An Inside Look at the CorkSport EBCS

We recently came across one of the original CorkSport EBCS prototypes which gave us a perfect opportunity to break it down and give you all an in-depth look. Read on as I go through what makes the CS EBCS tick, and more importantly how it gives you great boost control on your Mazdaspeed.

Just as a refresher before we dive in, an electronic boost control solenoid (EBCS) allows for precise boost control by using an electric solenoid to help control the wastegate. A boost reference travels to the EBCS where it can either push on the wastegate diaphragm or vent to the turbo inlet pipe. Where the air travels is controlled by the solenoid.

Obviously, the specifics change slightly depending on a number of factors with the turbocharger setup, but the concepts remain similar. Since the solenoid is electronic, it can be controlled within a tune. This means you are not wholly controlling your maximum boost with the spring in the wastegate and can hit boost targets larger than the โ€œ10psiโ€ spring in your wastegate. For more information on boost control and the different EBCS setups, checkout Barettโ€™s white paper on the subject.

Now the above image is a little different from the way you are usually seeing the CS EBCS. Not only is it missing the sweet black anodized finish (early prototype remember?), it needs some assembly before it can function properly. Below lists the components in the system and a short description of what they do. Obviously, we are missing a few key o-rings to keep everything nice and sealed, but all the important bits are there.

  • Manifold: This is the air distribution block. Air/boost comes in one port and leaves through a different port. Where the air goes is determined by the bullet valve.

  • Bullet Valve Assembly: More on this later, but essentially the center rod (piston) moves in and out while the black portion prevents air from reaching one of the manifold ports as needed.

  • Tension Spring: Keeps the bullet valve in the correct position when the system is not energized.

  • Coil Seat: Ensures the copper coil stays in place so the valve can operate properly.

  • Coil/Windings: Creates a magnetic field when energized that moves center rod of bullet valve.

  • Solenoid Body & Wiring: Contains the coil and other components. Also attaches the valve to the manifold.

Each one of the โ€œthirdsโ€ of the bullet valve corresponds to one port on the EBCS manifold. They are labeled accordingly above. As EBCS is energized, the piston of the valve is pulled by the magnetic field created by the windings. There is a small amount of movement; only about 12 thousandths of an inch (0.012โ€) to be exact, which is enough to allow air to either reach the wastegate diaphragm or pass by into the turbo inlet pipe. Again this is simplified as it does not touch on duty cycle-the valve is typically rapidly opening and closing (seriously, check out the white paper).

The bullet valve is advanced technology that offers the utmost in fast responding fluid control. In addition, its profile offers the ability to make a pressure balanced valve and have a manifold that fits just about anywhere. All of this tech means you end up making boost faster, minimizing boost spikes, and keeping boost creep in check. If you want the best in boost control for your Mazdaspeed, be sure to pick up a CorkSport EBCS.

2010-2013 Mazdaspeed 3 โ€“ Best Way to Get 40+ HP

Your Mazda breathes just like you do. Maximizing the intake of air for your Mazdaspeed and freeing up the expulsion of used gases (exhaust) will help your vehicle breathe better and go faster.

Intake to Boost Your Turbo

On the intake side, you can set yourself up with a Stage II Power Series Short Ram Intake, which includes our mandrel-bent turbo inlet pipe, custom-designed MAF housing, and silicone coupler. This will free up the airflow into the stock K04 turbo and allow your Mazdaspeed to breathe deeper. The average gains seen here are 10-15 hp.

CorkSport Short Ram Intake

Exhaust Parts For Performance

For exhaling, you want your Mazdaspeed3 to expel all those used gasses as quick as possible. With the CorkSport turbo-back exhaust, you are reducing the back-pressure and allowing your Mazdaspeed to utilize the potential of its turbo. The kit comes with CorkSportโ€™s full 80mm catback dual exhaust, racepipe, and downpipe. This setup will give the average Mazdaspeed3 owner 28-31 hp at the wheels.

