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      04-30-2017, 12:55 PM   #56
BPMSport
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Drives: 2x Harrop E90 M3, E92 M3, E39
Join Date: Apr 2008
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2000 BMW M5  [0.00]
1990 BMW 735i Turbo  [0.00]
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Quote:
Originally Posted by spr View Post
It's speed density. No MAF or MAP. Doesn't matter.

Quote:
Originally Posted by MShift View Post
I'm not familiar with how the ESS kit does airflow metering, but be careful; you don't want to be venting metered air as it will throw the tune off, make you run rich and lose power. Also, that echoing flutter can be surge from the bpv not opening at all..in which case its a bad thing.
There is a MAP sensor... this is what makes it speed density.
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