Required Upgrades for E-85?

[engineermike]

Uh, is that on the stock Whipple tune? If so that’s not going to work at all.

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[Blueflash]

Yes it's the stock Whipple tune. I'd like to have a flex fuel tune. It's a FFV

 

[engineermike]

Yes it's the stock Whipple tune. I'd like to have a flex fuel tune. It's a FFV

No aftermarket supercharger is supplied with a flex fuel tune. Please switch back to gasoline before something bad happens. We can discuss flex fuel tunes all day on here if you like, but right now you need to return the vehicle to a safe state.

 

[LOL WUT]

Yes it's the stock Whipple tune. I'd like to have a flex fuel tune. It's a FFV

Im sorry, but what made you think you could run E85 on the whipple 93 tune?

 

[Blueflash]

Im sorry, but what made you think you could run E85 on the whipple 93 tune?

No need to be sorry. What makes you think it can not be done? My LAMBDA is fine across the board. What am I missing?

 

[engineermike]

 

[engineermike]

My LAMBDA is fine across the board. What am I missing?

A LOT. There's way more to flex tuning than lambda.

 

[LOL WUT]

No need to be sorry. What makes you think it can not be done? My LAMBDA is fine across the board. What am I missing?

Whipple doesn’t provide a flex fuel tune as far as I know. While your F150 may have been flex fuel capable from the factory, the addition of the Whipple and subsequent tune have drastically changed the fuel demands. While I haven’t reviewed a Whipple tune, I can imagine it’s set for 91 or 93 octane only. Running E85 is putting it drastically outside of its targeted fueling parameters.

Furthermore, your car is literally throwing codes that say everything is not okay.

 

[Blueflash]

Thanks. I know I do not have a flex tune. It's 93. It threw the codes when I reached about E80, so it doesn't need too much more than the stock system can deliver. What I was wondering, was how much the DI could be raised to compensate. Not looking to add lots of expense and complexity to the fuel system

 

[LOL WUT]

Thanks. I know I do not have a flex tune. It's 93. It threw the codes when I reached about E80, so it doesn't need too much more than the stock system can deliver. What I was wondering, was how much the DI could be raised to compensate. Not looking to add lots of expense and complexity to the fuel system

What is your current fuel system comprised of? Injector size, fuel pump, boost a pump, etc.?

 

[Blueflash]

Its the stock fuel system except for the 55# port injectors that came with the kit. And being a Gen 3, it has direct injection also

 

[K4fxd]

Mike probably has the most experience tuning super charged mustangs. I would listen to him.

Couple of questions,
You say you want to change the DI percentage. Do you have software to be able to do this? If not how would you go about it.

 

[engineermike]

With a stock fuel pump and no bap, I bet the fuel pressure is dropping like a rock.

The truth is that the 55# port injectors plus stock di will support a lot of power on e85, more than most would have you believe. The stock pump needs a bap at a minimum to support even low boost levels on flex tuning. Really a dw400 and bap would be best.

That said, you need tuning to get there first and foremost. And therin lies the problem.

 

[engineermike]

The really cool thing about the gen3 is that you can vary spark timing with ethanol level. Without higher timing, the ethanol is barely worth any power at all. But it takes flex tuning to make it work. Also, and almost no one is doing this, the gen3 can vary boost level as a function of learned ethanol. I have mine set up to run 0 psi in tow mode, 10 psi on gasoline, and 14 psi on e85.

 

[KPM Fuel Systems]

I haven't had the opportunity to read through the whole thread but has anyone had experience in running a direct fuel system instead of a return?
We are producing drop in Fuel Systems that can handle up to 2700hp with no drop in fuel pressure and no heat soak in the tank.

https://kpmfuelsystems.com/product/kpm-1500hp-fuel-and-pwm-system-mustang-gt-2015-onwards/

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