If it din't help, the Cummins guys would not have 9000 threads on adjusting it, and neither would the VW guys. Pump plunger size is going to be your limiting factor if you can get the engine to hold together.
It does not change fueling under boost, it limits fueling off boost.
Yes you can run an NA pump, and have about the same top end, but you will smoke for nothing at part throttle, increase EGT, maybe stick a ring, and have no performance gain. Actually, you probably lose a bit.
Last edited by 745 TurboGreasel; 11-09-2013 at 12:13 AM.
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