The SDS programmer hadn't been showing the correct AFR since replacing the controller with the AEM controller and sensor. I found that the white wire (AFR output) that connects to the SDS ECU had slipped inside the solder sleeve when I heated it, so was not making electrical contact. After using a new solder sleeve, the programmer now reads 18 with the engine off. I changed the VPX settings so that the AFR is powered on when the Alt Field switch is turned on. The AFR controller takes a few seconds to run diagnostics. It doesn't have a remote status indicator like the 14Point7 did.
I found a small crease in the baffling near #3 cylinder so used a leather punch and lacing tape to get the seal to lay down better.
Reviewing the EFIS data, after making lower cowl ramp changes, the cylinders coldest to hottest are now 1,2,3,4. With a 20-30 degree delta depending on air speed and power setting. Previously, 1 and 4 were the coolest, 3 was the hottest with up to a 40 degree delta. If #1 could be brought up a little and #4 down, the delta temp would be great.
Today I'll attempt to use my cheap new laptop to get some log data out of the SDS ECU to dial the map in better. Based on fuel flow, it looks like with the mixture knob centered, about 10% more fuel is needed during take off to obtain max power.
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