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12-28-2018, 10:04 AM
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#52
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Major 
Drives: BMW 640i
Join Date: Mar 2017
Location: NY
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Quote:
Originally Posted by F30_SixSpeed
Here is a side by side comparison of stocker vs. XDI-35 hpfp. Both logs have same hardware parts (aside from the upgraded pump) and are both in top of 3rd gear @ 6k RPM (same exact speed too - that was actually a coincidence)
You can see the stock HPFP would dip/crash on anything above 16-17 psi (sometimes associated with a rough fuel cut and buck - I'm sure a few of you know what I'm talking about lol). I'm running 20-21 psi on the XDI-35 pump and no fuel pressure dips at all. Car feels real beastly up top at 20+ psi with solid timing too  .
Dyno numbers coming  |
NICE!!!! 
__________________
N55 GENERAL 
David Shoup Tuned
Fully Built By Miami Engines/Project Motorworks
Precision 6266 On Steroids |
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