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Re: [Fot] Mystery cam

To: Preston Kaenel <kaenel@pacbell.net>
Subject: Re: [Fot] Mystery cam
From: Bill Babcock <ponobill@gmail.com>
Date: Tue, 14 Jun 2016 20:39:05 -0700
Cc: Triumph 'Friends of Triumph <fot@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
References: <294DA329-A981-49E4-BE88-7A1E0B27DA73@ponostyle.com> <88D4C783-ADF2-4987-ABCC-AABA8AC61C16@gmail.com> <632EB0ED-AF33-4C73-9EF4-A703C801B4C3@gmail.com> <CAGiQU1A5aH+8hB1mOV=SvxbMHEJhEuv4+Jv9Su8gXqja03QYrg@mail.gmail.com> <341A3DAA-48A1-41AF-9AFB-460FFA0FFA37@gmail.com> <2021860242.2686003.1465961609178.JavaMail.yahoo@mail.yahoo.com>
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Thanks so much, I can get there from here. It looks about right. Just =
roughing it out in my head if I moved the intake lobe center to 104 =
I=E2=80=99d be right about there. I think I=E2=80=99m going to give it a =
try at 108 and get some dyno time to play with it.=20

> On Jun 14, 2016, at 8:33 PM, Preston Kaenel <kaenel@pacbell.net> =
wrote:
>=20
> Attached are two cam cards.
> BFE #23 lobe profile(.376 lift) on 108deg lobe center
> BFE #24 lobe profile(.370lift) on 108deg lobe center
>=20
> To my knowledge these are the only two lobe profiles over the last 20 =
years for BFE cams both with Steve and prior with Babe Erson. Lobe =
centers have varied from 103 to 108. Even with inverted math your lobe =
center math should be accurate. If the attachments get stripped, I'll =
send them to you directly. Don't get much TR time these day, but saw =
this and hopefully could help a bit.
>=20
> Preston
>=20
>=20
> On Tuesday, June 14, 2016 7:58 PM, Bill Babcock <ponobill@gmail.com> =
wrote:
>=20
>=20
> It=E2=80=99s the cam that was working so well. Pretty sure it=E2=80=99s =
a BFE, but no, I=E2=80=9Dm not letting this go until I know. Right now =
the numbers are totally screwball, but I=E2=80=99ll figure it out.=20
>=20
>=20
>> On Jun 14, 2016, at 1:46 PM, Kas Kastner <kaskastner@gmail.com =
>>=20
>> It is difficult for me to believe that Bill is just going to say "oh =
what the hell, I'll just put it in"   :-)
>>=20
>> Never be beaten by equipment.
>>=20
>> On Tue, Jun 14, 2016 at 10:46 AM, Bill Babcock <ponobill@gmail.com =
>> Searching around on the web, it kind of looks like a TilTech 298Dx, =
but I don=E2=80=99t recall buying a cam from Larry and Tony Garmey =
doesn=E2=80=99t think so either. I could just set it up as if it were, =
but it would be good to know.
>>=20
>>=20
>> > On Jun 14, 2016, at 10:40 AM, Bill Babcock <ponobill@gmail.com =
>> >
>> > Oh, and the lift is .372
>> >
>> >
>> >> On Jun 14, 2016, at 10:11 AM, Bill Babcock <ponobill@gmail.com =
>> >>
>> >> I=E2=80=99m building a new motor for Peyote from the bits of =
it=E2=80=99s previous engine. I discovered the front main bearing cap =
was cracked in half when I decided to freshen the motor. I=E2=80=99ll =
work on replacing the cap later=E2=80=94maybe get a billet one made, but =
in the meantime I=E2=80=99ve run into a minor problem. I don=E2=80=99t =
know for sure what cam I have or how it should be set.  Tony Garmey says =
it=E2=80=99s a BFE cam, but I can=E2=80=99t find any specs for those and =
can=E2=80=99t get ahold of Ken.
