<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">A lighter flywheel also effects torque reaction of the engine block. As the throttle is blipped the engine block reacts and whips sideways in the opposite direction to the crank. You all know this. With a lighter flywheel the engine reacts quicker (obvs).<div>My first Healey, a BJ8, had a hot cam (lumpy tickover) and a lightened flywheel. All good you might think. Unfortunately the torque reaction was enough to crack and peel the engine mounts from the top of the chassis rails. Now I understand why the works cars had reinforcement on between the mounts and the rails.</div><div><br><div dir="ltr">Alan - from my iPad</div><div dir="ltr"><br><blockquote type="cite">On 11 Mar 2021, at 07:21, Kees Oudesluijs via Healeys <healeys@autox.team.net> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<p>A lightened flywheel does <u><i><b>not</b></i></u> reduce the
torque the engine delivers, It reduces the inertia of the engine
which will result in the engine revving up or slowing down faster
to enable quicker shifts (gears and overdrive) and a slightly
acceleration. It also means that when starting of from standstill
you may stall easy initially and the gear changes are effected as
you have to operate the clutch pedal with much more feel.
Drive-ability will suffer. <br>
</p>
<p>Kees Oudesluijs</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">Op 11-3-2021 om 07:41 schreef John
Spaur via Healeys:<br>
</div>
<blockquote type="cite" cite="mid:000001d71641$893dc110$9bb94330$@sbcglobal.net">
<pre class="moz-quote-pre" wrap="">I have a DWR lightened flywheel but I wish I had known more before installing it. A lightened flywheel reduces the torque. Also the OD functions differently. There is not a lot of difference between the RPM's in third and fourth gears. I am not sure how to explain it but hopefully someone else will.
John
-----Original Message-----
From: Healeys [<a class="moz-txt-link-freetext" href="mailto:healeys-bounces@autox.team.net">mailto:healeys-bounces@autox.team.net</a>] On Behalf Of mitchell simmons
Sent: Wednesday, March 10, 2021 11:30 AM
To: <a class="moz-txt-link-abbreviated" href="mailto:healeys@autox.team.net">healeys@autox.team.net</a>
Subject: [Healeys] Lightened Flywheel
Hello,
Anybody lightening and balancing flywheels ?………TOMS TOYS use to…. but no more
Thanks
Mitch
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</pre>
</blockquote>
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