LPFP upgrade

etnsandman · 09-13-2018, 07:33 PM

Pump and install kit received. Car is on reserve. It's fuel pump time tomorrow.

paul223 · 09-13-2018, 09:11 PM

Quote:

Originally Posted by etnsandman

Pump and install kit received. Car is on reserve. It's fuel pump time tomorrow.

A question - I have stage 1 upgrade and supporting mods. If I did this upgrade, will there be more power to be made with this lpfp upgrade?

etnsandman · 09-14-2018, 08:03 PM

That was not a difficult project. I did use the newtis website to be sure I removed things in the proper order and didn't break anything. Car is happy.

tcabill · 09-29-2018, 07:24 AM

Sorry for last response, I can run straight 85 on MHD e30 map 1. For map 2 and 2+ I need to keep it at e60 or less.

jayster0966 · 11-15-2019, 01:42 PM

To revive a older post.n Thanks to the OP for this as I am about to tackle changing out my lpfp with a 450 this weekend!

To the OP; did any coding have to be done to the fuel pump control module to accommodate the increase in current draw so that the CEL will not be triggered?

ziekxq · 11-15-2019, 02:47 PM

Quote:

Originally Posted by jayster0966

To revive a older post.n Thanks to the OP for this as I am about to tackle changing out my lpfp with a 450 this weekend!

To the OP; did any coding have to be done to the fuel pump control module to accommodate the increase in current draw so that the CEL will not be triggered?

I did this DIY... There are shadow codes that might pop up but no cel.

Also, make sure you get this: https://www.amazon.com/gp/aw/d/B001R...b_b_asin_title

O'Reilly also sells this part.

You cannot use the stock hose as you have to cut it.

E92TTCoupe · 11-17-2019, 08:45 PM

So you can definitely use more than E30 on this?

ziekxq · 11-18-2019, 08:54 AM

You can run 100% E85 using the pump but will hpfp will be handle is another question.

So yes and no... You will have to monitor as you increase to see if your hpfp can handle it.

BimmerHausPerformance · 11-18-2019, 08:57 AM

Are there 100% E85 N55s out there? Is it just a matter of replacing both LPFP, HPFP, and getting a tune for it?

ziekxq · 11-18-2019, 01:40 PM

Quote:

Originally Posted by BrowBMW

Are there 100% E85 N55s out there? Is it just a matter of replacing both LPFP, HPFP, and getting a tune for it?

Well depends on what type of hpfp you have... My car is 2011 so it shares same hpfp as N54 guys, so I can get the Helix overdrive unit and that allows me to run 100% E85. For newer 2012+ got the newer style hpfp which requires a $5k solution to run 100 percent E85. But than I don't know if stock fuel injectors are up for the task? So many variables lol... I am still planning on upgrading to Helix overdrive unit by next summer.

BimmerHausPerformance · 11-18-2019, 02:42 PM

Good info! Mine is a 2011 with a 2010 production date so it's good to know we can do that upgrade and run 100% E85.

ziekxq · 11-18-2019, 04:56 PM

Quote:

Originally Posted by BrowBMW

Good info! Mine is a 2011 with a 2010 production date so it's good to know we can do that upgrade and run 100% E85.

You have to upgrade fuel lines as well with e85 certified from hpfp to fuel tank.

E92TTCoupe · 11-18-2019, 09:37 PM

Quote:

Originally Posted by ziekxq

You can run 100% E85 using the pump but will hpfp will be handle is another question.

So yes and no... You will have to monitor as you increase to see if your hpfp can handle it.

I appreciate that thank you. So getting a XDI-35 HPFP would also be an additional benefit?

E92TTCoupe · 11-18-2019, 09:38 PM

Quote:

Originally Posted by ziekxq

You have to upgrade fuel lines as well with e85 certified from hpfp to fuel tank.

Is there any particular ones?

ziekxq · 11-18-2019, 10:31 PM

Quote:

Originally Posted by E92TTCoupe

Is there any particular ones?

I would just get the fuel-it ones. I think they around 180?

E92TTCoupe · 11-18-2019, 10:47 PM

Quote:

Originally Posted by ziekxq

I would just get the fuel-it ones. I think they around 180?

Thank you. I’ll check and see.

ziekxq · 11-18-2019, 11:20 PM

Quote:

Originally Posted by E92TTCoupe

I appreciate that thank you. So getting a XDI-35 HPFP would also be an additional benefit?

If you have newer style hpfp than yes XDI-35 is made to allow more fueling capacity. I believe it flows 30 percent more than stock one.

From what I have come to known doing my research is that old n54 style hpfp was capable of flowing more fuel than newer style hpfp.

$howtime456 · 11-24-2019, 02:06 PM

When doing this you need to upgrade the fuel lines. The rubber hose is not made for e85. You will need a QFS 9mm Corrugated PTFE hose. The XDI 35 will handle up to E50 with FBO tuned. After that you will need Port Injection or XDI 60 upgrade.

jayster0966 · 12-01-2019, 02:22 PM

Just finished doing this upgrade and I must say that it was way easier than I originally expected. I used the following kit.

https://www.ebay.com/itm/GENUINE-WAL...72.m2749.l2649

Everything needed was in there and swap was straight forward. You can save a fair share of money doing this mod yourself. Only thing i did slightly different was i had to clamp the end of the nylon hose as it did pop off during testing. (all good now) On to installing my port injection!

ziekxq · 12-01-2019, 03:41 PM

I wish I would have found this earlier lol... Had so much trouble with the hose... That would fit.

