Introduction
I'm rebuilding a 1987 SAAB 900, hoping to achieve good fuel economy, performance and reliability with a lightly modified 2.0l 16v turbo engine.
Status
Tearing down old engine
Questions
I'm planning to use a crank-mounted Bosch EZK trigger (Hall Sensor) with a two-hole shutter wheel [as seen here].
- Will a 36-1 or 60-2 trigger wheel provice a noticable improvement in timing accuracy?
- not, with current firmware. The 60-2 is no noticable improvement over 36-1 anyway (timing from 10 degrees worstcase is just perfect, the error because of this is well under 0.1 degree even with fast revving engines - except in neutral which doesn't matter that much )
- Does sequential injection require a certain number of trigger events?
- one (primary-trigger) pulse per engine event is the minimum
Picture credit http://www.900aero.com