>> >>
>> >> I ballparked where I think the cam might want to be and got this =
for measurements:
>> >>
>> >> Reading the Intake and exhaust valve movement from the spring =
retainers I use 0.033=E2=80=9D as the open/close height which is =
.050/1.45 which as I recall is the ratio of the stock rockers=E2=80=9D
>> >> Intake open .033 @ 36 BTC
>> >> Intaake close .033=E2=80=9D @ 76 ABC
>> >> Exhaust open .033=E2=80=9D @ 76 ABC
>> >> Exhaust close .033=E2=80=9D @ 42 ATC
>> >>
>> >> By my calculations that gives:
>> >> Intake duration 292.0 degrees
>> >> Exhaust duration 298 degrees
>> >> Intake lobe center 110.0 ATC
>> >> Exhaust lobe center 107 BTC
>> >> Overlap 78
>> >> Lobe separation angle 108.5
>> >>
>> >> Pretty sure this isn=E2=80=99t exactly where it needs to be. I =
have a vernier sprocket so I can adjust the timing precisely. My =
questions are:
>> >>
>> >> What cam is this?
>> >> Where should it be set?
>> >> How much advance?
>> >
>>=20
>> _______________________________________________
>>=20
>> http://www.fot-racing.com/ <http://www.fot-racing.com/>
>>=20
>> Donate: http://www.team.net/donate.html =
<http://www.team.net/donate.html>
>> Archive: http://www.team.net/archive <http://www.team.net/archive>
>> Forums: http://www.team.net/forums <http://www.team.net/forums>
>> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/kaskastner@gmail.com =
<http://autox.team.net/mailman/options/fot/kaskastner@gmail.com>
>>=20
>>=20
>>=20
>=20
>=20
> _______________________________________________
>=20
> http://www.fot-racing.com/ <http://www.fot-racing.com/>
>=20
> Donate: http://www.team.net/donate.html =
<http://www.team.net/donate.html>
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> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/kaenel@pacbell.net =
<http://autox.team.net/mailman/options/fot/kaenel@pacbell.net>
>=20
>=20
>=20
>=20
> <BFE M23-108.pdf><BFE M24-108.pdf>


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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">Thanks so much, I can get there from here. It looks about =
right. Just roughing it out in my head if I moved the intake lobe center =
to 104 I=E2=80=99d be right about there. I think I=E2=80=99m going to =
give it a try at 108 and get some dyno time to play with it.&nbsp;<div =
class=3D""><br class=3D""><div><blockquote type=3D"cite" class=3D""><div =
class=3D"">On Jun 14, 2016, at 8:33 PM, Preston Kaenel &lt;<a =
href=3D"mailto:kaenel@pacbell.net"; class=3D"">kaenel@pacbell.net</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><div =
class=3D""><div style=3D"background-color: rgb(255, 255, 255); =
font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida =
Grande', sans-serif; font-size: 16px;" class=3D""><div =
id=3D"yui_3_16_0_ym19_1_1465790522807_22258" class=3D""><span =
id=3D"yui_3_16_0_ym19_1_1465790522807_22257" class=3D"">Attached are two =
cam cards.</span></div><div id=3D"yui_3_16_0_ym19_1_1465790522807_22438" =
class=3D""><span id=3D"yui_3_16_0_ym19_1_1465790522807_22437" =
class=3D"">BFE #23 lobe profile(.376 lift) on 108deg lobe =
center</span></div><div id=3D"yui_3_16_0_ym19_1_1465790522807_22455" =
class=3D""><span id=3D"yui_3_16_0_ym19_1_1465790522807_22456" =
class=3D"">BFE #24 lobe profile(.370lift) on 108deg lobe =
center</span></div><div id=3D"yui_3_16_0_ym19_1_1465790522807_22531" =
class=3D""><span class=3D""></span><br class=3D""></div><div =
id=3D"yui_3_16_0_ym19_1_1465790522807_22533" dir=3D"ltr" class=3D""><span =
id=3D"yui_3_16_0_ym19_1_1465790522807_22532" class=3D"">To my knowledge =
these are the only two lobe profiles over the last 20 years for BFE cams =
