I found my mistake!!!!!
I was thinking this engine was going to make no more than 650HP.. so that was the number I used for all calculations.
On the Dyno, we made 750 average with 788 being the highest because the belt was slipping.
So this is from my build sheets:
The Sniper injection needs 60psi to operate.
To size the pump:
HP x 0.9 BSFC / 8 injectors then add 15% (saftey margin)
650 x 0.9= 585
585 / 8 = 73.125 lbs/hr
73.125 + 15% = 84.093 lbs/hr per injector
SO...I needed a pump with that flow
The above flow chart is for the A1000 fuel pump.
NOTICE it is gallons per minute!
So to convert: 1 gal/hr = 6.17 lbs/hr
The chart shows that the pump flows 1.8 gpm at 60 psi
1.8 x 60 = 108 gph
converted over to lbs/hr : 108 x 6.17 = 666.36 lbs/hr
divide by 8 injectors : 666.36 / 8 = 83.295 lbs/hr per injector. This is what the A1000 pump flows.
Being that I factored in a 15% saftey margin in my injector needs which was 84.093 lbs/hr....I felt this was close enough.
Where I went Wrong WAS: First.. I set my regulaor at 60 psi....thats what the Sniper needs to work.
I forgot that I needed to factor in the 1:1 (boost to fuel lbs) and ADD it to the regulated 60psi.
We were making 9 lbs boost so that ment I should have set my regulator at a 69-70 psi so when I was under boost it would allow more fuel as needed.
I was literally starving the engine!!
Second mistake is the fact that the motor was capable of 800HP.... I needed to recalculate the formula and would have seen that the A1000 pump was not big enough to support the fuel delivery needs.
At this point I am thinking that if I buy another A1000 and run it in series...It may fill the need . but I need to really think this one through!
One thing is for sure.....I am LEARNING the hard way!!! But I am learning!