Consolidated Ecoboost Fueling thread

Josephm said:
4DRHTRD said:
Josephm said:
Did i read that correctly that you are running 15 Gal of E85? 15/18.6, that's an 81 percent mix. Be careful to monitor A/F, the mazdaspeed's that ran over 50 percent mix's got sticky fuel pump issues
No issues with my car for 2K miles on full E85, just FYI

Your flex? I never seen you ran a 100% E85???
As soon as I went dual itfp I went 100% e85. The car would run 50/50 e85 on stock fueling at 500hp thanks to the dual pumps.

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4DRHTRD said:
redsand said:
My tank is 36 gallons. 
Bob, would a stock F150 pump work in your basket?  I had mine flow tested at DW it was flowing 290lph at 40psi I believe.  I see from the pictures you guys don't have much for working room. 
No those pumps won't work in ours, you have Walbro 430 with the ledge, we have a regular Walbro 255 body.

4DR, did you ever find any Ford pumps that would fit in our basket or fit in our tank that are larger volume than current pump????
 
I've got a DW in my garage too, never been used. Its been in tank but never used. Don't think its a 300 though, 265 comes to mind.
 
I wish my FRP was consistent, when looking at a log of it you'd think you were looking at the read out of an earthquake happening
 
redsand said:
Wow, they make you pay to read the forum? That is BS.  I will probably try a higher amount of E85 next go around since I doubt this was true E85. They do sell E40 or 45, at that station so I may just try a full tank of that depending.

See if you can find the MSDS sheet.

I was able to find Speedways and their E-85 is 75 to 85 percent, I assume it changes with the seasons.
 
What is the safe pressure limit for the HPFP? Like others have mentioned, the SHO will see over 2500 psi. At 18 psi, I'm seeing 2300 psi and my WOT lambda is about 0.85
 
metroplex said:
What is the safe pressure limit for the HPFP? Like others have mentioned, the SHO will see over 2500 psi. At 18 psi, I'm seeing 2300 psi and my WOT lambda is about 0.85
IIRC the pump and rail are rated for 3K.

I peak about 3100 in the rail and haven't had an issue....yet.

 
Cool, I'm going to run the stock fuel pressure settings and see how it fares. I had been setting it to a max of 2500 psi, but I'm curious how it would run at stock max of 2100 psi.

I found these from the stock tunes:

SHO settings:
4 lobe HPFP
1.12 cm3 capacity
165.80 cm3 rail volume

2012-2016 F-150 EB 3.5 settings:
3 lobe HPFP
1.23 cm3 capacity
130.36 cm3 rail volume
 
sorry to bring this back from the dead, but it's a very interesting read.

Playing with E85 in my 2013 SHO PP, and am looking at fueling upgrades to do before upgrading the HPFP itself.

So what was everyone able to do using a Walbro 450 pump and a Boost a Pump? Looking at the offerings from VMP and Fore Innovations.
 
FiveLeeter918 said:
sorry to bring this back from the dead, but it's a very interesting read.

Playing with E85 in my 2013 SHO PP, and am looking at fueling upgrades to do before upgrading the HPFP itself.

So what was everyone able to do using a Walbro 450 pump and a Boost a Pump? Looking at the offerings from VMP and Fore Innovations.
You looking to run straight E85 or a stout blend?

There is a good argument to be made for blending unless convenience is a big factor for you.

The input pressure from the LPFP hasn't been any sort of an issue.

IMO, unless your are going big turbos/built motor, there really is no point. I'm sure I have have enough octane to induce all kinds of powertrain trauma, knock free of course, lol.

Tune it to the strengths of E85 and you will have a beefy rail, tons of spark, and a much fatter wallet.



 
FiveLeeter918 said:
I'm currently tuned for E35 and starting to see drops in the HPFP, was hoping some low pressure mods might help to keep that flow up.
You might want to consider dropping down the boost and running lots of spark.

Got any logs?
 
FiveLeeter918 said:
tried that, didn't work any better for me :(

Then something isn't right OR you didn't drop boost enough.

When you decrease the amount of air going into the engine then you decrease the amount of fuel needed to achieve commanded air fuel ratios. When you decrease the amount of fuel being sprayed that will have an effect on rail pressure...You can't fight the physics.
 
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