Fueling for stage 2 turbos?

langsbr

Captain
Apr 5, 2017
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07 335i 6MT e90
600whp here on d.i. only e60 blend upgraded turbo's and upgraded fuel pump

You have a bucketless lpfp though right? My PR bucketed setup is running out on E40. Are you running a DW pump or a walbro? The DW definitely gives more headroom, but I would think a bucketless walbro would be close to the edge at 600whp. Granted, 600whp can vary 50 whp up or down depending on the dyno.
 

fmorelli

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Aug 11, 2017
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E89 Z4 35i, F10 535d
You have a bucketless lpfp though right? My PR bucketed setup is running out on E40. Are you running a DW pump or a walbro? The DW definitely gives more headroom, but I would think a bucketless walbro would be close to the edge at 600whp. Granted, 600whp can vary 50 whp up or down depending on the dyno.
I'm curious about this, too. @Blu_Me ... any input with your new setup on the Z4?

Filippo
 
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Blu_Me

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Jul 24, 2018
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I'm curious about this, too. @Blu_Me ... any input with your new setup on the Z4?

Filippo

Fuel-it walbro 525 lpfp, stock hpfp, pi, pure stage 2 hi flows @ 28psi and my fuel rail psi stays above 2k to redline. Full e85. I’m happy with where it’s at because I am not a fan of mixing.
 
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