CorkSport Mazdaspeed 3 Turbo Back Exhaust Image

Power Gains Add 46 WHP!

Shown below is our 2010 Mazdaspeed 3 with the CorkSport Short Ram Intake & Turbo-back exhaust and stock turbo, compared to the same Mazdaspeed3 completely stock. The before number is 226 hp and came out to 272 with the SRI and Turbo-back exhaust. That is a 46 hp increase to the wheels with two products.

Mazdaspeed 3 2010- 2013 Dynograph results with SRI and Turbo Back Exhaust add 46 WHP


For those of you on a budget, may I suggest just the Short Ram Intake and racepipe? For this smaller investment, you can get an increase of wheel hp in upper 20โ€™s to lower 30โ€™s.

Safely Upgrade Your Mazdaspeed Turbo

It doesnโ€™t take long for those building power to use up the stock Mazdaspeed K04 turbo. They are prone to fail, especially when you start shoving that extra air through it. A common question is, โ€œMy Mazdaspeed is smoking, is my turbo bad?โ€

First things first. There is a BIG difference between replacing a bad turbo and upgrading Mazdaspeed K04 to a more efficient one for more power. If you want to replace it, go with OEM and just plug and play, youโ€™re good to go, wash your hands, and get on with your life. This will have your car up and running pretty quickly. However, your maximum power output will be limited and you will eventually have the same problem – the Mazdaspeed KO4 turbo will fail.

If you are saying to yourself, โ€œItโ€™s time to upgrade the K04 Turbo…I NEED more power in my life!โ€ Then this blog is for you. Below, we lay out the basics needed to successfully install a CorkSport Mazdaspeed Turbo, highlighting the required supporting modifications to keep your Mazdaspeed safe. As a bonus, we keep our installation instructions on each of our product pages, so you can preview how easy the installation will be for your experience level.

Mazdaspeed Turbo Upgrade for the K04 BNR

Here it is, the list is comprised of the BARE essentials to run the 18G CorkSport turbo.

HPFP INTERNALS

Giving you 50% more efficiency with your fueling system, as well as, a strong base to build power for your Mazdaspeed. The CorkSport Max Flow Fuel Pump Internals are built to directly replace your stock fuel pump internals and perform with immediate improvements.

CorkSport fuel pump vs. competitors

ACCESSPORT (or VERSATUNE if you have a CX-7)

The Cobb Accessport will give you the basis for tuning, and since this is required with the CorkSport turbo – youโ€™ll want to make sure you have this in hand and ready for when you install your turbo.

These are the basic foundations of our Mazdaspeeds, without these two items you cannot operate your Mazda after installing an upgraded turbo.  You will need your Mazdaspeed tuned, and your tuner is going to say the same thing.

Thatโ€™s it, thatโ€™s all you need to run the CorkSport Mazdaspeed turbo safely. With this proper foundation, you can put yourself in a position for efficiency, or more power.

Mazdaspeed turbo upgarde and installed on a Mazdaspeed 3

Now the question is do you want to make it go fast and harness the power that this turbo is built for? Keep reading and weโ€™ll provide some other awesome upgrades that are the next step once you have your turbo installed and running.  Oh, and if you are looking for a proven path to make 400WHP, check out our Chasing 400 WHP Blog here!

2013 Mazdaspeed 3 Engine bay with TMIC, SRI and Turbo inlet pipe, CST4

CorkSport Upgraded 3.5โ€ Intake

The CorkSport turbo is rated for up to 450WHP with the right set up. Unless you are going for the MOON and shooting for over 700WHP a 3.5โ€ intake will be more than sufficient for this turbo. Giving you some extra airflow to increase your power range, and harness what your Mazdaspeed3 is capable of. Note: Will require additional tuning!

