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First start, homebrewed CDI Efi
Posted: Tue May 28, 2013 9:49 pm
by dahlman
Re: First start, homebrewed CDI Efi
Posted: Tue May 28, 2013 10:15 pm
by Fred
Cool :-)
"Values as expected, still need to add some kind of container to get a more stable MAP reading."
No, you need to time your MAP readings to the crank shaft, and so do I :-) I'm working on it right now, actually, as it's becoming important.
Re: First start, homebrewed CDI Efi
Posted: Tue May 28, 2013 10:21 pm
by dahlman
Mabey a little bit of both....i belive it's hard to get stable readings with this kind'a small "intake manifold".
Re: First start, homebrewed CDI Efi
Posted: Tue May 28, 2013 10:40 pm
by Fred
I'd avoid putting any lag between reality and your algorithms, if I were you ;-) if the engine is running at a stable RPM (which it will once tuned, and with stable airflow), then the pressure variance through the manifold will be consistent on each revolution. You just have to pick the correct time to read it to get a minimal value.
