I thought with turbocharge/supercharge engine, it must be multiplied by .60 BSFC.
Therefore, (500 hp x .60) / 6.4 = 46.87 lb/hr per injector => 46.87 x 10.5 => 492 cc/min per injector. This is the safe side.
Steve, the .60 BSFC is rule of thumb for safety. John and Dennis already determined that this engine works well at .55 and even .50 BSFC.
We already know this motor is capable of 0.50 to 0.55 lbs/hp-hr as it did these levels last time.
The most recent dyno runs showed the injector duty cycle at 90%.
Many think that a FPR that matches boost keeps flow constant. Injectors are hydraulic devices and the pressure port or rail opening is larger than the outlet orifice. This multiplies pressure and way more than overcomes just the boost increase for delta P. John mentions fuel rail pressure at 60psi as aposed to the standard rated flow pressure of 43.5psi.
Also as mentioned there was methanol (fuel) being injected) negating some fuel requirements.
Now, lets talk ONE injector. 1/8th of 500hp = 62.5hp per injector.
That needs about 43lb/hr injectors at .55 bsfc and 80% duty cycle at 43.5psi rail pressure.
Increase that rail pressure to 60psi and the increased flow reduces injector size required for the same power to 36lb injectors.
460cc injector at .55, 80% and 60psi supports 75hp (75 x 8 injectors= 600hp)
Now, as said they reached 90% duty cycle. 460cc, .55, 90%, 60psi = 84hp ( 84 x 8 inj = 672hp)
And at .50 BSFC, 460cc, 90%, 60psi = 94hp (92hp x 8 inj = 736hp)
This is NOT including the Meth.
So, without the meth and granting a pretty large 90hp blower drive allowance (probably less) still leaves nearly 150hp unaccounted for at .50, 84hp at .55