Re: Ignition advance map help needed


"Yvan" <me@xxxxxxxxxxx> wrote in message
news:20080126213905.6b8304e3@xxxxxxxxxxxxxx
Nedavno moray napisa:

http://www.ptt.yu/korisnici/i/v/ivica/edis/IgnitionMap.jpg

Looks good enough for a base starting curve.
You will need to advance/retard the ignition more depending up on the
MAP signal (ie, no vacuum = full load, full vacuum = no load on
overun), but it's something you'll have to experiment with to try and
find something ideal for your engine, unless you want to pay a tuner
to do it on a dyno.

What is usually difference between idle and full load ignition advance
in degrees? And is the difference larger at low rpm and greater at high
rpm or opposite?

I couldn't honestly tell you.
It's been a good few years since I covered that stuff at college, and I've
never had to worry about it, as little magic boxes do all that stuff
automatically now!

If I get a chance, I'll have a dig through some of the books I've got that
might cover it.


.

Relevant Pages

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