Performance increases with advance up to a point where excess chamber
pressure is being developed before top dead centre is reached by the piston.
At this point you start to get detonation and performance loss. The best way
to determine maximum advance for your engine is with a stop watch and a long
straight stretch of road (out of the way) or a long hill.
Cheers
Feral Errol
mailto:[EMAIL PROTECTED]
http://www.datrats.com.au/
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of
[EMAIL PROTECTED]
Sent: Monday, January 01, 1601 10:00 AM
To: [EMAIL PROTECTED]
Subject: Re: Timing
Ryan,
You get more performance the more total advance, there is probably a
theoretical limit. The real limit is the octane of the available fuel.
Without
knowing what the mechanical advance is on your dizzy it's impossible to give
you a straight answer for this question and even if i knew there are other
factors that also come into play. This is where EMS controlled engines have
it
all over they're primative carbie models.
To sort of answer your question - yes, most likely it will improve but will
it
cause detonation.
regards
Terry
>
>
> Guys,
> Just wandering what timing advance I should be running, at the moment I am
> running 14 deg on my l20 with about 9.8:1 compression 72 deg cam twin 40mm
> sidrafts ported head and electronic ignition. I run on optimax just
wandering
> would 16 deg increase performance at all ??
> Ryan
>
>
>
>
>
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