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2014 Ford Fiesta ST project

44083 Views 126 Replies 27 Participants Last post by  twendt
So I picked up a 2014 Ford Fiesta ST to play with. There are a bunch of reasons I did this so I'll just make a simple numbered list to help explain why.

1. I wanted a small lightweight car again (It's 27XXlbs)
2. I wanted to learn the Ford ECU
3. I wanted to track a small lightweight car
4. I wanted a small lightweight car that got great gas mileage for my commute

That's about it overall for the reasons. With over 20 years of driving Mitsubishis, Subarus and VW's I never ever ever ever thought I would own a Ford....

For some reason the Focus ST never really intrigued me. After reading all the press about the Fiesta ST, it did intrigue me, I went and test drove a bunch and I totally fell in love with the car. It really feels like something special, a Ford engineering baby.

I still own my current Evo, an Evo 10, for now. It's in a different league for sure, but I didn't buy the Fiesta ST to replace the Evo. So enough about that.

This thread will serve as a place to post my findings as I learn the car, the ECU, etc.

I come from a tuning background. I used to tune Mitsubishis professionally, mainly Evos. Most recently a 2005 Evo 8 MR for 10 years that was my personal project, that I tuned and tracked. It had 500hp on E85. I also had a 2010 Mitsubishi Lancer Sportback Ralliart that I also tweaked and tuned to 400hp on E85. As stated above still have my Evo 10, 400hp, also on E85. You can sense what's coming for the Fiesta ST then.

Initial photos, 100% stock minus upgraded wheels/tires.

2014 Ford Fiesta ST
Recaro Package
"Rado" wheel package (painted wheels and brake calipers)

Wheels replaced with Sparco Assetto Gara 17x7 +42 satin black
Tire replaced with Bridgestone Potenza S-04 205/45/17

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Changes that RESULT in increased boost are allowed as long as the boost controls are not directly modified. This is why I ended up in DSP class with the Cobb stage 1.
So you're mixing E10 and E85 at the pump and using ATR to roll your own tunes? Looking for others to test that tune as well? I have ATR, but I have an induction tube and K&N panel filter. Those shouldn't make a huge difference.
It's currently 4 gallons of E85 to the rest of the tank 91 octane.
Willing to share that tune?
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That is pretty much the same gains as cobbs stage 3! That really does blow my mind what tuning with e blend can do. Any chance you might want to sell your tunes?
You know there are a bunch of us ready to pay for this. you should be compensated for your time and knowledge. Even if you don't want to formalize it, give us a paypal address so we can throw something your way. This is way too much tease, please share it.
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I would have to become a Cobb Protuner (again) to sell Cobb maps for profit and I'm not in this to make money.

I will continue to share my findings for sure. I think there isn't an issue with sharing maps either if people are curious to see them. You would need to have Accesstuner Race though.
I also have ATR and understand that I would be using this at my own risk.
Yep, after 80+ autocross runs and 11k miles, my oem pads still have plenty of life left.
I have about 70 runs and 30,000 miles on the original pads and still plenty of life in mine too.
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