Subject: Re: [Healeys] Crankshaft

From: Michael Oritt via Healeys <[email-masked]>
Date: Sat, 30 Oct 2021 13:11:48 -0400

--===============0431134381196477218==

--000000000000b07d9805cf950aac
Content-Transfer-Encoding: quoted-printable

A DW crank (and other upgrades) might "transform" a 100's engine in that it
can be run at greater rpm's with less chance of hand-grenading.
In practice our cars will only be driven at high revs--especially
sustained--when on a track, and when the whole engine has hopefully been
blueprinted.

On Sat, Oct 30, 2021 at 7:19 AM David Porter via Healeys <
[email-masked]> wrote:

> Don't over think this. Just because it will rev much better doesn't mean
> it gets used all the time, but it's there. Of course the addition of othe=
r
> lighter bits and an AL head and expensive harmonic balancer will have you
> at a greater expense. Speed costs money, how fast do you want to go?. The
> AH four makes excellent bottom end torque. The huge main caps handle it
> just fine. The original crank is the weak link. DP
>
>
> On October 30, 2021, at 3:22 AM, Michael MacLean via Healeys <
> [email-masked]> wrote:
>
>
> Wouldn't you have to beef up the main caps and add straps across them to
> handle the crank in higher RPM?  Just a thought with only 3 main bearings
> and no harmonic balancer.
> Mike MacLean
>
> On Fri, Oct 29, 2021 at 8:48 PM WILLIAM B LAWRENCE via Healeys <
> [email-masked]> wrote:
>
>> I=E2=80=99d say it doesn=E2=80=99t transform the engine by itself, but i=
t provides a
>> stronger basis for the other mods that will.
>>
>> Bill Lawrence
>> BN1 #554
>> ------------------------------
>> *From:* Healeys <[email-masked]> on behalf of Bob
>> Spidell via Healeys <[email-masked]>
>> *Sent:* Saturday, October 30, 2021 1:16 AM
>> *To:* richard mayor <[email-masked]>
>> *Cc:* [email-masked] <[email-masked]>
>> *Subject:* Re: [Healeys] Crankshaft
>>
>> Does it de-stroke the engine (shorter throws)?
>>
>>
>> On Oct 29, 2021, at 5:05 PM, richard mayor via Healeys <
>> [email-masked]> wrote:
>>
>> =EF=BB=BF
>> But a lightened flywheel will get you there quicker.
>>
>> On Fri, Oct 29, 2021 at 3:19 PM Michael Salter via Healeys <
>> [email-masked]> wrote:
>>
>> David, how does changing the crankshaft give you 2000 additional RPM?
>> Lighter rods and pistons, balancing, cam timing, bigger valves, porting,
>> bigger carbs,  shorter stroke, even increased compression may all
>> contribute to higher RPM but a crank alone will not make any difference,
>> neither will a lightened flywheel.
>> M
>>
>> On Fri., Oct. 29, 2021, 6:03 p.m. David P via Healeys, <
>> [email-masked]> wrote:
>>
>> lighter, stronger, 2000+ additional rpms ,add a wee bit of cam and its a
>> stormer and looks dead stock.. add a real seal and go have some fun.  As=
 I
>> said IMHO.. It ain't cheap. dp  I understand one is going on BAT in the
>> near future. Black over red..
>> On 10/29/2021 3:25 PM, Michael Salter via Healeys wrote:
>>
>> Confirmation bias is a very powerful force.
>>
>> M
>>
>> On Fri., Oct. 29, 2021, 3:35 p.m. Bob Spidell via Healeys, <
>> [email-masked]> wrote:
>>
>> OK, I'll bite: How does a Welch crank transform a a 100? I get that
>> they're steel and stronger, and should withstand more RPM/HP, but does
>> the crank alone do it?
>>
>> Bob
>>
>> On 10/29/2021 8:10 AM, David P via Healeys wrote:
>> >
>> > pretty much hen's teeth is my guess. But a Welsh crank, it transforms
>> > the engine. IMHO  I'm sure Donald wishes they were available in '54
>> >
>> > On 10/28/2021 2:29 PM, Robert Memler via Healeys wrote:
>> >> I need a crankshaft for a 54 b;no. Does anyone have a spare that they
>> >> would be willing to sell?
>> >>
>> >> Thanks, Bob Memler
>> >>
>>
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>> --
>> Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM. 505-352-1378 My=
 World go here: WWW.PORTERBIKES.COM/
>>
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--=20
Best--Michael

