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Author Topic: LPFP specs  (Read 10933 times)

Offline bamsho

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LPFP specs
« on: April 19, 2016, 11:24:11 AM »
Hey, does anyone know the specs for the tank pump.  Just curious what the GPH and PSI are.  Thanks
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Offline Gray Brick

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Re: LPFP specs
« Reply #1 on: April 19, 2016, 02:20:51 PM »
This would be good to know..,.
2013 Ecoboost Ford Flex
AJP Tune (ATP+2) in progress , Livernois HPFP, 3 Bar MAP, UPR Catch Can, 100% Methanol w/ braided steel lines, 3" Downpipes -->2.5" X-pipe --> 2.5" Magnaflow exhaust, 2.5" air inlets to each turbo with cone filter, Custom water to air intercooler with chiller
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Offline FoMoCoSHO

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Re: LPFP specs
« Reply #2 on: April 19, 2016, 05:11:49 PM »
This info comes from the dealership...     

2013's have a different LPFP than the 2010-12's.

1st gen LPFP run at a fixed 65PSI

2013+ is variable that runs between 51 and 75 psi.

HPFP input pressure rated for 58-101 PSI (4-7bar)
« Last Edit: April 19, 2016, 05:15:16 PM by FoMoCoSHO »
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Offline ZSHO

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Re: LPFP specs
« Reply #3 on: April 20, 2016, 10:58:18 AM »
I was able to obtain some more info pertaining to the OP question.  Z      Taking center stage and the backbone of these technology changes is Gasoline Direct Injection (GDI) and Turbo Diesel Injection (TDI) engine. To review, previous fuel injection models relied on indirect injection of the fuel spray outside the combustion chamber at a stoichiometric ratio of 14.7:1 air-to-fuel. Typical piston compression ratios were limited to about 9:1 in gasoline and 20:1 in diesels due to the limits of squeezing this finite volume of incoming air.

However, Direct Injection has completely reinvented this piece of physics by allowing for more air to enter the engine while reducing the amount of fuel required for ignition. Ultra-lean fuel mixtures as high as 65:1 have been achieved in some models while the average ratios hover around roughly 25:1 on average. This is a quantum leap from the 14.7:1  limit from which we came.

One good example of this new direct injection (gasoline) engine is found within the Ford EcoBoost. The EcoBoost model is well on its way to becoming the most popular engine in its class. The 3.5L EcoBoost achieves an impressive 355-365 hp @5700 rpm, and 350 lb·ft torque, and delivers power like no other. It contains some truly impressive engineering innovations.

From twin variable turbochargers spinning at 170,000 rpms to fuel injection pulses varying from low-pressure ultra-lean micro droplets to richer 3,000 psi squirts, this engine can make gobs of power at the mere touch of the pedal. Even the pistons have a specific concave indentation, to facilitate high turbulence within the combustion chamber for optimum fuel-air mixing.   :)
« Last Edit: April 20, 2016, 11:01:33 AM by ZSHO »

                  

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Offline bamsho

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Re: LPFP specs
« Reply #4 on: April 21, 2016, 11:56:36 PM »
Ended up replacing both main fuel pump and fuel pump driver module.   I was only having fueling issues at WOT.  DI pressure back well over 2000 psi now and running alot better.  I think the fuel pump was getting weak, which caused the driver to work harder to increase the pressure on the pump.  Seemed to be a cascading effect.  If anyone would have to have there fuel pump replaced, I would replace the driver module as well.  It's located behind the RR seat, you will need to fold it down and pull back the carpet to gain access to it. Very simple to replace, won't pay money to have someone do it.
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Offline AJP turbo

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Re: LPFP specs
« Reply #5 on: April 22, 2016, 01:02:26 AM »
What were your issues at wot?
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Re: LPFP specs
« Reply #6 on: April 22, 2016, 04:09:42 AM »
Ended up replacing both main fuel pump and fuel pump driver module.   I was only having fueling issues at WOT.  DI pressure back well over 2000 psi now and running alot better.  I think the fuel pump was getting weak, which caused the driver to work harder to increase the pressure on the pump.  Seemed to be a cascading effect.  If anyone would have to have there fuel pump replaced, I would replace the driver module as well.  It's located behind the RR seat, you will need to fold it down and pull back the carpet to gain access to it. Very simple to replace, won't pay money to have someone do it.
Let's see how the V10 does with the new hardware!  Hopefully the HPFP is chugging along nicely.
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If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

