Just a snippet of a datalog.
the point of interest, is that you'll notice as the flag is set for PE the is no jump in the WB readings. So the car just acclerates with out shocking the drivetrain, and leads to being planted in the seat and just going, at the higher throttle openings.

It just gives the car an civilized feel.

10:07 12 2075 72 19 165 115 23.6 5.65 13.3 24 N N N
10:07 12 2100 72 19 165 115 23.6 5.65 13.3 24 N N N
10:07 13 2125 72 20 165 115 23.6 5.65 13.2 24 N N N
EnRunMph Rpm KPa Tps CtsFMatF Spk PW WB IAC PE AE PN
10:08 13 2100 73 22 165 115 23.6 5.74 13.3 24 N N N
10:08 13 2050 78 22 165 115 23.2 6.24 13.3 24 Y N N
10:08 13 2000 79 22 165 115 22.9 6.24 13.4 24 Y N N
10:08 13 1975 80 22 165 115 22.5 6.38 13.6 24 Y N N
10:08 14 1950 81 22 165 115 22.2 6.47 13.6 24 Y N N

Humor Mode,
But, hey, I'm just an amateur.

And with not having lied to the ecm about where I'm at, the calc'd AFRs line up with the WB, so if I want to change the PE AFRs, I know where I am, and have been, so I can rather confidently forcast what changes will do what.


Map:20 25 30 35 40 45 50 55 60 65 70 80 90 100
RPM:

108,108,115,115,115,118,118,118,120,125,130,135,140,140; 400
108,108,115,115,115,118,118,118,120,125,130,135,140,140 ; 600
59,102,115,115,115,118,118,118,128,130,130,135,140,140 ; 800
25, 25, 51,115,118,120,120,128,132,136,136,140,140,140 ; 1000
25, 25, 40,115,118,120,125,133,143,152,156,156,156,156 ; 1200
0, 0, 40,115,123,131,133,139,145,151,161,170,180,180 ; 1400
0, 0, 40,115,130,134,137,140,146,157,166,175,180,185 ; 1600
0, 0, 40,120,135,137,139,143,147,165,176,185,190,190 ; 1800
0, 0, 40,133,140,141,145,146,148,167,178,185,190,195 ; 2000
0, 0, 40,133,142,144,145,146,148,168,180,185,190,190 ; 2200
0, 0, 40,133,143,145,146,147,155,170,175,180,185,185 ; 2400
0, 0, 40,133,145,145,145,150,160,165,170,175,180,180 ; 2800
0, 0, 40,133,145,145,145,145,145,160,165,165,170,170 ; 3200
0, 0, 40,134,145,145,145,145,145,150,160,160,165,165 ; 3600
0, 0, 40,134,145,145,145,145,145,150,155,155,160,160 ; 4000
51, 51, 51,130,145,145,145,145,145,145,150,150,155,155 ; 4400
51, 51, 51,130,145,145,145,145,145,145,145,150,150,150 ;

FWIW, I did some data logging to see what the trends were like AFR vs VE entries. Once I had a sense of where things were going I was able to generate all the values over 2,200 on the ecm bench. Then burnt a chip to verify that what I generated on the bench did in fact give the engine what it wanted.

While at a glance the VE table might look odd, you need to remember it is a boosted application.
I'll have to disable the wastegate to verify the higher load regions, but so far it all looks good.

And as I've mentioned before there are at least 2 ways the ecms calc VEs.
This lessening of VE entries, maintain the same PWs.

Not to be attempted without supervision, etc, etc..

 

The golden part for my WB arrived today so I hope to be up and running with it on Thursday.

I am pretty interested in tip-in conditions. Do you have any design remarks as to the DIY's response time during rapid changes? IOW, due to the sensor/curcuit design, can I expect the same sensor performance in transitional conditions as I can in steady state? I will be logging with something similar to the DATAQ DI-194, but on steroids...and being a newb with it, I figure if I set data capture too fast, I might be trying to analyze data points that are actually different just to the circuit design for the DIY-WB.

 

It's 95% about where you locate it.
The closer to the engine the faster the response.
I've run two at a time, one being within inches of an exhuast port, and then one 6' downstream of the first one. While you can see the lag, it's not much.

Also, keeping it kind of close to the engine reduces the load on the heater circuit.

If you locate it at about the Y pipe you can figure on it being as close to real time as it's going to be.

The above is with the Roe LED Display.
All your other readouts, are probably have a sampling rate and will be a tad slower.

I lean on the LED for transistional stuff, and then data log for the VE and timing.

The sensor is pretty fast reacting. I believe it's been mentioned that you can identify individual cylinders on a v8 at 3K RPM. Watching each exhaust pulse on a scope with a WB is easy.