FI System with least Heat Soak Issues

[vtknight]

I guessed that would be the smart thing. I know when I used to use Alcohol and Nitro, I would first put any Seals or O Rings in a glass of it for 24 hours and then examine to see if they had swelled or deteriorated. Plus unless the Fuel Pump was designed to run this 24 7 at some time it will be negatively affected. I do appreciate your help.

No problem - and yes - the fuel system we had were all designed for ethanol use in mind.

Sponsored

 

[bankyf]

I could be wrong, I do not believe that any of the popular mustang tuners are using the flex fuel logic for their E85 tunes on FI. I do know that it is popular without FI, but I believe the fact that it is somewhat slow to adapt makes it too risky for FI.

 

[vtknight]

I could be wrong, I do not believe that any of the popular mustang tuners are using the flex fuel logic for their E85 tunes on FI. I do know that it is popular without FI, but I believe the fact that it is somewhat slow to adapt makes it too risky for FI.

Lund is tuning my build - and I think you are correct that they do separate pump and E85 tunes. That said I had flex fuel on my 1650 whp non-Mustang build - and it exists on even more powerful builds on the same platform - so I don't think it is accurate to state it isn't a solid FI option.

 

[AZ18yote]

Lund is tuning my build - and I think you are correct that they do separate pump and E85 tunes. That said I had flex fuel on my 1650 whp non-Mustang build - and it exists on even more powerful builds on the same platform - so I don't think it is accurate to state it isn't a solid FI option.

In the last 3-4 years I have yet to encounter a tuner (remote or local) that will do a flex tune on a boosted Coyote. E85 tune sure. Pump gas sure. Flex for NA sure. But not FI flex on a newer Mustang.

 

[vtknight]

In the last 3-4 years I have yet to encounter a tuner (remote or local) that will do a flex tune on a boosted Coyote. E85 tune sure. Pump gas sure. Flex for NA sure. But not FI flex on a newer Mustang.

I have no doubt you are correct...I am interested to know why. That said for my Whipple setup - having to change the belt anyway - getting the E85 tune loaded isn't a big issue. You are going to run around with the same belt until you change it out anyway.

 

[bankyf]

I have no doubt you are correct...I am interested to know why. That said for my Whipple setup - having to change the belt anyway - getting the E85 tune loaded isn't a big issue. You are going to run around with the same belt until you change it out anyway.

Was your other build on a Ford platform? If not, that could explain why. Ford does not use an actual sensor and their logic is slower to adapt compared to other manufacturers.

 

[DougS550]

Lund is tuning my build - and I think you are correct that they do separate pump and E85 tunes. That said I had flex fuel on my 1650 whp non-Mustang build - and it exists on even more powerful builds on the same platform - so I don't think it is accurate to state it isn't a solid FI option.

?

 

[vtknight]

Was your other build on a Ford platform? If not, that could explain why. Ford does not use an actual sensor and their logic is slower to adapt compared to other manufacturers.

No - as I said above - different platform. A poor fuel sensor system - that would explain it...

 

[vtknight]

You are correct. I was told by Whipple and Hillion that a flex tune is the safest way to go. The loss in HP was negligible. Thanks for your input

Okay - some different feedback. Whipple and Hellion are good sources - direct. I will say the concept is a good thing if it works on the platform as intended and expected. It worked well for some non-Mustang builds I have owned. Ethanol is a game changer and it is the only fuel I use today (E98). This build will be my first use of E85.

 

[DougS550]

Okay - some different feedback. Whipple and Hellion are good sources - direct. I will say the concept is a good thing if it works on the platform as intended and expected. It worked well for some non-Mustang builds I have owned. Ethanol is a game changer and it is the only fuel I use today (E98). This build will be my first use of E85.

I corrected my post. I am going through my emails to see exactly what and who said what concerning the flex tune.

 

[jmeiers]

I have left pump E85 in my tank for months, over the winter, and it fires right up whenever I feel like driving the car. Going on 2 years straight of running E85 exclusively on my car.

 

[DougS550]

I have left pump E85 in my tank for months, over the winter, and it fires right up whenever I feel like driving the car. Going on 2 years straight of running E85 exclusively on my car.

That is good news to hear. What set up are you running. I didn't see the info on your Member Info.
Just wondering. How does your car start up and drive? is it close to OEM?
Thank you for your help

 

[SpeedLu]

Centris would be your best bet.

 

[DougS550]

Centris would be your best bet.

Yep, that seems to be the way to go. Some people I don't think fully under stand how damaging a high intake charge is to an engine. Thanks for your help.

 

[engineermike]

Centris would be your best bet.

Yep, that seems to be the way to go. Some people I don't think fully under stand how damaging a high intake charge is to an engine. Thanks for your help.

Curious if y’all saw the actual data logs that were posted.

Sponsored