I wanted to take time to show some gratitude for those who have helped me out during this journey.įirst, I want to thank Luis Ricardo Santiago, my Hypermotive parts guy! Luis is the BEST asset for all your Focus ST parts, upgrades and advice! He makes it so simple, offers recommendations based on what he and his customer’s have seen, has exceptional prices and makes ordering a breeze with super fast shipments! Doesn’t get much easier! He’s tha man! I now have applied the Stratified E-85 Flash Tune via the AccessPORT and have done the 3 gallons E-85 and topped it off with 93. This definitely added a good deal of pickup to the car, and the numbers proved it! Went from 242.9 whp & 330.3 wtq up to 261.9 whp & 349.5 wtq! If you would like to learn more on the subject, please visit the forums and research. By introducing the E-30 mixture, you are effectively increasing your octane level quite a bit beyond 93, allowing for higher boost and more aggressive tuning while still avoiding detonation. By introducing a blend of E-85 along with high test 93 octane fuel, you achieve a mix closer to E-30, which has been proven to yield significant performance increases, especially in turbo-charged engines. The FoST, although not designed to run on 100% E-85, can tolerate E-10 to E-15 all day long, it even says so right on the gas gap. E-85, as you may know, is the fuel that can be used in the Flex Fuel capable vehicles. In addition, the OTS tunes have to run super conservative since they are “off the shelf” tunes that have to work & perform in a huge variety of conditions, gas quality & grades, altitudes, etc. Now that Cobb stage 3 has been installed, I wanted to look further into tuning as the OTS tune from Cobb still left a lot to be desired on the whp side of things. Honestly, I was expecting more from the whp perspective however, the wtq was off the charts! Going from 265 to 330 is a HUGE difference on the street! That is a gain of + 11% whp and + 24% wtq. It came in 242.9 whp & a whopping 330.3 wtq on the best run. At this point, from a tuning perspective, I just applied the Cobb OTS stage 3 93 octane tune that came with the AccessPORT. Cobb really does make top-notch products, perfect fitment and excellent quality, I could not be happier! After installing these components, I took the car back to the dyno for another run to see performance gains from the additions. Cheesy, so it was blocked off in lieu of actually hearing the real engine!), and Cobb short-shift plate to reduce shifts by 40%.
FOCUS ST COBB STAGE 1 GAINS FULL
The best setup I could find was the stage 3 kit by Cobb Tuning! This kit had it all, the full turbo-back exhaust with a catted down pipe, intake, FMIC w/ new charged air piping, rear motor mount (RMM) and last but certainly not least, the Cobb AccessPORT v3! In addition to the Cobb Stage 3, I also added the Turbosmart 50/50 blow off valve (BOV), Cobb symposer delete (which was a fancy little thing Ford added to channel intake air into the cabin to make the car sound more throaty. One of the main things I wanted to do to the car once I bought it was change out some of the basics, such as intake, exhaust and front-mount inter cooler (FMIC). It came in 219.5 whp & 265.9 wtq on the best run. From there, before modifying anything, I wanted to get a solid baseline on the dyno to see exactly where the car was from a whp and wtq perspective.
![focus st cobb stage 1 gains focus st cobb stage 1 gains](https://www.cobbtuning.com/wp/content/uploads/2021/06/focus-st-accessport-main.jpeg)
The car was originally purchased from Wade Ford without any mods, new vehicle. Speaking of power, let’s get to the mods! Since I have had the FoST, I have not averaged below 20mpg on any tank! Typically, during normal conditions, commuting to and from work, i’ll average closer to 24mpg! On the highway, cruising, these numbers continue climbing closer to 30mpg! Simply amazing, in my opinion, for the amount of power it is capable of putting to the road. The car is a perfect commuter to and from work and for longer trips due to the exceptional mpg-to-horsepower ratio! Although this 4 banger puts out some serious ponies and torque for its size, it does so extremely efficiently. My FoST came with the full Recaro seats, ST3 and 402a packages. Keep in mind, these numbers are not at the wheels, but measured at the crank, so the actual wheel horsepower (whp) and wheel torque (wtq) will be less. From the factory, this car puts out 252hp and 270 ft.lbs of torque. The Focus ST is an amazing little car! It comes with the Ford EcoBoost 2.0 liter 4 cylinder direct injection turbo-charged engine. This page is dedicated to tracking the modification progression of my 2015 Focus ST (FoST) along with performance gains realized. Welcome to my 2015 Focus ST build thread!