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15ms sounds pretty long but at 6100rpms how much further can you wind up the motor?
Looking at my logs this weekend I did a third gear pull boosting to 14.4psi, 4800rpms, 45psi fuel pressure, 64.6% duty cycle, 8.1ms injector open time, air temp 160F (71C, no intercooling btw), and my afr hovering around 11:1. I'm running RC engineering balanced 750cc (72lb) high impedance injectors and if the duty cycle climbs too high I have room to double-up my total injections still. Right now it fires the banks alternately every spark event so, 1-bank A, 4-bank B, 3-bank A, 2-bank B, but I can bump it up to fire the injectors simultaneously if need be. The only down side then is my idle pw might be too low and the injectors might not open since right now the idle pw is around 2.3ms.
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