I am at the same place with my 1966 TR4A IRS. My goal is to rebuild both the
Tach and Speedo and replace whatever I must to get both accurate once more.
Please post all communications on this subject to the list. I will be in the
background listening and learning.
TW
--
Thomas P. Winslow
1966 TR4A IRS - CTC57665L <> 1968 TR250 - CD4783L <> 1968 TR250 - CD5272L <>
1980 MGB LE GVVDJ2AG503563
189 Hicks Creek Road, Troutman, NC 28166
h704-528-5868 * f704-528-5868 * p704-878-1157
E-Mail: winslow@vnet.net * tom_winslow@msn.com
Web Page: http://www.iredell.com/triumph.html <>
http://www.iredell.com/gmc4sale.html
-----Original Message-----
From: owner-triumphs@autox.team.net
[mailto:owner-triumphs@autox.team.net]On Behalf Of Tony Rhodes
Sent: Sunday, November 15, 1998 8:27 AM
To: INTERNET:triumphs@autox.team.net
Subject: Speedo error & differential ratio
I am checking out my new 4A. I see that the speedo is pretty far off. I
am
not sure what differential unit is in the car. I am running 185/70 tires.
I did not do
a measured mile yet, but I am trying to get info to use when I have the
measured mile data. The speedo says 1184 as its ratio.
When the speedo says _approximately_ 65MPH (you know the up & down
waver of those speedos) I seem to be going noticably under 60, probably
55mph.
This is in overdrive! My tach is non-functional right now, so I can't tell
the rpms except it
seemed around 3000 or somewhat under.
I am interested in info that I can use to calculate my overall ratio and
supposing
normal transmission ratios, the differential ratio.
Is there a way to tell the diff ratio by looking at it?
I know this was discussed before, but please bear with me. Maybe this is a
topic for the FAQs!!
-Tony
ARhodes@compuserve.com
CTC64342-L(-O) getting sorted out
CTC73336-L in a million pieces being restored
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