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I have a 1.28 overdrive with a set of Mike Lempert=92s 3.54:1 final drive g=
ears in my 100 and I am very happy with the setup.
It is very tractable around town and relaxed cruising on the highway.
Bill Lawrence
BN1 #554
________________________________
From: Healeys <healeys-bounces@autox.team.net> on behalf of Bob Spidell <bs=
pidell@comcast.net>
Sent: Thursday, March 5, 2020 2:50:47 AM
To: healeys@autox.team.net <healeys@autox.team.net>
Subject: Re: [Healeys] Differential vs BN2 OVERDRIVE
I respectfully disagree. First is so low in a Healey I often started in se=
cond before I put a 3.54 diff in my BJ8. I still start in second if I'm ro=
lling at all, facing downhill or it just won't go into first (plenty of low=
-end torque in the old lump). Second is more usable as well (first and sec=
ond are too close together IMO; I barely get into second before it's time t=
o upshift). I wouldn't mind a .28 OD ratio with a 3.54 diff either.
Bob
On 3/4/2020 11:34 AM, Mark Goodman wrote:
If you change from a 3.90 to a 3.54 rear end you lose most of 1st gear. I =
changed my overdrive on my BJ8 to a BN2
and in 4th gear overdrive my engine operates about 600 RPM lower. It is a =
much better way to go.
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I have a 1.28 overdrive with a set of Mike Lempert=92s 3.54:1 final drive g=
ears in my 100 and I am very happy with the setup.<br>
<br>
It is very tractable around town and relaxed cruising on the highway.<br>
<br>
Bill Lawrence<br>
BN1 #554
<hr style=3D"display:inline-block;width:98%" tabindex=3D"-1">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" st=
yle=3D"font-size:11pt" color=3D"#000000"><b>From:</b> Healeys <healeys-b=
ounces@autox.team.net> on behalf of Bob Spidell <bspidell@comcast.net=
><br>
<b>Sent:</b> Thursday, March 5, 2020 2:50:47 AM<br>
<b>To:</b> healeys@autox.team.net <healeys@autox.team.net><br>
<b>Subject:</b> Re: [Healeys] Differential vs BN2 OVERDRIVE</font>
<div> </div>
</div>
<div>I respectfully disagree. First is so low in a Healey I often sta=
rted in second before I put a 3.54 diff in my BJ8. I still start in s=
econd if I'm rolling at all, facing downhill or it just won't go into first=
(plenty of low-end torque in the old lump).
Second is more usable as well (first and second are too close together IMO=
; I barely get into second before it's time to upshift). I wouldn't m=
ind a .28 OD ratio with a 3.54 diff either.<br>
<br>
Bob<br>
<br>
<br>
<div class=3D"x_moz-cite-prefix">On 3/4/2020 11:34 AM, Mark Goodman wrote:<=
br>
</div>
<blockquote type=3D"cite">
<div class=3D"x_yahoo-style-wrap" style=3D"font-family:Helvetica Neue,Helve=
tica,Arial,sans-serif; font-size:13px">
<div dir=3D"ltr">If you change from a 3.90 to a 3.54 rear end you lose most=
of 1st gear. I changed my overdrive on my BJ8 to a BN2</div>
<div dir=3D"ltr">and in 4th gear overdrive my engine operates about 600 RPM=
lower. It is a much better way to go.</div>
</div>
<br>
</blockquote>
<br>
</div>
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