[NoDOHC]

I never dynoed at a real dyno, but I did not notice or measure with my G-tech any difference between 13.5:1 and 12.8:1 AFR at 7,000 rpm. My power actually dropped off below 12.8:1.

I don't know if the 197 Whp number is correct on 4X460cc/min

Thermal energy of gasoline: 124,000 btu/gal

Injectors = 4 X 0.46l/min = 1.84 l/min X 80% utilization = 1.47 l/min = 88.3 l/hour = 23.37gal/hr.

You put in 124,000 X 23.37 = 2897270 btus/hr = 1138 hp! At an 85% drivetrain efficiency, (227 at the flywheel), This implies that the engine is < 20% efficient!

Lets go from the airflow side. 4 X 0.46 X 80% = 1.47 l/min = At 740g/l this gives 1.09 kg/min or 18.2 g/s. At a 12.8:1 AFR this requires 232 g/s of air or 1.025 X 232 = 238 l/s (edit: at sea level, 70 F)
Because the rotary displaces 1.3 l /rev, this equates to 11,000 rpm at 100% VE.

I don't know if there are more complicated methods at work here, but the way I slice it, 460 cc injectors are PLENTY.

I can also say that my '86 would run 12.8 AFR up to 5,500 rpm on a single set of injectors (no staging until that point). It would also do a 14.8 quarter at 105 mph (it was not that slow/starved for air).

I was using peak and hold on the Haltech.