Randy....A couple of questions:
What is your cylinder compression, taken with the engine warm and the
throttle held open? Are you running a vacuum advance on your distributor?
If so, are you setting the timing with the vacuum pipe connected?
Enquiring minds want to know (because your engine sure as heck ought to
ping under load on 87 octane)!
Lawrie
----------
> From: Randy Rees (Volt Computer) <a-rrees@microsoft.com>
> To: 'Mike Lishego' <mikesl@tartan.sapc.edu>; miker15@juno.com
> Cc: mgs@autox.team.net
> Subject: RE: gudgeon pins- or is it?
> Date: Friday, October 31, 1997 11:18 AM
>
> Maybe I'm deaf, but I've got a shaved, port and polished head bringing
> me to 9.5:1 on a 67 engine with a Weber sidedraft and use regular 87
> octane and have not heard a single knock. Timing 20 degrees advanced,
> champion N12YC gapped at .035 and stock cam. Now the question, why do I
> not have a knocking problem, and if I change the cam will I then have a
> knocking problem? Right now with the stock cam the car runs a little
> rich, and the temperature never even reaches 165. is this all good or
> bad.
>
> Thanks
>
> Randy Rees
> Windows NT Test Team
>
> Before you file your next bug, check our FAQ at
> http://ntbeta.microsoft.com/FAQ/faq.asp
>
>
>
> > -----Original Message-----
> > From: Mike Lishego [SMTP:mikesl@tartan.sapc.edu]
> > Sent: Friday, October 31, 1997 12:08 PM
> > To: miker15@juno.com
> > Cc: mgs@autox.team.net
> > Subject: Re: gudgeon pins- or is it?
> >
> > miker15@juno.com wrote:
> >
> > > Then i realised that i was running on a bit more than half choke! -
> > I
> > > stressed the engine a bit by
> > > slowing down then accelerating up a hill in top - no pinking, i then
> > > pushed the choke in and did it again
> > > the pinking returned though not as bad as usual.
> > > i completed the journey with no choke and whilst there was some
> > noise it
> > > was less than usual
> > > this morning on full choke - and with a full tank -
> > nothing......<snip>
> > > The car always runs on 93 octane so nothing has changed there
> >
> > Does your car have a high compression set of pistons in it? I could
> > be wrong, but I
> > think that running high octane gas in a low compression engine causes
> > pinking,
> > doesn't it? Was your car running hot when it was pinking?
> > Someone help me out - I'm not totally positive on this topic!
> > --
> > Michael S. Lishego
> > St. Andrews Presbyterian College
> > Elementary Education Major,
> > English Minor, Class of 1999
> > R.A. of Winston-Salem Hall
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