--000000000000b07d9805cf950aac
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"color:#3333ff">A DW =
crank (and other upgrades) might &quot;transform&quot; a 100&#39;s engine i=
n that it can be run at greater rpm&#39;s with less chance of hand-grenadin=
g.=C2=A0=C2=A0</div><div class=3D"gmail_default" style=3D"color:#3333ff">In=
 practice our cars will only be driven at high revs--especially sustained--=
when on a track, and when the whole engine has hopefully been blueprinted.<=
/div><div class=3D"gmail_default" style=3D"color:#3333ff"><br></div><div cl=
ass=3D"gmail_default" style=3D"color:#3333ff"><br></div></div><br><div clas=
s=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sat, Oct 30, 202=
1 at 7:19 AM David Porter via Healeys &lt;<a href=3D"mailto:[email-masked]=
eam.net">[email-masked]</a>&gt; wrote:<br></div><blockquote class=
=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rg=
b(204,204,204);padding-left:1ex"><font face=3D"Calibri"><p dir=3D"ltr">Don&=
#39;t over think this. Just because it will rev much better doesn&#39;t mea=
n it gets used all the time, but it&#39;s there. Of course the addition of =
other lighter bits and an AL head and expensive harmonic balancer will have=
 you at a greater expense. Speed costs money, how fast do you want to go?. =
The AH four makes excellent bottom end torque. The huge main caps handle it=
 just fine. The original crank is the weak link. DP</p>
<br><br>On October 30, 2021, at 3:22 AM, Michael MacLean via Healeys &lt;<a=
 href=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]=
m.net</a>&gt; wrote:<br><br><br></font><div dir=3D"ltr"><div>Wouldn&#39;t y=
ou have to beef up the main caps and add straps across them to handle the c=
rank in higher RPM?=C2=A0 Just a thought with only 3 main bearings and no h=
armonic balancer.<br></div><div>Mike MacLean<br></div></div><br><div class=
=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Fri, Oct 29, 2021=
 at 8:48 PM WILLIAM B LAWRENCE via Healeys &lt;<a href=3D"mailto:healeys@au=
tox.team.net" target=3D"_blank">[email-masked]</a>&gt; wrote:<br></=
div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;bor=
der-left:1px solid rgb(204,204,204);padding-left:1ex">

