When you've been loitering the forums or even Facebook groups recently, you've definitely heard people raving about getting a stratified focus st tune to wake up up their car. It is pretty much the "gold standard" for the Mk3 Focus ST system, as well as for good reason. When you very first drive a stock ST from the great deal, it feels punchy and fun, yet after a several months, you start to notice where Ford left some efficiency on the table. The throttle may feel a bit very lazy, and the power seems to drop flat on the face once you get higher in to the rev variety.
That's where a professional tune comes within. It isn't simply about making the car go faster—though that's a huge component of it—it's about making the car drive the way this probably should have got from your factory. Stratified has spent many years refining their road directions for the EcoBoost motor, and honestly, the particular difference between the stock car and something running a Stratified flash tune will be like day and night.
The Problem With Off-The-Shelf Tunes
When most individuals purchase a Cobb Accessport, they immediately flash one of the "Off-The-Shelf" (OTS) maps that come pre-loaded on the gadget. While they are okay for a short-term boost, they're designed to be extremely common. They have in order to work on an automobile in the freezing cold of North america plus a car within the blistering high temperature of Arizona, using various qualities of fuel. Simply because they possess to be so broad, they aren't optimized for your specific vehicle or your local fuel quality.
A stratified focus st tune is different due to the fact it's tailored particularly to your modifications and your fuel. Actually their "Flash Tunes, " which are pre-configured depending on a form you fill in, are miles in front of a generic OTS map. They get into consideration your intake, your intercooler, plus your exhaust setup. It leads to a much smoother power delivery and, more importantly, a safer engine.
Drivability Is Where the Magic Happens
One thing I noticed soon after switching to Stratified was how much better the throttle felt. In the particular stock tuning, Ford uses a wide range of "rev hang, " plus the throttle mapping can feel a bit disconnected. Stratified washes all of that will up. They offer different throttle mapping options, like their "Linear Throttle, " which makes the pedal feel more like a traditional cable-driven throttle. In case you push the particular pedal 20%, you get 20% of the power. It makes the car way more predictable whenever you're carving through backroads or trying to rev-match a downshift.
Then there's the low-end torque. The Focus ST is well-known for as being a "torque monster, " but the stock tune tends to remove all of that torque at once and then taper off. Stratified handles that boost much better. You nevertheless get that strike within the chest whenever you floor this, but it feels more controlled and carries further in to the RPMs. It can make the car feel significantly more athletic instead than just an one-trick pony that will only likes second-gear pulls.
The particular Fun Stuff: Crackles and Features
Let's be real—part of the cause we tune these types of cars is regarding the "smiles per gallon. " Stratified is well-known regarding their "Chard plus Crackle" features. If you have an aftermarket downpipe, you can opt for their exhaust system crackles. It's not just a continuous machine-gun spray associated with noise; they offer different levels. You can go along with a "Mild" environment which gives you several nice burbles whenever you let off the gas, or even "Loud" if a person actually want to wake up the neighbors.
These sheets several really cool specialized features through the particular Cobb Accessport. Things like Flat Foot Switching (FFS) and Launch Control (LC) are usually game-changers. With Flat Foot Shifting, a person can keep your right foot pinned towards the floor whilst you shift, and the tune will host the RPMs in a specific point so that you don't lose increase between gears. It sounds cool, but this also the actual car significantly faster in a straight range.
Keeping the particular Engine Safe
We can't talk about tuning an EcoBoost without talking about safety. The 2. 0L EcoBoost is usually a stout motor, but it's susceptible to something called LSPI (Low Speed Pre-Ignition). This happens when you put too much load for the engine at low RPMs—like flooring this in 6th gear at 2, 000 RPM. This is usually a notorious "engine killer" for the ST.
The group at Stratified develops a lot of safeguards into their stratified focus st tune to help prevent this particular. They also make use of the Cobb Accessport's monitors to issues like "Octane Adapt Ratio" (OAR). This is a number that lets you know how much the car likes the fuel you just put in. If you obtain a bad set of gas, the OAR will shift, as well as the tune will automatically pull back timing to maintain your pistons through melting. Having that peace of brain is worth the price of the tune alone.
How the Process Actually Works
If you've never bought the custom tune prior to, the process is pretty straightforward. You head over to their site, select the tune that matches your "Stage" (Stage 1 is usually just an intercooler or intake, Phase 3 is full bolt-ons), and fill up out a detailed form. You'll inform them every imod you have, what fuel you use, and exactly what "extra" features you desire.
The few days afterwards, they email a file. You weight that file on your Accessport, plug it into your car, and flash it. If you want to go a step further, a person can do "Data Logging. " This involves driving the particular car while the Accessport records what the sensors are usually doing, then sending that data to Stratified. They glance at the logs, see just how the vehicle is reacting, and send you a revised version of the tune. It's a back-and-forth process that ensures your own car is working perfectly.
Precisely why the Intercooler Is definitely Non-Negotiable
If you're planning upon running a stratified focus st tune , do yourself a favor plus buy an auto aftermarket intercooler first. The particular stock intercooler on the Focus ST is honestly tiny. It's barely plenty of for the stock power levels. Once you start including boost using a tune, the "Charge Surroundings Temps" (CATs) may skyrocket after just one pull.
When the particular air getting put to the engine gets too hot, the particular car's computer will pull timing to protect itself, plus you'll lose all that extra strength you just paid for. Stratified tracks are great, but they can't fight physics. A good intercooler keeps those temps down, allowing the tune to stay consistent even when you're driving hard upon a hot summer time day.
The Long-Term Experience
I've talked to guys who have got been running a Stratified tune with regard to 50, 000 or even even 100, 500 miles without any major issues. The particular key is servicing. When you're pressing more power, you have to be a bit even more diligent. You'll would like to change your oil more often and keep an eye on your spark plug gaps. Most tuners, including Stratified, recommend gapping your plugs a little bit tighter than factory specs to avoid "spark blowout" under high boost.
The particular best thing regarding the tune is definitely that it doesn't ruin the car's daily drivability. If you're just traveling on the highway, you wouldn't even know the particular car is configured. It still gets decent gasoline consumption (as long as possible maintain your foot from it), and it doesn't feel jerky or temperamental. Yet the moment you drop it into third gear in order to pass someone, the vehicle just takes away from.
Final Ideas
All in all, a stratified focus st tune is probably the greatest bang-for-your-buck modification a person can do. For a couple hundred bucks, you obtain a significant bump in horsepower and torque, better throttle reaction, and a selection of features that will make the vehicle way more fun to push.
It turns the Focus ST from a "hot hatch" in to a legitimate overall performance machine. Just make sure a person have your maintenance up to date, grab a solid intercooler, and prepare in order to fall in love with your car all over again. The particular ST community is usually huge, and there's a reason so a lot of of us end up getting that Stratified sticker on our one fourth windows. It simply works.