Oh, and the lift is .372
> On Jun 14, 2016, at 10:11 AM, Bill Babcock <ponobill@gmail.com> wrote:
>
> Iâ??m building a new motor for Peyote from the bits of itâ??s previous
> engine. I discovered the front main bearing cap was cracked in half when I
> decided to freshen the motor. Iâ??ll work on replacing the cap laterâ??maybe
> get a billet one made, but in the meantime Iâ??ve run into a minor problem. I
> donâ??t know for sure what cam I have or how it should be set. Tony Garmey
> says itâ??s a BFE cam, but I canâ??t find any specs for those and canâ??t 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
> 0.033â?? as the open/close height which is .050/1.45 which as I recall is the
> ratio of the stock rockersâ??
> Intake open .033 @ 36 BTC
> Intaake close .033â?? @ 76 ABC
> Exhaust open .033â?? @ 76 ABC
> Exhaust close .033â?? @ 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 isnâ??t 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?
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