Originally Posted by Bulldogger
It's not the difference in pressure, it is going from 55-60g/h (stock) to the 95g/h that the SL55 pump gives you. Up top you are loosing pressure in the rail due to lowered volume. The SL55 pump adds 35-40 more gallons per hour.
Oh and the stock pump/injector configuration will not deliver more than ~42 gph (assuming 100% inj dc) - see the chart posted here
https://www.crossfireforum.org/forum...tml#post453333
If you extend the curves for the stock injector to meet the SL55 pump curve, they will cross somehwere around ~105 psi and ~66 gph. But it would be impractical to try to run that much pressure.