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Fuel-It! Walbro Stage 2 LPFP Upgrade E8X, E9X

Fuel-It! Walbro Stage 2 LPFP Upgrade E8X, E9X

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If your current Low Pressure Fuel Pump (LPFP) is struggling to keep up, is old and tired, or you need an E85 compatible pump assembly, this is the upgrade for you!

What’s included with my new plug and play upgraded pump assembly?

New OEM float
New OEM O-ring
New OEM bucket
New Walbro filter
Spare vent tube clip
A new E85 compatible Walbro pump
Custom fitting to optimize the venturi and pump output
Choice of Walbro 450 (F90000274) or Walbro 525 (F90000285) pump

 

Common Questions

 

Q: How much fuel does a stage 2 flow?

A: Stage 2 pump flows approximately 100% more than stock

 

Q: How much more does the Walbro 525 flow than the Walbro 450?

A: Approximately 10%

 

Q: What kinds of fuels can I run with the upgraded pump?

A: This upgrade is compatible with pump gas, race gas, and E85.

 

Q: Does the upgraded pump pull more current than stock?

A: Yes, upgraded pumps pull more current, so if your EKP (LPFP control module) is weak, it may overheat causing it to shut down and need to be replaced.  If this is a concern for you checkout our FI-650HP fuel pump upgrade kits that retain the stock LPFP and add a secondary pump.

https://www.fuel-it.com/bmw-e-series-fi-650hp-lpfp-upgrade/

 

Q: Can I send my stock pump in to be upgraded?

A: Yes, we offer that option as well. Here is the link for that.

https://www.fuel-it.com/bmw-e-series-walbro-stage-2-lpfp-upgrade-diy/

 

Q: Are there any recommended accessories?

A: Yes, the lock ring for the pump assembly can be difficult to remove so we recommend adding our lock ring removal tool

 

Q: How much power will the 450 pump support?

A: That varies based on a variety of things such as actual power, fuel type, AFR’s, etc. Generally speaking the 450 will support approximately 500whp on E85 or 550-600whp on pump or race gas. The 525 pump upgrade will support approximately 10% more than the 450 pump will.

 

Q: My car is a Euro spec vehicle, will this work?

A: Yes, however due to different emissions requirements, the top portion of your fuel bucket assembly (top hat) is different and doesn't have a large vent tube connection.  For this reason, we do not send the top hat to international customers as this often causes confusion.  Those customers will simply re-use their current top hat when installing their Stage 2 pump assembly.

 

Q: How can I tell if my car is North American Spec or European Spec

A: Generally all cars from the US, Canada, and Mexico are North American Spec. All others are European Spec but to verify you can simply look at the top hat (no need to open the tank). If there are two electrical and two plumbing connections, its North American spec. European spec cars will have two electrical connections and one plumbing connection.

 

Q: What vehicles are compatible with this upgrade?

1' E88         (11/2006 — 10/2013)

1' E82         (11/2006 — 10/2013)

3' E90         (02/2004 — 09/2008)

3' E90 LCI   (07/2007 — 12/2011)

3' E91         (02/2004 — 08/2008)

3' E91 LCI   (07/2007 — 05/2012)

3' E92         (05/2005 — 02/2010)

3' E92 LCI   (11/2008 — 06/2013)

3' E93        (09/2005 — 02/2010)

3' E93 LCI   (11/2008 — 10/2013)

X1 E84       (04/2009 — 06/2015)