at wide open throttle on 850cc injectors (they deliver roughly 1100 cc/min at 65psi). then take away your 10% margain of safety by running at 90% duty cycle, and your still pushing the limits of the injectors to maintain 1,000+ rwhp
And water injection should never be considered as a fuel. While it will gain you 'headroom' for cylinder temps, it won't do anything to help a lean condition due to inadaquete fuel delivery.