both with Steve and prior with Babe Erson. Lobe centers have varied from =
103 to 108. Even with inverted math your lobe center math should be =
accurate. If the attachments get stripped, I'll send them to you =
directly. Don't get much TR time these day, but saw this and hopefully =
could help a bit.</span></div><div dir=3D"ltr" class=3D""><span =
class=3D""></span><br class=3D""></div><div dir=3D"ltr" class=3D""><span =
class=3D"">Preston</span></div> <div class=3D"qtdSeparateBR"><br =
class=3D""><br class=3D""></div><div class=3D"yahoo_quoted" =
style=3D"display: block;"> <div style=3D"font-family: HelveticaNeue, =
Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: =
16px;" class=3D""> <div style=3D"font-family: HelveticaNeue, Helvetica =
Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" =
class=3D""> <div dir=3D"ltr" class=3D""><font face=3D"Arial" size=3D"2" =
class=3D""> On Tuesday, June 14, 2016 7:58 PM, Bill Babcock &lt;<a =
href=3D"mailto:ponobill@gmail.com"; class=3D"">ponobill@gmail.com</a>&gt; =
wrote:<br class=3D""></font></div>  <br class=3D""><br class=3D""> <div =
class=3D"y_msg_container"><div id=3D"yiv9602555093" class=3D""><div =
class=3D"">It=E2=80=99s the cam that was working so well. Pretty sure =
it=E2=80=99s a BFE, but no, I=E2=80=9Dm not letting this go until I =
know. Right now the numbers are totally screwball, but I=E2=80=99ll =
figure it out.&nbsp;<div class=3D"yiv9602555093"><br =
class=3D"yiv9602555093"></div><div class=3D"yiv9602555093"><br =
class=3D"yiv9602555093"><div class=3D""><blockquote =
class=3D"yiv9602555093" type=3D"cite"><div class=3D"yiv9602555093">On =
Jun 14, 2016, at 1:46 PM, Kas Kastner &lt;<a class=3D"yiv9602555093" =
href=3D"mailto:kaskastner@gmail.com"; target=3D"_blank" rel=3D"nofollow" =
ymailto=3D"mailto:kaskastner@gmail.com";>kaskastner@gmail.com</a>&gt; =
wrote:</div><br class=3D"yiv9602555093Apple-interchange-newline"><div =
class=3D"yiv9602555093"><div class=3D"yiv9602555093" dir=3D"ltr">It is =
difficult for me to believe that Bill is just going to say "oh what the =
hell, I'll just put it in"&nbsp;&nbsp; :-)</div><div =
class=3D"yiv9602555093gmail_extra"><br class=3D"yiv9602555093" =
clear=3D"all"><div class=3D"yiv9602555093"><div =
class=3D"yiv9602555093gmail_signature"><div =
class=3D"yiv9602555093"><strong class=3D"yiv9602555093"><font =
class=3D"yiv9602555093" color=3D"#000099">Never be beaten by =
equipment.</font></strong></div></div></div>
<br class=3D"yiv9602555093"><div class=3D"yiv9602555093gmail_quote">On =
Tue, Jun 14, 2016 at 10:46 AM, Bill Babcock <span class=3D"yiv9602555093" =
dir=3D"ltr">&lt;<a class=3D"yiv9602555093" =
href=3D"mailto:ponobill@gmail.com"; target=3D"_blank" rel=3D"nofollow" =
ymailto=3D"mailto:ponobill@gmail.com";>ponobill@gmail.com</a>&gt;</span> =
wrote:<br class=3D"yiv9602555093"><blockquote =
class=3D"yiv9602555093gmail_quote" style=3D"margin: 0px 0px 0px 0.8ex; =
padding-left: 1ex; border-left-color: rgb(204, 204, 204); =
border-left-width: 1px; border-left-style: solid;">Searching around on =
the web, it kind of looks like a TilTech 298Dx, but I don=E2=80=99t =
recall buying a cam from Larry and Tony Garmey doesn=E2=80=99t think so =
either. I could just set it up as if it were, but it would be good to =
know.<br class=3D"yiv9602555093">
<br class=3D"yiv9602555093">
<br class=3D"yiv9602555093">
&gt; On Jun 14, 2016, at 10:40 AM, Bill Babcock &lt;<a =
class=3D"yiv9602555093" href=3D"mailto:ponobill@gmail.com"; =
target=3D"_blank" rel=3D"nofollow" =
ymailto=3D"mailto:ponobill@gmail.com";>ponobill@gmail.com</a>&gt; =
wrote:<br class=3D"yiv9602555093">
&gt;<br class=3D"yiv9602555093">
&gt; Oh, and the lift is .372<br class=3D"yiv9602555093">