Mazdaspeed 3 Turbo Back Exhaust

CorkSport Mazdaspeed Downpipe

Doesnโ€™t matter if you go with a high-flow catalyst or opt-in for one without, the choice is yours. However, if you want to utilize its flow you are going to have to upgrade to a bigger diameter. Our 80mm one does really well, plus it sounds GREAT.  Note: Will require additional tuning!

The CorkSport Cat Back Exhaust System gives your new 2016 Miata the power it needs without the annoying drone.

CorkSport Cat-Back Exhaust

Itโ€™s no secret that car engines are just big air pumps, the faster you can shove air into the engine and how fast you can expel it efficiently is what it takes to make more power. No need to run the stock 63.5mm exhaust when you can run our 80mm (like to wake up the neighbors every morning, go with our non-resonated, you canโ€™t beat the cold start)

Top Mount intercooler or the Mazdaspeed

CorkSport Top Mount Intercooler

If your power goal is 450whp or less you can get away with just upgrading your TMIC and be on your way and they look great in your engine bay.  Note: Will require additional tuning!

If you have the 2nd gen you can really utilize that hood scoop from the factory.  Not only that but you can even see a noticeable performance gain with our larger hood scoop and a TMIC set up.

When it comes to your Mazdaspeed we know you want to create safe power and harness the true potential of your ride. Be sure to build upon the proper foundation and head in the right direction for your build. Our techs are available for any questions you have and are ready to assist with planning your Mazdaspeed build path! Any questions – give us a call directly – (360)260-2675, email to sa***@co*******.com or leave a comment and weโ€™ll get back to you!

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Intake Valve Cleaning โ€“ A Dirty Job Made Easy

Introducing the CorkSport Intake Valve Cleaning Kit. While designed specifically for the DISI MZR engine found in the Mazdaspeed 3, 6, and Mazda CX-7 turbo. Our kit is versatile enough to be used in a variety of direct injected (DI) applications and alleviates many of the pain points associated with cleaning your intake valves. For an explanation on why DI engines need their valves cleaned, check out our blog on cleaning Mazdaspeed intake valves. Read on as the CorkSport Valve Cleaning Kit could make your next maintenance job much easier.

Despite its interesting appearance the CorkSport Valve Cleaning tool was carefully designed for ease of use. Starting at the large end, the cone shape was selected to accommodate a wide variety of vacuum hose sizes (1.50-2.5- inch OD) – it even works with the oblong-shaped hose we have in the CS shop! A clamp is included to keep the tool secure on the vacuum. Due to the slightly flexible nature of multi-layer silicone, clamping the hose creates a seal useful to get great suction from the vacuum.

To provide the best fit for both the large and small intake ports of the DISI MZR, the opposite end of the valve cleaning tool also is flared. When in use, this flare compresses slightly, making for another great seal. This keeps the cleaning chemicals, media, and any carbon deposits from getting all over you and your engine bay.

Last but not least is the small diameter offshoot on the side of the CorkSport Intake Valve Cleaning Tool. This is the port for a media blaster that helps make quick work of dirty valves. It is positioned for easy use, where one hand holds the CS valve cleaning tool while the other operates the media blaster. An abrasion resistant hose is included to fit on the end of your media blaster and travel down into your intake ports for direct blasting. Unlike doing this without the tool, you do not have to permanently modify your vacuum just to do valve maintenance.

There you have it, folks, quite possibly the weirdest looking CS product ever created but itโ€™s quite useful! ย Check out the listing for more details and to see the CorkSport Intake Valve Cleaning Tool in use.

Understanding Intake Systems for Mazdas

The CorkSport Cold Air Box pairs perfectly with the CorkSport Short Ram Intake.

When it comes to the breathability of your Mazda, a short ram intake is the best place to start. The benefits are immediate, the installation is quite simple and itโ€™s genuinely the best first step to getting some power and fun out of your Mazda or Mazdaspeed.

