Fuel Injectors for E85 - MustangForums.com

5.0L V8 Technical Discussions Any questions about the 'Coyote' engine, transmission, exhaust, tuners/CAI, or gearing can be asked here!

Fuel Injectors for E85

Old 01-23-2018, 01:07 PM
Thread Starter
ewmohr's Avatar
Join Date: Aug 2017
Location: Ohio
Posts: 16
Default Fuel Injectors for E85

I am considering installing some Ford Performance 47lb injectors so I can run E-85 in my 2012 GT Auto. Looking for pros and cons. I already have an SCT tuner and a Steeda Cold Air Intake. Hoping to shave a tenth or two off my quarter mile time. Do I need a boost-a-pump? Do I need anything else? Should I just save my money?
ewmohr is offline  
Old 01-24-2018, 08:17 AM
Buck Sergeant
2nd Gear Member
Join Date: Aug 2017
Location: North Carolina
Posts: 444
Default Fuel Injectors for E85

While the stoichiometric (chemically ideal) air/fuel mixture ratio for gasoline is approximately 14.7:1, with ethanol it is around 9.79:1. In carbureted applications you will usually need higher-flowing metering blocks calibrated for E85, while in fuel-injected applications you may need to upgrade the injectors to a greater lb/hr rating. In all cases, Ksiazkiewsicz notes, “You need to look over your entire fuel delivery system, including the pump and lines, to ensure it can deliver the additional fuel mass.” And while you’re there, here is another issue to consider: materials compatibility. Ethanol can be downright unfriendly to some traditional fuel-system materials-cork, for example. On late-model cars it’s not a big problem since they are already designed for fuel blends up to E20 (20 percent ethanol). But on older cars in particular, gaskets, seals, and hoses will need to be updated to ethanol-compatible materials, as in the long term the exposure will shorten their service lives. Also, aluminum fuel lines must be fabricated from standard anodized tubing. Naked aluminum corrodes when exposed to ethanol. However, ethanol presents no hazard whatsoever to oxygen sensors and catalytic converters-a definite plus.
Buck Sergeant is offline  
Old 01-24-2018, 08:54 AM
3rd Gear Member
Join Date: Dec 2008
Location: LA
Posts: 855

Save your money.
proeagles is offline  
Related Topics
Thread Starter
Last Post
Lethal Performance
10-02-2012 10:34 AM
Cobra Drifter
Parts For Sale
03-31-2011 02:22 PM
V6 (1994-2004) Mustangs
01-09-2011 08:46 PM
GT John
2005-2014 Mustangs
03-30-2006 01:59 AM
General Tech
08-13-2004 04:26 AM

Thread Tools
Search this Thread
Quick Reply: Fuel Injectors for E85

Featured Sponsors
Vendor Directory

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.