Originally Posted by
Dan H
I have to figure out where I put my MAC valve so I can measure it.
Brian, thanks for the break down! That is how I've been thinking of the WGDC. There are going to be differences for not just individual turbo/wastegate/housing/housing porting, but the routing of the control solenoid too. I just don't mean T1 or T2, but: solenoid, line size, line length, restrictor size, etc. But "x" DC% should really result in "x" boost for the given setup (with the exception of creep from a restrictive housing). Regarding the adaptives- I haven't disabled mine yet. The info I saw on Rob Lloyd's Wiki was to 0xff (max, I believe) the 'StopAdaptiveWGWhenMapIsThisCloseToBoostTarget'. In T-SBEC code that value is used in the "T1BC_ControlBoostCreep", but it seems "NoWastegateDutyCycleCorrectionBelowThisRpmVNT " is considered first, so I would think either should work.
have zeroed out "FullThrottleWastegateDutyCycleAdjustmentFromB oost Target" currently while trying to determine my WGDC values. Do you know how exactly changes to this table will affect things later? If its positive, does it increase the WGDC that percent above the "DCWOT" value?
At the moment I am using T1 control, setup as the traditional to 88-91 routing style. I am going to try it as 92 style with long lines (WG solenoid is on passenger side) but also plan to try short lines with the solenoid close to the source and actuator.
Some concerns I have so far are: are the baro values in the cal properly scaled and do my MAP transfer values need to be corrected. I am logging almost anything WG related. My 3 Bar map value (live and logged) appears to be matching up with my mechanical gauge. Through a pull my "Previous Boost" value doesn't seem accurate and neither does "BoostDelta". "Previous Boost" logs about 5psi higher than the MAP value and the "Boost Error Timer" starts counting as if it is over goal. I'm not sure if I could insert a portion of the .csv here to show this.