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I=E2=80=99m late to this discussion. =20
I look for total advance when timing an engine. If I recall correctly my to=
tal advance is about 32 degrees BTDC at 3000 rpm. Set the initial mechanica=
l timing and have distributor advance provide the rest. This usually involv=
es changing the distributor springs to make the centrifugal advance quicker t=
han factory specs.=20
J DiFede
Sent from my iPhone
> On Apr 25, 2019, at 3:37 AM, PaulHunt73 via Mgs <mgs@autox.team.net> wrote=
:
>=20
> Certainly the factory design overall is the compromise you mention, and as=
said earlier the settings are chosen for a 'worst case' in what can be quit=
e a large variation between engines, plus a safety factor. But given the co=
mponents that come with any particular engine (of our era) 'tuning' can only=
consist of setting the timing and the mixture, and for those there is only o=
ne 'correct' setting. Get those right and you will have the best performanc=
e and mileage, and by 'right' I mean right for your engine and fuel. That m=
ay well mean more advance than book as I found, which gave improved performa=
nce AND mileage, with no engine unreliability over the 6 years and 60k I had=
it..
> =20
> PaulH.
> ----- Original Message -----
> You also have to realize that factory specs are a compromise. They are tr=
ying to balance performance, mileage engine life and in modern cars, emissio=
ns. You can tune it for, let's say mileage, but performance will suffer. C=
onversely, if you tune it for performance mileage will suffer. Tune it the w=
ay you want it to run.
> _______________________________________________
>=20
> Mgs@autox.team.net
> Donate: http://www.team.net/donate.html
> Suggested annual donation $12.75
>=20
> Archive: http://www.team.net/pipermail/mgs
>=20
> Unsubscribe: http://autox.team.net/mailman/options/mgs/difejo1@gmail.com
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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">I=E2=80=99m late to this discussion. =
<div>I look for total advance when timing an engine. If I recall corre=
ctly my total advance is about 32 degrees BTDC at 3000 rpm. Set the in=
itial mechanical timing and have distributor advance provide the rest.  =
;This usually involves changing the distributor springs to make the centrifu=
gal advance quicker than factory specs. <div>J DiFede<br><br><div id=3D=
"AppleMailSignature" dir=3D"ltr">Sent from my iPhone</div><div dir=3D"ltr"><=
br>On Apr 25, 2019, at 3:37 AM, PaulHunt73 via Mgs <<a href=3D"mailto:mgs=
@autox.team.net">mgs@autox.team.net</a>> wrote:<br><br></div><blockquote t=
ype=3D"cite"><div dir=3D"ltr">
<meta content=3D"text/html; charset=3Dwindows-1252" http-equiv=3D"Content-Ty=
pe">
<meta name=3D"GENERATOR" content=3D"MSHTML 8.00.6001.23588">
<style></style>
<div><font size=3D"2">Certainly the factory design overall is the compromise=
you=20
mention, and as said earlier the settings are chosen for a 'worst case'=
in=20
what can be quite a large variation between engines, plus a safety factor.&n=
bsp;=20
But given the components that come with any particular engine (of our=20
era) 'tuning' can only consist of setting the timing and the mixture, a=
nd=20
for those there is only one 'correct' setting. Get those right and you=
=20
will have the best performance and mileage, and by 'right' I mean right for y=
our=20
engine and fuel. That may well mean more advance than book as I found,=
=20
which gave improved performance AND mileage, with no engine unreliabili=
ty=20
over the 6 years and 60k I had it..</font></div>
<div><font size=3D"2"></font> </div>
<div><font size=3D"2">PaulH.</font></div>
<blockquote style=3D"BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADD=
ING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px" dir=3D"ltr">
<div style=3D"FONT: 10pt arial">----- Original Message ----- </div>
<div>You also have to realize that factory specs are a compromise. T=
hey=20
are trying to balance performance, mileage engine life and in modern cars,=
=20
emissions. You can tune it for, let's say mileage, but perform=
ance=20
will suffer. Conversely, if you tune it for performance mileage will=
=20
suffer. Tune it the way you want it to=20
run.<br></div></blockquote>
</div></blockquote><blockquote type=3D"cite"><div dir=3D"ltr"><span>________=
_______________________________________</span><br><span></span><br><span><a h=
ref=3D"mailto:Mgs@autox.team.net";>Mgs@autox.team.net</a></span><br><span>Don=
ate: <a href=3D"http://www.team.net/donate.html";>http://www.team.net/donate.=
html</a></span><br><span>Suggested annual donation $12.75</span><br><s=
pan></span><br><span>Archive: <a href=3D"http://www.team.net/pipermail/mgs";>=
http://www.team.net/pipermail/mgs</a></span><br><span></span><br><span>Unsub=
scribe: <a href=3D"http://autox.team.net/mailman/options/mgs/difejo1@gmail.c=
om">http://autox.team.net/mailman/options/mgs/difejo1@gmail.com</a></span><b=
r></div></blockquote></div></div></body></html>=
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_______________________________________________
Mgs@autox.team.net
Archive: http://www.team.net/pipermail/mgs
Unsubscribe: http://autox.team.net/mailman/options/mgs/mharc@autox.team.net
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