Quote Originally Posted by Dirtybob View Post
been looking at this XDF with my noob eyes and (in addition to the ton of new parameters) I noticed a difference at address 0x12046 (unknown spark adder vs. EST sytem time lag, 2 digit usec vs 1 digit integer display). Dunno if it means anything but it may be helpful to know, I have it set to 0 in my bin so I don't have to try to account for added spark when working with the main advance tables...
Here's what I have on file.


Hi Jonathon,

This is the EST system time lag and is meant to correct for the latency in the spark system. It is a fixed value in usec:

lag (usec.) = N x 0.08477

Of course since the time lag is a fix time value the correction in terms of degrees will depend on RPM.

Best regards,

TC