Bringing more air into the intake chamber, the intake system allows you to increase horsepower and torque for your Mazdaspeed. Each is designed to maintain optimal flow and generate ideal performance for your Mazda, with exacting tolerances and using the latest in computer-aided manufacturing techniques to bring you the highest quality and best-performing part for your money. You can expect to gain up to 30+ HP from this simple-to-install short ram intakeย system.

The CorkSport Cold Air Box pairs perfectly with the CorkSport Short Ram Intake.

Types of Air Intake Systems

Short ram air intakes suck in large amounts of heated air within the engine to help in efficient combustion. These are short and wide pipes because it uses a shorter pipe than the cold air intake, it only has access to warm air near the engine. To make up for this, it sucks in more air than cold air intakes.

Cold air intakes are a type of ram air intake system that works by drawing in cool air from outside and into the Mazda’s engine. This type of intake often has minimal bends and has a long duct with access to cool air. With cooler air coursing through the engine, combustion requires less heat and fuel.

Mazdaspeed Air Intake

Why Replace Your Mazdaspeed or Mazda Air Intake System

More often than not, car enthusiasts and expert mechanics recommend that you purchase an air intake as soon as possible. Even vehicles of the latest make and models benefit from an aftermarket air intake system. Below are five of the reasons why an air intake system can improve your Mazda engine’s performance.

Get your 2014 Mazda 3 the cold air it needs with the CorkSport cold air box that goes perfectly with the CorkSport SRI.
Mazda 3 Short Ram Intake

Keep in mind, when an intake is paired with a cold air box or battery box, you create a great look for your engine bay and increase your overall Mazda performance. Also, when paired with fuel pump internals, youโ€™ll be able to increase the efficiency, power and set yourself up for future modifications as well!

Why replace your intake system?

1. Increased Acceleration


With an upgraded intake, your Mazda can experience increased horsepower. Upgraded intakes can also increase your engine’s responsiveness when speedy acceleration is required. Because there is more air available and ready for combustion with aftermarket air intakes, your engine reaches the desired speed faster compared to the stock intake that comes with your Mazda. Those who enjoy racing, autocross, or drag strips with their Mazda or who if you just like quick acceleration as soon as the traffic light turns green, an aftermarket air intake can help you enjoy your get up and go a bit more.

2. Greater Fuel Economy


Engines rely on a mixture of fuel and air to create an explosion that powers your Mazdaspeed. When there is not enough air pumping through the engine, your Mazda consumes more gas to compensate for the lack of oxygen. Stock intakes that come with your Mazda are designed to be quiet instead of fuel efficient, and as a result, they tend to use more gasoline. Pumping in more air via an upgraded intake can reduce gas consumption and translate to savings on fuel expenses. For those who are concerned about fuel efficiency…we should note here: that the enhanced sound may cause you to have a heavier foot and decrease your fuel efficiency in exchange for spirited driving.

3. More Effective Filters


The stock air intakes that come with your Mazda normally have disposable paper filters to catch debris. While these filters do their job in trapping particles that may potentially wreak havoc on your engine, the filters eventually require replacement (often a great upsell item for your local technicians). Aftermarket intakes, on the other hand, are equipped with filters that typically have to be cleaned every 20,000 to 50,000 miles (just some soapy water and let it dry completely before reinstallation). This not only saves money but it also provides a more effective filtration method that not only keeps debris out but also lets a larger qty of air inside.

4. Enhanced Sound


Those who like the aggressive sound of a roaring Mazdaspeed engine should enjoy our upgraded intakes the most. Because more air enters through the intake to the engine, it produces a sound that our Mazda enthusiasts find thrilling.


5. Better Overall Performance


With the simple installation of an upgraded intake, you can increase the overall performance of your Mazda. Whether you decide to go for the short ram intake or the cold air intake, you increase your Mazda’s efficiency, speed, power, and sound.

Looking for an intake system or upgraded intake components to fit your Model?

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