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HPFP Upgrade?

12K views 28 replies 11 participants last post by  BlackT5  
The reason for needing an upgraded pump is to cover the drop in pressure at lower rpm where it has the hardest time keeping up. The low pressure pump is fine, that's why we can run aux fuel with no issues. The aux fuel fills the gap.

The big slow spooling turbos don't have this problem, only stock and smaller fast spooling big turbos.
 
I don't know if anyone has. Switching to a 4 lobe might be an option too. If staying 3 lobe and changing the lift we'd need to know the max stroke of the pump.

I've wondered this exact thing before but it's out of my price range.