E92TTCoupe · 12-01-2019, 08:45 PM

Quote:

Originally Posted by jayster0966

Just finished doing this upgrade and I must say that it was way easier than I originally expected. I used the following kit.

https://www.ebay.com/itm/GENUINE-WAL...72.m2749.l2649

Everything needed was in there and swap was straight forward. You can save a fair share of money doing this mod yourself. Only thing i did slightly different was i had to clamp the end of the nylon hose as it did pop off during testing. (all good now) On to installing my port injection!

So with this I can run at least E50?

ziekxq · 12-01-2019, 10:00 PM

Quote:

Originally Posted by E92TTCoupe

So with this I can run at least E50?

All depends on your hpfp... Plus at e50 level you want to upgrade your fuel lines as well.

09-13-2018, 07:33 PM	#23
etnsandman Second Lieutenant 82 Rep 216 Posts Drives: 2015 M5 Competition Join Date: Jan 2018 Location: Maryville,TN iTrader: (0)	Pump and install kit received. Car is on reserve. It's fuel pump time tomorrow.
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09-14-2018, 08:03 PM	#25
etnsandman Second Lieutenant 82 Rep 216 Posts Drives: 2015 M5 Competition Join Date: Jan 2018 Location: Maryville,TN iTrader: (0)	That was not a difficult project. I did use the newtis website to be sure I removed things in the proper order and didn't break anything. Car is happy.
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09-29-2018, 07:24 AM	#26
tcabill Private 14 Rep 51 Posts Drives: e63 650i, F10 535i, E93 335i Join Date: Jan 2013 Location: San Diego, CA iTrader: (0) Garage List 2012 BMW F10 N55 PWG [0.00]	Sorry for last response, I can run straight 85 on MHD e30 map 1. For map 2 and 2+ I need to keep it at e60 or less. __________________ 2012 535i M-Sport PWG, Wagner FMIC, VSRF no meow, chargepipe, Walbro 450 with custom fuel lines, MHD map e30 2+, JB4 (monitor and logging only now), xHP Stage 3, K&N drop-in, Paddleshift retrofit
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11-15-2019, 01:42 PM	#27
jayster0966 Second Lieutenant 209 Rep 221 Posts Drives: 2011 535i Join Date: Jul 2018 Location: Orange County, CA iTrader: (2)	To revive a older post.n Thanks to the OP for this as I am about to tackle changing out my lpfp with a 450 this weekend! To the OP; did any coding have to be done to the fuel pump control module to accommodate the increase in current draw so that the CEL will not be triggered? Last edited by jayster0966; 11-15-2019 at 02:04 PM..
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11-17-2019, 08:45 PM	#29
E92TTCoupe Major 145 Rep 1,493 Posts Drives: x335i/x550i/x640i/x540i/c750i Join Date: Oct 2012 Location: New York iTrader: (7)	So you can definitely use more than E30 on this?
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11-18-2019, 08:54 AM	#30
ziekxq Major 320 Rep 1,299 Posts Drives: 2011 535i xDrive Join Date: Feb 2016 Location: United States iTrader: (0)	You can run 100% E85 using the pump but will hpfp will be handle is another question. So yes and no... You will have to monitor as you increase to see if your hpfp can handle it.
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11-18-2019, 08:57 AM	#31
BimmerHausPerformance Major 513 Rep 1,442 Posts Drives: 2011 535i 6MT Join Date: Apr 2019 Location: Chattanooga iTrader: (1) Garage List 2011 BMW 535i [0.00]	Are there 100% E85 N55s out there? Is it just a matter of replacing both LPFP, HPFP, and getting a tune for it?
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11-18-2019, 02:42 PM	#33
BimmerHausPerformance Major 513 Rep 1,442 Posts Drives: 2011 535i 6MT Join Date: Apr 2019 Location: Chattanooga iTrader: (1) Garage List 2011 BMW 535i [0.00]	Good info! Mine is a 2011 with a 2010 production date so it's good to know we can do that upgrade and run 100% E85. __________________ 2011 F10 S55 6MT Website Insta @bimmerhausperformance YouTube Last edited by BimmerHausPerformance; 11-18-2019 at 04:11 PM..
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11-24-2019, 02:06 PM	#40
$howtime456 Major 301 Rep 1,230 Posts Drives: BMW 640i Join Date: Mar 2017 Location: NY iTrader: (0)	When doing this you need to upgrade the fuel lines. The rubber hose is not made for e85. You will need a QFS 9mm Corrugated PTFE hose. The XDI 35 will handle up to E50 with FBO tuned. After that you will need Port Injection or XDI 60 upgrade. __________________ N55 GENERAL David Shoup Tuned Fully Built By Miami Engines/Project Motorworks Precision 6266 On Steroids
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12-01-2019, 02:22 PM	#41
jayster0966 Second Lieutenant 209 Rep 221 Posts Drives: 2011 535i Join Date: Jul 2018 Location: Orange County, CA iTrader: (2)	Just finished doing this upgrade and I must say that it was way easier than I originally expected. I used the following kit. https://www.ebay.com/itm/GENUINE-WAL...72.m2749.l2649 Everything needed was in there and swap was straight forward. You can save a fair share of money doing this mod yourself. Only thing i did slightly different was i had to clamp the end of the nylon hose as it did pop off during testing. (all good now) On to installing my port injection!
	Appreciate 1 E92TTCoupe144.50 Quote

12-01-2019, 03:41 PM	#42
ziekxq Major 320 Rep 1,299 Posts Drives: 2011 535i xDrive Join Date: Feb 2016 Location: United States iTrader: (0)	I wish I would have found this earlier lol... Had so much trouble with the hose... That would fit.
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