cheers rik im using the ms map sensor and i was toying with the idea of using the z22se one that lives in the ducting as this seems to already be calibrated to ms, but it makes sense to use the intercooler one if pos.
exmanta- i robbed this off of wikepedia as im not sure yet as i havent had a reply on saab central yet, as far as i know it will be measured from the first missing tooth, ms2 v3 only requires tooth pattern and angle as an input for a crank sensor setup.
"Top dead centre is the datum point from which engine timing measurements are made. For example, ignition system timing is normally specified as degrees before top dead centre (BTDC) although a very few small and fast-burning engines require a spark just after top dead centre (ATDC), such as the Nissan MA engine with hemispherical combustion chambers, or hydrogen engines."
hope for a test fire tomorrow, having a lazy beer drinking day today!