I have attached a datalog that shows some interesting data. This is the log from the 11.85 pass. The line to the LEFT of each data points box shows the locaiton on the graphs where the reading are taken.

RPM is in green in the center. I launched at 1360 rpm, let off at 4680 in 4th. Nothing to see here other than getting our bearings.

AFR is in magenta. The leanest it got was 11.66 in 2nd gear, and 11.38 in 3rd, getting as rich as 11.0 in those gears. It goes rich after shifting and in the upper RPMs. When it shifts to 4th, the AFR drops to 10.4! So, no shortage of fuel.

Boost is black. 21 psi.

Timing Advance is blue. The deep valleys are the shifts. It starts higher, 19 degrees in 3rd and 4th, and drops as the RPMs climb. The timing advance is somewhat inversely proportional to boost between the shifts. As boost climbs, timing drops.

IAT is red. I was running ice, thus the starting line IAT of 57 degrees F. I dumped a 10 lb bag of ice in before each run. With the volume of water in the system the ice would melt very quickly, before the run even. But it left very cold water. I could fit up to approimately 25 lb of ice in the reservoir. The IAT climbs through 1st and 2nd and actually levels out somewhat in 3rd around 102 F, before climbing again between 5700 RPM and redline to a maximum of 118 F. The supercharger is working hard here. Interesting, when the RPMs drop back down to 4600 after the shift to 4th, the IATs drop also, down to 113 F before I let off the gas.

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