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Almost identical to the babe erson 300M that came with my PI TR6. It has
.333 lobe lift, 300 total duration, 104 lobe center angle, 104 intake
separation and 113 exhaust.
On Jun 14, 2016 4:22 PM, "Bill Babcock" <ponobill@gmail.com> wrote:
> I set it up like a Tiltech 298DX and got:
> Intake
> 45 BTC
> 71 ABC
> Exhaust
> 82 ABC
> 35 ATC
>
> Intake duration =3D 296
> Exhaust duration 297
> Intake lobe center 103 ADC
> Exhaust LC 113.5 BTC
> Lobe sep 108.3
> Overlap 80
>
> Still doesn=E2=80=99t look quite right.
>
>
> > On Jun 14, 2016, at 10:46 AM, Bill Babcock <ponobill@gmail.com> wrote:
> >
> > 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 kno=
w.
> >
> >
> >> On Jun 14, 2016, at 10:40 AM, Bill Babcock <ponobill@gmail.com> wrote:
> >>
> >> Oh, and the lift is .372
> >>
> >>
> >>> On Jun 14, 2016, at 10:11 AM, Bill Babcock <ponobill@gmail.com> wrote=
:
> >>>
> >>> 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 late=
r=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. Ton=
y 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 .050/1.4=
5 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?
> >>
> >
>
> _______________________________________________
> fot@autox.team.net
>
> http://www.fot-racing.com
>
> Donate: http://www.team.net/donate.html
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<p dir=3D"ltr">Almost identical to the babe erson 300M that came with my PI=
TR6. It has .333 lobe lift, 300 total duration, 104 lobe center angle, 104=
intake separation and 113 exhaust.<br>
</p>
<div class=3D"gmail_quote">On Jun 14, 2016 4:22 PM, "Bill Babcock"=
; <<a href=3D"mailto:ponobill@gmail.com";>ponobill@gmail.com</a>> wrot=
e:<br type=3D"attribution"><blockquote class=3D"gmail_quote" style=3D"margi=
n:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I set it up like =
a Tiltech 298DX and got:<br>
Intake<br>
45 BTC<br>
71 ABC<br>
Exhaust<br>
82 ABC<br>
35 ATC<br>
<br>
Intake duration =3D 296<br>
Exhaust duration 297<br>
Intake lobe center 103 ADC<br>
Exhaust LC 113.5 BTC<br>
Lobe sep 108.3<br>
Overlap 80<br>
<br>
Still doesn=E2=80=99t look quite right.<br>
<br>
<br>
> On Jun 14, 2016, at 10:46 AM, Bill Babcock <<a href=3D"mailto:ponob=
ill@gmail.com">ponobill@gmail.com</a>> wrote:<br>
><br>
> Searching around on the web, it kind of looks like a TilTech 298Dx, bu=
t 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>
><br>
><br>
>> On Jun 14, 2016, at 10:40 AM, Bill Babcock <<a href=3D"mailto:p=
onobill@gmail.com">ponobill@gmail.com</a>> wrote:<br>
>><br>
>> Oh, and the lift is .372<br>
>><br>
>><br>
>>> On Jun 14, 2016, at 10:11 AM, Bill Babcock <<a href=3D"mail=
to:ponobill@gmail.com">ponobill@gmail.com</a>> wrote:<br>
>>><br>
>>> I=E2=80=99m building a new motor for Peyote from the bits of i=
t=E2=80=99s previous engine. I discovered the front main bearing cap was cr=
acked in half when I decided to freshen the motor. I=E2=80=99ll work on rep=
lacing the cap later=E2=80=94maybe get a billet one made, but in the meanti=
me I=E2=80=99ve run into a minor problem. I don=E2=80=99t know for sure wha=
t cam I have or how it should be set.=C2=A0 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 ge=
t ahold of Ken.<br>
>>><br>
>>> I ballparked where I think the cam might want to be and got th=
is for measurements:<br>
>>><br>
>>> 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>
>>> Intake open .033 @ 36 BTC<br>
>>> Intaake close .033=E2=80=9D @ 76 ABC<br>
>>> Exhaust open .033=E2=80=9D @ 76 ABC<br>
>>> Exhaust close .033=E2=80=9D @ 42 ATC<br>
>>><br>
>>> By my calculations that gives:<br>
>>> Intake duration 292.0 degrees<br>
>>> Exhaust duration 298 degrees<br>
>>> Intake lobe center 110.0 ATC<br>
>>> Exhaust lobe center 107 BTC<br>
>>> Overlap 78<br>
>>> Lobe separation angle 108.5<br>
>>><br>
>>> 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>
>>><br>
>>> What cam is this?<br>
>>> Where should it be set?<br>
>>> How much advance?<br>
>><br>
><br>
<br>
_______________________________________________<br>
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<br>
<a href=3D"http://www.fot-racing.com"; rel=3D"noreferrer" target=3D"_blank">=
http://www.fot-racing.com</a><br>
<br>
et=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/archive"; rel=3D"noreferrer" target=
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Forums: <a href=3D"http://www.team.net/forums"; rel=3D"noreferrer" target=3D=
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iosan@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.team.net=
/mailman/options/fot/triosan@gmail.com</a><br>
<br>
<br>
</blockquote></div>
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/archive
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