Rich from Fast Man EFI working on the 514. Engine made good power today, right around 900 hp. Very interesting comparing the numbers from the laptop hooked up to the Holley ECU with some of the numbers from the dyno. Looks like the dyno airflow measurements are 10% low so that was a bit of a surprise. VE on this engine is 102% according to the dyno but 115% according to the Holley system.

I used to assume that PipeMax was wrong since it predicted 115% VE for the engine but now I'm starting to think that PipeMax was correct and that the mass airflow unit which we got from Stuska is wrong.

Also notice that the $250 wideband sensor which we use with the Holley ECU appears to be more accurate and much more stable than the $90 wideband sensors that we use with the dyno wideband. I never really trusted the dyno wideband numbers but the Holley wideband was rock solid and appears to be correct.