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Hey Tim,
Happy belated 3/17!
There=E2=80=99s a guy named Kas (can=E2=80=99t remember the last name) that d=
id some dyno tuning awhile back - he even wrote a book or two about it=F0=9F=
=A4=AA.
But in all seriousness, I=E2=80=99ve done mine by the (Comp Prep Manual) boo=
k. Base and total is easy but it takes a bunch of fiddling to get the =E2=80=
=9CKas curve=E2=80=9D. Has worked great but I=E2=80=99ll admit that I=E2=80=99=
ve never gone beyond that.
Greg =E2=80=9CLunker=E2=80=9D Hilyer=20
Albuquerque NM
> On Mar 19, 2021, at 4:27 PM, timmmurphh--- via Fot <fot@autox.team.net> wr=
ote:
>=20
> What advance curve are folks using in their race engines? I have 87mm pist=
ons, a Kastner G3 cam and about a 12:1 compression ratio. I am using about 1=
9 degrees advance at idle (no centrifugal advance) and 30 degrees advance at=
3000 RPM. I don=E2=80=99t know what I have at higher RPM=E2=80=99s because=
I never looked. I=E2=80=99m currently doing an engine rebuild so I will hav=
e to look what I=E2=80=99ve got at the higher RPM=E2=80=99s when I get the e=
ngine running. I=E2=80=99m curious as to what others are using and if anyone=
has done any testing on a dyno with different advance curves.
> =20
> Thanks in advance for your input.
> =20
> Tim Murphy
> #317 BRG TR4
> _______________________________________________
> fot@autox.team.net
>=20
> http://www.fot-racing.com
>=20
> Donate: http://www.team.net/donate.html
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ahoo.com
>=20
>=20
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div dir=3D"ltr"></div><div dir=3D"ltr">Hey=
Tim,</div><div dir=3D"ltr">Happy belated 3/17!</div><div dir=3D"ltr">There=E2=
=80=99s a guy named Kas (can=E2=80=99t remember the last name) that did some=
dyno tuning awhile back - he even wrote a book or two about it=F0=9F=A4=AA.=
</div><div dir=3D"ltr">But in all seriousness, I=E2=80=99ve done mine by the=
(Comp Prep Manual) book. Base and total is easy but it takes a bunch of fid=
dling to get the =E2=80=9CKas curve=E2=80=9D. Has worked great but I=E2=80=99=
ll admit that I=E2=80=99ve never gone beyond that.</div><div dir=3D"ltr">Gre=
g =E2=80=9CLunker=E2=80=9D Hilyer </div><div dir=3D"ltr">Albuquerque NM=
</div><div dir=3D"ltr"><br>On Mar 19, 2021, at 4:27 PM, timmmurphh--- via Fo=
t <<a href=3D"mailto:fot@autox.team.net";>fot@autox.team.net</a>> wrote=
:<br><br></div><blockquote type=3D"cite"><div dir=3D"ltr"><meta http-equiv=3D=
"Content-Type" content=3D"text/html; charset=3Dus-ascii"><meta name=3D"Gener=
ator" content=3D"Microsoft Word 15 (filtered medium)"><style><!--
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<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--><div class=3D"WordSection1"><p class=3D"Ms=
oNormal">What advance curve are folks using in their race engines? I have 87=
mm pistons, a Kastner G3 cam and about a 12:1 compression ratio. I am using a=
bout 19 degrees advance at idle (no centrifugal advance) and 30 degrees adva=
nce at 3000 RPM. I don=E2=80=99t know what I have at higher RPM=E2=80=99=
s because I never looked. I=E2=80=99m currently doing an engine rebuild so I=
will have to look what I=E2=80=99ve got at the higher RPM=E2=80=99s when I g=
et the engine running. I=E2=80=99m curious as to what others are using and i=
f anyone has done any testing on a dyno with different advance curves.<o:p><=
/o:p></p><p class=3D"MsoNormal"><o:p> </o:p></p><p class=3D"MsoNormal">=
Thanks in advance for your input.<o:p></o:p></p><p class=3D"MsoNormal"><o:p>=
</o:p></p><p class=3D"MsoNormal">Tim Murphy<o:p></o:p></p><p class=3D"=
MsoNormal">#317 BRG TR4<o:p></o:p></p></div></div></blockquote><blockquote t=
ype=3D"cite"><div dir=3D"ltr"><span>________________________________________=
_______</span><br><span><a href=3D"mailto:fot@autox.team.net";>fot@autox.team=
.net</a></span><br><span></span><br><span><a href=3D"http://www.fot-racing.c=
om">http://www.fot-racing.com</a></span><br><span></span><br><span>Donate: <=
a href=3D"http://www.team.net/donate.html";>http://www.team.net/donate.html</=
a></span><br><span>Archive: <a href=3D"http://autox.team.net/archive";>http:/=
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n></span><br><span></span><br></div></blockquote></body></html>=
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
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