Offline bamsho

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Re: LPFP specs
« Reply #7 on: April 22, 2016, 08:31:28 AM »
It started last year just after running at Cecil County last Nov.  Running V8 93 at the time.  Had small pop, then slowly got worse, then it started doing it on 91 tune.  Car also had surging in town driving.  Finally guys put the aeroforce gauge to read to DI pressure, and pump voltage.  Voltage and DI pressure were fluctuating real bad.  So took a guess and replaced those parts.   Noticeable difference and voltage and DI pressures aren't fluctuating near as bad. 
2013 white Gen 5.  Gearhead Intercooler, Turbosmart wastegate actuators, Alky Controls meth kit, Livernois catted downpipes,  Livernois Corsa cat back black etched tips.  2016 True Street Champion.

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Re: LPFP specs
« Reply #8 on: April 22, 2016, 10:19:27 AM »
Kewl :thumb:
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If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

Offline BiGMaC

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Re: LPFP specs
« Reply #9 on: April 22, 2016, 10:59:38 AM »
It started last year just after running at Cecil County last Nov.  Running V8 93 at the time.  Had small pop, then slowly got worse, then it started doing it on 91 tune.  Car also had surging in town driving.  Finally guys put the aeroforce gauge to read to DI pressure, and pump voltage.  Voltage and DI pressure were fluctuating real bad.  So took a guess and replaced those parts.   Noticeable difference and voltage and DI pressures aren't fluctuating near as bad. 
My symptoms were just having the car die in the road and became unstartable... But when I got my LPFP and FCM replaced I felt the car ran better than it ever had... Bet you do too... I think it takes a long time for these parts to fail and performance is affected during the entire time.

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Offline bamsho

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Re: LPFP specs
« Reply #10 on: April 22, 2016, 11:10:36 AM »
Yep I agree BigMac.  I want to take care of the issue before one day it just died, and who knows where at.  One thing I've learned about electric fuel pumps, the quick working at bad spots, so been there, done that.
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Offline Blackhawk

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Re: LPFP specs
« Reply #11 on: April 22, 2016, 11:33:31 AM »
Is there any solid testing to see if a upgraded LPFP running at 100psi can increase overall fuel delivery through the HPFP?  If a weak LPFP can impact fuel pressure at the rail then it seems an upgraded one could have impact.

Offline AJP turbo

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Re: LPFP specs
« Reply #12 on: April 22, 2016, 11:45:07 AM »
Stock lpfp can run 100 psi
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405whp/520tq
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Tuning in progress

Offline AJP turbo

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Re: LPFP specs
« Reply #13 on: April 22, 2016, 12:04:47 PM »
It started last year just after running at Cecil County last Nov.  Running V8 93 at the time.  Had small pop, then slowly got worse, then it started doing it on 91 tune.  Car also had surging in town driving.  Finally guys put the aeroforce gauge to read to DI pressure, and pump voltage.  Voltage and DI pressure were fluctuating real bad.  So took a guess and replaced those parts.   Noticeable difference and voltage and DI pressures aren't fluctuating near as bad.

Im not sure that would be conclusive evidence...the voltage and pressure changes often and rapidly...you maybe be at 250 at idle and 2100 at wot
SCT Dealer/Custom Calibrator                        
Specializing in 3.5 Ecoboost   
Remote/email custom tuning including E85 blends 
Authorized retailer for all SCT devices. 
 
Former:2014 PP SHO
3 bar 93 tune, Airaid, Stainless Works non catted DP's  
405whp/520tq
Dyno
      
Current:2016 F150 2.7 Ecoboost
Tuning in progress

Offline Gray Brick

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Re: LPFP specs
« Reply #14 on: September 21, 2019, 12:15:04 PM »
So what is the lph of the stock in tank pump?
2013 Ecoboost Ford Flex
AJP Tune (ATP+2) in progress , Livernois HPFP, 3 Bar MAP, UPR Catch Can, 100% Methanol w/ braided steel lines, 3" Downpipes -->2.5" X-pipe --> 2.5" Magnaflow exhaust, 2.5" air inlets to each turbo with cone filter, Custom water to air intercooler with chiller
275/40-20 Front 315/35-20 Rear Tires
---12.419ET/112.43MPH @ 5150 lbs in the 1/4---

 

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