&gt;<br class=3D"yiv9602555093">
&gt;<br class=3D"yiv9602555093">
&gt;&gt; On Jun 14, 2016, at 10:11 AM, Bill Babcock &lt;<a =
class=3D"yiv9602555093" href=3D"mailto:ponobill@gmail.com"; =
target=3D"_blank" rel=3D"nofollow" =
ymailto=3D"mailto:ponobill@gmail.com";>ponobill@gmail.com</a>&gt; =
wrote:<br class=3D"yiv9602555093">
&gt;&gt;<br class=3D"yiv9602555093">
&gt;&gt; I=E2=80=99m building a new motor for Peyote from the bits of =
it=E2=80=99s previous engine. I discovered the front main bearing cap =
was cracked in half when I decided to freshen the motor. I=E2=80=99ll =
work on replacing the cap later=E2=80=94maybe get a billet one made, but =
in the meantime I=E2=80=99ve run into a minor problem. I don=E2=80=99t =
know for sure what cam I have or how it should be set.&nbsp; Tony Garmey =
says it=E2=80=99s a BFE cam, but I can=E2=80=99t find any specs for =
those and can=E2=80=99t get ahold of Ken.<br class=3D"yiv9602555093">
&gt;&gt;<br class=3D"yiv9602555093">
&gt;&gt; I ballparked where I think the cam might want to be and got =
this for measurements:<br class=3D"yiv9602555093">
&gt;&gt;<br class=3D"yiv9602555093">
&gt;&gt; Reading the Intake and exhaust valve movement from the spring =
retainers I use 0.033=E2=80=9D as the open/close height which is =
.050/1.45 which as I recall is the ratio of the stock rockers=E2=80=9D<br =
class=3D"yiv9602555093">
&gt;&gt; Intake open .033 @ 36 BTC<br class=3D"yiv9602555093">
&gt;&gt; Intaake close .033=E2=80=9D @ 76 ABC<br class=3D"yiv9602555093">
&gt;&gt; Exhaust open .033=E2=80=9D @ 76 ABC<br class=3D"yiv9602555093">
&gt;&gt; Exhaust close .033=E2=80=9D @ 42 ATC<br class=3D"yiv9602555093">
&gt;&gt;<br class=3D"yiv9602555093">
&gt;&gt; By my calculations that gives:<br class=3D"yiv9602555093">
&gt;&gt; Intake duration 292.0 degrees<br class=3D"yiv9602555093">
&gt;&gt; Exhaust duration 298 degrees<br class=3D"yiv9602555093">
&gt;&gt; Intake lobe center 110.0 ATC<br class=3D"yiv9602555093">
&gt;&gt; Exhaust lobe center 107 BTC<br class=3D"yiv9602555093">
&gt;&gt; Overlap 78<br class=3D"yiv9602555093">
&gt;&gt; Lobe separation angle 108.5<br class=3D"yiv9602555093">
&gt;&gt;<br class=3D"yiv9602555093">
&gt;&gt; Pretty sure this isn=E2=80=99t exactly where it needs to be. I =
have a vernier sprocket so I can adjust the timing precisely. My =
questions are:<br class=3D"yiv9602555093">
&gt;&gt;<br class=3D"yiv9602555093">
&gt;&gt; What cam is this?<br class=3D"yiv9602555093">
&gt;&gt; Where should it be set?<br class=3D"yiv9602555093">
&gt;&gt; How much advance?<br class=3D"yiv9602555093">
&gt;<br class=3D"yiv9602555093">
<br class=3D"yiv9602555093">
_______________________________________________<br =
class=3D"yiv9602555093">
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class=3D"yiv9602555093">
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<br class=3D"yiv9602555093">
</blockquote></div><br class=3D"yiv9602555093"></div>
</div></blockquote></div><br class=3D"yiv9602555093"></div></div></div><br=
 class=3D"">_______________________________________________<br =
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class=3D""><br class=3D"">Donate: <a =
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><br class=3D""><br class=3D""><br class=3D""><br class=3D""><br =
class=3D""></div>  </div> </div>  </div></div></div><span =
id=3D"cid:fe280bf0-49aa-ed63-c705-fe6f66c2ef77@yahoo.com">&lt;BFE =
M23-108.pdf&gt;</span><span =
id=3D"cid:53f1af16-9032-8552-ca2d-3ac53fd0872b@yahoo.com">&lt;BFE =
M24-108.pdf&gt;</span></div></blockquote></div><br =
class=3D""></div></body></html>=

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