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
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> -----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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