Originally Posted by
Marc sierra
Thanks!
I've used the link and used a BSFC of 0.65 and duty cycle of 80%. In that case 350 bhp would require 71lb / 746cc/min injectors. But in practice 350 bhp is possible with the 803 injectors which are only 382 cc/min. I understand you'd be able to go above the 80% duty cycle, but this is almost a difference of a factor 2.
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The Bosch delivers its 382cc/min @ 42psi according to Bosch. On a YB you are probably running 50psi static + 20psi of Boost so that's 70psi. Find a chart to see what the 803 deliver at 70psi . The maths wont be wrong you are not comparing the same thing.