W2 408 Dyno results today !

Like I said, I would have tried jetting for power, and maybe the bsfc and power numbers could have been improved upon(but, maybe not).
After I had tuned for power ........ then you could see if it had any bearing on the reading from that one cylinder.

In other words....... how would you go about tuning the motor if you didn’t have 8 O2’s on the motor and that info to look at?

I would venture to say that “most” dyno services don’t have the capability of reading the O2 on every cylinder.
I guess for those without it....... you don’t miss what you don’t know.

It looked like there were EGT probes in use too?
How much different was the ex temp on #7 compared to the others?