What does stoich mean?

[CSH-HQ]

Also, intake closing point can have as large of effect as low compression.
Grumpy


>With low compression and high octane, optimum spark may be less advance than
>the detonation limit.  Use performance for WOT settings and economy or
>vacuum for part throttle.
>
>Gary Derian <gderian at oh.verio.com>
>>
>> sooo start the spark table FLAT and tune the fuel for
>> EGT(substituted for o2, the "stoich" link in this thread), then
>> advance the spark until detonation then back off a click? <??> I may
>> be starting way too low on darwin's scale for you to want to go on
>> and I don't blame you.
>>
>> the calibration values that the manufaccturer has arrived at are done
>> with formulas then tweaked with dyno's or what??
>>
>> > Nope, and nope.
>> >
>> > Tune against the clock, and as little timing, as consistant with time,
>and
>> > fuel rich (slighter than best time).
>> > If you run right at detonation, then any error might force ya into
>detonaton
>> > spelled $$$$$$$$$$$$$$$$
>> > Bruce
>> >
>> >
>> >
>> > >In a message dated 8/19/99 12:57:52 PM Eastern Daylight Time,
>> > >dzug at delanet.com writes:
>> > >
>> > ><< So if given a choice to either
>> > >
>> > > a) increase spark asvance until (just before) detonation occurs
>> > >
>> > > or
>> > >
>> > > b) decrease fuel delivered until (just before) detonation occurs
>> > >
>> > > economy minded people choose B and performance people choose A >>
>> > >
>> > >I think its a balance of both..as much timing as you can get away with
>and as
>> > >lean as you can get away with. Theres definatly a balance of
>timing/fuel that
>> > >makes the most power. Its a matter of finding that sweet spot in your
>car.
>> > >Everyones car will respond similarly, but like a different combo....a
>little
>> > >tweak.
>> > >
>> > >Thats my useless opinion.
>> > >
>> > >Jim
>> > >
>> >
>> >
>> >
>> ~~~
>> Dave Z. www.delanet.com/~tgp
>