Quote:
Originally Posted by hassmaschine
There's no VE table on the N52 - well, there sort of is, but not really in the traditional sense. It's basically airflow over valve lift vs crankshaft position.
You need to alter the valvetronic maps of course, and maybe tweak the AFR target maps. I usually extend the airflow table mentioned above because by default it ends at 9.6mm of lift, but it's pretty linear so you can just scale that up to 11mm.
The N55 probably uses VE because the MAP sensor is a much larger part of the engine control, where on the N52 it's assumed to be 100kpa most of the time and is more of a sanity check.
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I was about to tag you and
Bob@BPC But yeah.