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Re: [Fot] Gearing question for Lime Rock

To: Dave Riddle <dave@microworks.net>
Subject: Re: [Fot] Gearing question for Lime Rock
From: Scott Janzen via Fot <fot@autox.team.net>
Date: Mon, 2 Jun 2025 14:15:58 -0400
Cc: 'Friends of Triumph' Triumph <fot@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
References: <SN7PR14MB704300AC8E315480F5C9FBE5B562A@SN7PR14MB7043.namprd14.prod.outlook.com> engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-06-02_07,2025-06-02_01,2025-03-28_01 bulkscore=0 mlxlogscore=999 spamscore=0 clxscore=1011 malwarescore=0 mlxscore=0 phishscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.22.0-2503310001 definitions=main-2506020151
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I would not call LR a high speed track.  In the GT6, I do not hit =
redline in 4th on the front straight with a 3.89, and no-name straight =
is much shorter.  Not sure how that compares for your car - the engine =
does run to 7,300 RPM, but I also only have 13=E2=80=9D wheels.  For me, =
with a close ratio TR6 box, it=E2=80=99s mostly a third gear track =
except on the front straight.

On Jun 2, 2025, at 12:15=E2=80=AFPM, Dave Riddle via Fot =
<fot@autox.team.net> wrote:

Lime Rock is a high speed Track so does the collective FOT wisdom think =
a 3.7 or 4.1 rear end would be best in a TR4?
=20
<image001.jpg> <http://www.microworks.net/>
Dave Riddle
Business IT Consulting
Office: 480.610.8234
Cell: 602.692.5276
Website: http://www.microworks.net <http://www.microworks.net/>
<image002.png> <https://partner.microsoft.com/en-US/><image003.png> =
<https://www.acronis.com/en-us/><image004.png> =
<https://www.clio.com/><image005.png> =
<https://www.citycommunications.com/>
=20
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"overflow-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;">I would not =
call LR a high speed track. &nbsp;In the GT6, I do not hit redline in =
4th on the front straight with a 3.89, and no-name straight is much =
shorter. &nbsp;Not sure how that compares for your car - the engine does =
run to 7,300 RPM, but I also only have 13=E2=80=9D wheels. &nbsp;For me, =
with a close ratio TR6 box, it=E2=80=99s mostly a third gear track =
except on the front straight.<br =
id=3D"lineBreakAtBeginningOfMessage"><div><br><div>On Jun 2, 2025, at =
12:15=E2=80=AFPM, Dave Riddle via Fot &lt;fot@autox.team.net&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div><meta =
charset=3D"UTF-8"><div class=3D"WordSection1" style=3D"page: =
WordSection1; caret-color: rgb(0, 0, 0); font-family: Verdana-Bold; =
font-size: 13px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;"><div style=3D"margin: 0in; font-size: 12pt; font-family: Calibri, =
sans-serif;"><span style=3D"font-size: 11pt;">Lime Rock is a high speed =
Track so does the collective FOT wisdom think a 3.7 or 4.1 rear end =
would be best in a TR4?<o:p></o:p></span></div><div style=3D"margin: =
0in; font-size: 12pt; font-family: Calibri, sans-serif;"><span =
style=3D"font-size: 11pt;"><o:p>&nbsp;</o:p></span></div><div =
style=3D"margin: 0in; font-size: 12pt; font-family: Calibri, =
sans-serif;"><a href=3D"http://www.microworks.net/";><span =
style=3D"font-size: 11pt; color: blue; text-decoration: none;"><span =
id=3D"cid:image001.jpg@01DBD39E.E9BA0F20">&lt;image001.jpg&gt;</span></spa=
n></a><span style=3D"font-size: 11pt;"><o:p></o:p></span></div><div =
style=3D"margin: 0in; font-size: 12pt; font-family: Calibri, =
sans-serif;"><b>Dave Riddle<o:p></o:p></b></div><div style=3D"margin: =
0in; font-size: 12pt; font-family: Calibri, sans-serif;"><span =
style=3D"font-size: 11pt;">Business IT =
Consulting<o:p></o:p></span></div><div style=3D"margin: 0in; font-size: =
12pt; font-family: Calibri, sans-serif;"><span style=3D"font-size: =
11pt;">Office: 480.610.8234<o:p></o:p></span></div><div style=3D"margin: =
0in; font-size: 12pt; font-family: Calibri, sans-serif;"><span =
style=3D"font-size: 11pt;">Cell: =
602.692.5276<o:p></o:p></span></div><div style=3D"margin: 0in; =
font-size: 12pt; font-family: Calibri, sans-serif;"><span =
style=3D"font-size: 11pt;">eMail:<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"mailto:dave@microworks.net";><span style=3D"color: =
blue;">dave@microworks.net</span></a><o:p></o:p></span></div><div =
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sans-serif;"><span style=3D"font-size: 11pt;">Website:<span =
class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"http://www.microworks.net/";><span style=3D"color: =
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 11pt; color: blue; text-decoration: none;"><span =
id=3D"cid:image003.png@01DBD39E.E9BA0F20">&lt;image003.png&gt;</span></spa=
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