Stock HPFP flow rate / capacity

[metroplex]

Does anyone have the specs on the factory HPFP for the transverse EcoBoost or maybe the F150 EcoBoost 3.5?

 

[ZSHO]

I believe the High-pressure (2150 psi). Z

 

[bpd1151]

Higher than that Z.

Trying to recall my various dyno sessions, and mine was in the 2,200 to 2,300 psi range.

I'll bet Manu can dig up the technicals from somewhere within the matrix. He's a plethora of tech info. Give him some rime.

Sent from my SM-N920V using Tapatalk

 

[FoMoCoSHO]

BOSCH HDP-5

Max psi is 3k psi.

Lots of info to be found in the di section.

 

[SHOdded]

http://www.bosch-motorsport.de/media/catalog_resources/HP_Fuel_Pump_HDP_5_Datasheet_51_en_2776592395pdf.pdf

http://www.ecoboostperformanceforum.com/index.php/topic,4871.0.html

 

[metroplex]

Would it be possible to set the max pressure to 3k psi and compensate for flow issues?

I'm trying to find the flow rates for the stock HPFP to see how much ethanol I can add without it dropping pressure. I will check the links

 

[metroplex]

So I pulled the HDP5 datasheet that showed 200 bar (2900 psi) and 1.1 cm3/camrot flow. I did the math and based on a gasoline density of 6.25 lb/gal, it should support up to E45 with extra boost.

But like I said before, with extra boost and just 93 octane, I was running low on fuel pressure with a lambda below 0.82. How would I know the injectors are at the limit based on datalogging? Do we have specs on the stock injectors?

 

[SHOdded]

Bosch HDEV5 injectors
http://products.bosch-mobility-solutions.com/media/en/ubk_europe/db_application/downloads/pdf/antrieb/de_5/gs_datenblatt_magnet_hochdruck_einspritzventil_hdev5_de.pdf

Higher pressure capability in 5.2
http://www.bosch-motorsport.de/media/catalog_resources/HP_Injection_Valve_HDEV_52_Datasheet_51_en_2776067211pdf.pdf

 

[metroplex]

Which do we have?

It seems like HDEV5 matches the 2900 psi of the HDP5 pump, but there aren't any max flow rates for the injectors - just a flow rate at 1450 psi.

 

[FoMoCoSHO]

Metro, I think there are but we have to convert them from cc/cam revolution.

 

[metroplex]

Did they post a cc/camrot flow number for the injectors? I only saw it for the pump (works out to about 5.45 lb/min at 6000 RPM) but even that seems optimistic based on what I've seen with mine running very low on pressure with a richer lambda.

I'm curious if raising the max fuel pump pressure in the tune to 2900 psi might help versus the stock 2100 psi.

 

[FoMoCoSHO]

Would it be possible to set the max pressure to 3k psi and compensate for flow issues?

I'm trying to find the flow rates for the stock HPFP to see how much ethanol I can add without it dropping pressure. I will check the links

I wouldn't set it to 3K as you will have spikes beyond the rated 3K...beyond that I suspect you could also be giving the injectors more than they are rated for.

I had WOT targeted at 2650 and spikes put it right around 3k

 

[polskifacet]

Raising pressure without a volume increase will most likely not give you the results your looking for. Its like running 25 psi on a baby turbo, you loose efficiency. Its nothing like having a big turbo @ 25 psi which actually gives you much more air volume and that pressure. No substitute for a monster fuel pump .

 

[FoMoCoSHO]

Raising pressure without a volume increase will most likely not give you the results your looking for. Its like running 25 psi on a baby turbo, you loose efficiency. Its nothing like having a big turbo @ 25 psi which actually gives you much more air volume and that pressure. No substitute for a monster fuel pump .

True.

Has anybody ran out of volume and not been able to maintain commanded AFR?

Raising pressure does have some benefits though....It increases your cooling octane which may allow less enrichment and restore some pressure/volume.

 

[polskifacet]

Even on my car which seems to be the worse one on here regarding fuel pressure, I always keep desired AFR.