<div>
<div>I=E2=80=99d say it doesn=E2=80=99t transform the engine by itself, but=
 it provides a stronger basis for the other mods that will.</div>
<div><br>
</div>
<div>Bill Lawrence</div>
<div>BN1 #554</div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"gmail-m_-9036354135352351034gmail-m_-682061499727999183divRplyFw=
dMsg" dir=3D"ltr"><font style=3D"font-size:11pt" face=3D"Calibri, sans-seri=
f" color=3D"#000000"><b>From:</b> Healeys &lt;<a href=3D"mailto:healeys-bou=
[email-masked]" target=3D"_blank">[email-masked]</a>&g=
t; on behalf of Bob Spidell via Healeys &lt;<a href=3D"mailto:healeys@autox=
.team.net" target=3D"_blank">[email-masked]</a>&gt;<br>
<b>Sent:</b> Saturday, October 30, 2021 1:16 AM<br>
<b>To:</b> richard mayor &lt;<a href=3D"mailto:[email-masked]" targe=
t=3D"_blank">[email-masked]</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:[email-masked]" target=3D"_blank">heal=
[email-masked]</a> &lt;<a href=3D"mailto:[email-masked]" target=
=3D"_blank">[email-masked]</a>&gt;<br>
<b>Subject:</b> Re: [Healeys] Crankshaft</font>
<div>=C2=A0</div>
</div>
<div dir=3D"auto">
<div dir=3D"ltr"></div>
<div dir=3D"ltr">Does it de-stroke the engine (shorter throws)?</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr"><br>
<blockquote type=3D"cite">On Oct 29, 2021, at 5:05 PM, richard mayor via He=
aleys &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">heale=
[email-masked]</a>&gt; wrote:<br>
<br>
</blockquote>
</div>
<blockquote type=3D"cite">
<div dir=3D"ltr">=EF=BB=BF
<div dir=3D"ltr">But a lightened flywheel will get you there quicker.<br>
</div>
<br>
<div>
<div dir=3D"ltr">On Fri, Oct 29, 2021 at 3:19 PM Michael Salter via Healeys=
 &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">healeys@au=
tox.team.net</a>&gt; wrote:<br>
</div>
<blockquote style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">
<div dir=3D"auto">David, how does changing the crankshaft give you 2000 add=
itional RPM?
<div dir=3D"auto">Lighter rods and pistons, balancing, cam timing, bigger v=
alves, porting, bigger carbs,=C2=A0 shorter stroke, even increased compress=
ion may all contribute to higher RPM but a crank alone will not make any di=
fference, neither will a lightened flywheel.=C2=A0</div>
<div dir=3D"auto">M</div>
</div>
<br>
<div>
<div dir=3D"ltr">On Fri., Oct. 29, 2021, 6:03 p.m. David P via Healeys, &lt=
;<a href=3D"mailto:[email-masked]" target=3D"_blank">healeys@autox.=
team.net</a>&gt; wrote:<br>
</div>
<blockquote style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">
<div>
<p>lighter, stronger, 2000+ additional rpms ,add a wee bit of cam and its a=
 stormer and looks dead stock.. add a real seal and go have some fun.=C2=A0=
 As I said IMHO.. It ain&#39;t cheap. dp=C2=A0 I understand one is going on=
 BAT in the near future. Black over red..<br>
</p>
<div>On 10/29/2021 3:25 PM, Michael Salter via Healeys wrote:<br>
</div>
<blockquote type=3D"cite">
<div dir=3D"auto">Confirmation bias is a very powerful force.
<div dir=3D"auto"><br>
</div>
<div dir=3D"auto">M</div>
</div>
<br>
<div>
<div dir=3D"ltr">On Fri., Oct. 29, 2021, 3:35 p.m. Bob Spidell via Healeys,=
 &lt;<a href=3D"mailto:[email-masked]" rel=3D"noreferrer" target=3D=
"_blank">[email-masked]</a>&gt; wrote:<br>
</div>
<blockquote style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">
OK, I&#39;ll bite: How does a Welch crank transform a a 100? I get that <br=
they&#39;re steel and stronger, and should withstand more RPM/HP, but does =
<br>
the crank alone do it?<br>
<br>
Bob<br>
<br>
On 10/29/2021 8:10 AM, David P via Healeys wrote:<br>
&gt;<br>
&gt; pretty much hen&#39;s teeth is my guess. But a Welsh crank, it transfo=
rms <br>
&gt; the engine. IMHO=C2=A0 I&#39;m sure Donald wishes they were available =
in &#39;54<br>
&gt;<br>
&gt; On 10/28/2021 2:29 PM, Robert Memler via Healeys wrote:<br>
&gt;&gt; I need a crankshaft for a 54 b;no. Does anyone have a spare that t=
hey <br>
&gt;&gt; would be willing to sell?<br>
&gt;&gt;<br>
&gt;&gt; Thanks, Bob Memler<br>
&gt;&gt;<br>
<br>
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<pre cols=3D"72">--=20
Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM. 505-352-1378 My Wo=
rld go here: <a href=3D"http://WWW.PORTERBIKES.COM/" rel=3D"noreferrer" tar=
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</blockquote></div><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr"=
 class=3D"gmail_signature"><font color=3D"#3333ff">Best--Michael</font></di=
v>

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