<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">It’s the cam that was working so well. Pretty sure it’s a BFE, but no, I”m not letting this go until I know. Right now the numbers are totally screwball, but I’ll figure it out. <div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jun 14, 2016, at 1:46 PM, Kas Kastner <<a href="mailto:kaskastner@gmail.com" class="">kaskastner@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">It is difficult for me to believe that Bill is just going to say "oh what the hell, I'll just put it in" :-)</div><div class="gmail_extra"><br clear="all" class=""><div class=""><div class="gmail_signature" data-smartmail="gmail_signature"><p class=""><strong class=""><font color="#000099" class="">Never be beaten by equipment.</font></strong></p></div></div>
<br class=""><div class="gmail_quote">On Tue, Jun 14, 2016 at 10:46 AM, Bill Babcock <span dir="ltr" class=""><<a href="mailto:ponobill@gmail.com" target="_blank" class="">ponobill@gmail.com</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Searching around on the web, it kind of looks like a TilTech 298Dx, but I don’t recall buying a cam from Larry and Tony Garmey doesn’t think so either. I could just set it up as if it were, but it would be good to know.<br class="">
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> On Jun 14, 2016, at 10:40 AM, Bill Babcock <<a href="mailto:ponobill@gmail.com" class="">ponobill@gmail.com</a>> wrote:<br class="">
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> Oh, and the lift is .372<br class="">
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>> On Jun 14, 2016, at 10:11 AM, Bill Babcock <<a href="mailto:ponobill@gmail.com" class="">ponobill@gmail.com</a>> wrote:<br class="">
>><br class="">
>> I’m building a new motor for Peyote from the bits of it’s previous engine. I discovered the front main bearing cap was cracked in half when I decided to freshen the motor. I’ll work on replacing the cap later—maybe get a billet one made, but in the meantime I’ve run into a minor problem. I don’t know for sure what cam I have or how it should be set. Tony Garmey says it’s a BFE cam, but I can’t find any specs for those and can’t get ahold of Ken.<br class="">
>><br class="">
>> I ballparked where I think the cam might want to be and got this for measurements:<br class="">
>><br class="">
>> Reading the Intake and exhaust valve movement from the spring retainers I use 0.033” as the open/close height which is .050/1.45 which as I recall is the ratio of the stock rockers”<br class="">
>> Intake open .033 @ 36 BTC<br class="">
>> Intaake close .033” @ 76 ABC<br class="">
>> Exhaust open .033” @ 76 ABC<br class="">
>> Exhaust close .033” @ 42 ATC<br class="">
>><br class="">
>> By my calculations that gives:<br class="">
>> Intake duration 292.0 degrees<br class="">
>> Exhaust duration 298 degrees<br class="">
>> Intake lobe center 110.0 ATC<br class="">
>> Exhaust lobe center 107 BTC<br class="">
>> Overlap 78<br class="">
>> Lobe separation angle 108.5<br class="">
>><br class="">
>> Pretty sure this isn’t exactly where it needs to be. I have a vernier sprocket so I can adjust the timing precisely. My questions are:<br class="">
>><br class="">
>> What cam is this?<br class="">
>> Where should it be set?<br class="">
>> How much advance?<br class="">
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