Yes, once you switch to "use table" it uses the timing in the spark advance table (which is around 25 degrees). Whenever you are checking if commanded timing = actual timing, you have to set it to "fixed" first. This is the same as pulling the spout with the stock ECU. It locks timing so you can check it.
Thanks for the feedback. There is no "perfect" timing table that is universal for all applications. The table posted here is a "starter" table and nothing more. Most setups can't even build boost at 2000 rpm so those setups benefit from that extra timing by making more power and therefore spooling quicker than it would with retarded timing. A turbo upgrade would "like" that timing, as would a larger cam that makes less cylinder pressure at low RPM.
Hang on, something's strange here that I'm not understanding. I have an IHI, and as you noted, it builds boost in the 2K-3K range. My problem was that above 5# (130 KPa), more precisely between 5# and 10# (170KPa) I got detonation, because the timing was advanced too much. If most setups can't even build boost at 2000 rpm, then how would those setups reach the range between the load boxes that I proposed changing, to benefit from the extra timing and making more power? Maybe you are talking about the range below those boxes?:
Last Edit: Apr 1, 2016 16:00:34 GMT -5 by gman: I think I've figured it out
100 is 0 psi boost (at sea level) so they will certainly reach that no matter what turbo they have. Even 95kPa will be sampling from the 100 kPa row as well. Anything above 100 starts sampling from the 130 cells as well since timing commanded is a weighted average of the 4 cells around the "dot" at any given time. So if it's 100.1 kPa and above 2000 rpm then it's using the values precisely in your circle to calculate timing it should be commanding.