07:59:49 -0500

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Dave, I have had a local machine shop lighten my TR6 and Healey 100 =
flywheels, probably won't get as light as aluminum, but they took an =
appreciable amount off, how much depends on how the flywheel is =
made--but anyway, about $70 dollars both times, but I am fortunate to =
have a local shop run by competent "old timers" who know what they are =
doing and charge reasonable prices.

Greg Lemon

From: dave n=20
Sent: Sunday, June 7, 2015 8:54 PM
To: [email-masked]=20
Subject: [TR] lightened flywheel

there are a lot of vendors and pricing for a lightened flywheel for an =
ealry tr4.  and recommendations?  warnings?

http://www.jegs.com/i/Fidanza/383/172441/10002/-1?CAWELAID=3D1710568080&C=
AGPSPN=3Dpla&catargetid=3D230006180000850618&cadevice=3Dc&gclid=3DCI7Exf7=
9_sUCFQYuaQod9hYAcw

for an example or

http://www.sparktecmotorsports.com/rrz-rz72441.html?utm_source=3Dgooglepe=
pla&utm_medium=3Dadwords&id=3D91571117117&gclid=3DCPK7kML9_sUCFREoaQodLSk=
A8g

-------------------------------------------------------------------------=
-------

Archive: http://www.team.net/archive
http://autox.team.net/mailman/options/triumphs/[email-masked]

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<META content=3Dtext/html;charset=3Diso-8859-1 =
http-equiv=3DContent-Type>
<META name=3DGENERATOR content=3D"MSHTML 11.00.9600.17801"></HEAD>
<BODY id=3DMailContainerBody=20
style=3D"PADDING-TOP: 15px; PADDING-LEFT: 10px; PADDING-RIGHT: 10px" =
dir=3Dltr=20
leftMargin=3D0 topMargin=3D0 CanvasTabStop=3D"true" name=3D"Compose =
message area">
<DIV><FONT face=3DCalibri>Dave, I have had a local machine shop lighten =
my TR6 and=20
Healey 100 flywheels, probably won't get as light as aluminum, but they =
took an=20
appreciable amount off, how much depends on how the flywheel is =
made--but=20
anyway, about $70 dollars both times, but I am fortunate to have a local =
shop=20
run by competent "old timers" who know what they are doing&nbsp;and =
charge=20
reasonable prices.</FONT></DIV>
<DIV><FONT face=3DCalibri></FONT>&nbsp;</DIV>
<DIV><FONT face=3DCalibri>Greg Lemon</FONT></DIV>
<DIV style=3D"FONT: 10pt Tahoma">
<DIV><BR></DIV>
<DIV style=3D"BACKGROUND: #f5f5f5">
<DIV style=3D"font-color: black"><B>From:</B> <A=20
title=3D"mailto:[email-masked]&#10;CTRL + Click to follow link"=20
href=3D"mailto:[email-masked]">dave n</A> </DIV>
<DIV><B>Sent:</B> Sunday, June 7, 2015 8:54 PM</DIV>
<DIV><B>To:</B> <A title=[email-masked]=20
href=3D"mailto:[email-masked]">[email-masked]</A> =
</DIV>
<DIV><B>Subject:</B> [TR] lightened flywheel</DIV></DIV></DIV>
<DIV><BR></DIV>
<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>there are a lot of vendors and pricing for a lightened flywheel for =
an=20
ealry tr4.&nbsp; and recommendations?&nbsp; warnings?</DIV>
<DIV>&nbsp;</DIV>
<DIV><A=20
title=3Dhttp://www.jegs.com/i/Fidanza/383/172441/10002/-1?CAWELAID=3D1710=
568080&amp;CAGPSPN=3Dpla&amp;catargetid=3D230006180000850618&amp;cadevice=
=3Dc&amp;gclid=3DCI7Exf79_sUCFQYuaQod9hYAcw=20
href=3D"http://www.jegs.com/i/Fidanza/383/172441/10002/-1?CAWELAID=3D1710=
568080&amp;CAGPSPN=3Dpla&amp;catargetid=3D230006180000850618&amp;cadevice=
=3Dc&amp;gclid=3DCI7Exf79_sUCFQYuaQod9hYAcw">http://www.jegs.com/i/Fidanz=
a/383/172441/10002/-1?CAWELAID=3D1710568080&amp;CAGPSPN=3Dpla&amp;catarge=
tid=3D230006180000850618&amp;cadevice=3Dc&amp;gclid=3DCI7Exf79_sUCFQYuaQo=
d9hYAcw</A></DIV>
<DIV>&nbsp;</DIV>
<DIV>for an example or</DIV>
<DIV>&nbsp;</DIV>
<DIV><A=20
title=3Dhttp://www.sparktecmotorsports.com/rrz-rz72441.html?utm_source=3D=
googlepepla&amp;utm_medium=3Dadwords&amp;id=3D91571117117&amp;gclid=3DCPK=
7kML9_sUCFREoaQodLSkA8g=20
href=3D"http://www.sparktecmotorsports.com/rrz-rz72441.html?utm_source=3D=
googlepepla&amp;utm_medium=3Dadwords&amp;id=3D91571117117&amp;gclid=3DCPK=
7kML9_sUCFREoaQodLSkA8g">http://www.sparktecmotorsports.com/rrz-rz72441.h=
tml?utm_source=3Dgooglepepla&amp;utm_medium=3Dadwords&amp;id=3D9157111711=
7&amp;gclid=3DCPK7kML9_sUCFREoaQodLSkA8g</A></DIV></DIV></DIV></DIV></DIV=
></DIV></DIV></DIV></DIV>
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