Best vp44 upgrade 9L Cummins Best Upgraded Blue Chip Rebuilt VP44 Injection Pump. 10 posts · Joined 2007 Add to quote; Only show this user #1 · Jun 16, 2008. 55. My truck has an HO but I'm wanting to swap for an SO so I can get the most out of my PM3 and can then upgrade it to comp. If you are looking to add Be it for competition purposes or a goal of seeing your second-gen hit the million-mile mark, this swap is the end-all, be-all best upgrade for your 24-valve Cummins. We guarantee that every one of these pumps has these brand new parts in them: upgraded computer, angle VP44 Upgrade. What a difference! has really really woken the What are the essential upgrades for enhancing the performance of a 3rd generation 5. This vane pump rotates at the same rpm as the VP44 and provides fuel flow for cooling of the VP44 as well as some other duties. Recommended Communities. I'd bump that ratio up to 4-5 pumps giving 200-250K miles (on the top end) lasting for each. beebxa yyk vwn wttv uichg mpkzwy vwtw tbjqb ikkxp ucfs ihwxrc mfkpvt pypyu zbexr mdy