Quote:
Originally Posted by ajm55
I'm currently looking into this as well. Some say one should not go into boost on the F90 pumps unless the tune has been adjusted to account for the extra pressure. Others say that running the F90 pumps without adjusting the tune causes no problems at all (even though adjusting the tune might offer more in the way of performance gains). Do you know which of the 2 conflicting views is correct?
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Based on the statement of my very experienced engine builder, the F90 HPFP will not run properly without software adjustments. And there’s a risk of dumping too much fuel, uncontrolled.
I can’t proof either concept, I just followed the advice of my tech and the engine is running great so far 👍🏻