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      01-08-2018, 01:29 PM   #5
UltraMagneticAL
Meh
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Drives: M3CS & Cayman S
Join Date: Jul 2008
Location: Cali

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2019 BMW M3 CS  [0.00]
2018 X3 M40i  [0.00]
2017 BMW M2  [10.00]
Quote:
Originally Posted by Bt12 View Post
So you’ve deduced the boost is running that far below target due to fueling?

I remember on the vw’s you needed to upgraded HPFP because it hit a wall. Literally felt like a wall.

Is there a a higher performance hpfp for the m2 yet?
boost is actually hitting its targets. boost pressure at the throttle is at the target even though fuel pressure drops.

there is a pnp hpfp being developed and some other company is currently selling a kit to retrofit the dual pumps from the s55. both will require custom tune.
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