Hi there HP land.
I have tuned a few turbo cars, but I'm new to diesel. Well, pretty new. I'm starting to wrap my head around the concepts.
I have read and I'm familiar with the idea of how a diesel combusts, SOI timing etc, but I'm having trouble determining the +- reference to BTDC/ATDC in HP tuners tables.
It seems this is how the timing works, please correct me if I'm wrong:
Main Injection Pulse: Negative numbers indicate a BTDC value. Positive numbers represent a ATDC value. -2* is 2* BTDC, +2* is 2* ATDC
Pilot Injection Pulse: Value indicates how long the pilot pulse preceeds the main event. Not sure if it's supposed to be the pilot SOI or EOI
Post injection Pulse: Time in us from the end of the man injection to the post SOI
Comments??
Thanks,
Chay