We’ve discussed before how the CorkSport adjustable shocks and struts are a great compliment to the CorkSport lowering springs. Now we have included them together in a package with our camber plates to give a huge handling and adjustability upgrade to any Gen3.
In addition, this package comes assembled with new OE dust boots, pivot bearings, and bump stops that are even cut to proper length to match the lower ride height. Since this package comes assembled with new parts, installing it is a snap. No spring compressors needed at any point. Check out the image below to see exactly what you get in every box.
Whether you are looking to replace some worn out OE components and get a style bonus, or are looking for some and handling and adjustability for your racecar, the CorkSport Adjustable Shock/Strut Assembled Package can help you reach your goal.
Welcome to the Gen3 Mazda 3 Suspension Package November 29th, 2018CorkSport
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 “10psi” spring in your wastegate. For more information on boost control and the different EBCS setups, checkout Barett’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 “thirds” 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 (0.012”) 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 bestin boost control for your Mazdaspeed, be sure to pick up a CorkSport EBCS.
An Inside Look at the CorkSport EBCS November 27th, 2018CorkSport
We all know the saying the 3rd time is the charm and this year’s SCCA National Championship Runoffs was no exception to the rule. The past 2 runoffs I have not made it to the finish line. In 2016 at Mid-O I was hit on the first lap and punctured my left front tire. At Indy, I retired as we developed a fault in the ECU from some beta software we were running and the car dropped into limp mode and I wasn’t able to maintain full throttle.
We have been working on the brakes for the past 3 years and during the season it limited us from running the car as much as we like. We have also been chasing a fault/error with the ECU/control system of the car. We were still able to get the car enough starts and race finishes to get qualified for the runoffs in Sonoma. Granted the car was not happy at most of those races and it was a struggle to get to the finish.
2 weeks before the runoffs we sorted out the ECU problem and were confident enough in the car to race it. The backup plan was to race my Spec Miata if we couldn’t get the Mazda 3fixed as I ran it this past season as well and had enough starts/races.
With the Runoffs at Sonoma, it was within 1-day driving distance unlike the past 3 runoffs at Daytona, Mid Ohio, and Indy so I got to try out the new (to me) truck and trailer.
I had raced at Sonoma one time prior, so the track wasn’t totally unknown like Mid-O and Indy, which all I had was simulator time so I was able to get up to speed quickly on a test day and find out what I needed to work on for chassis setup and driving. The driving was easy to adjust, look at the data, see where the driver was sucking, and had to man up to keep a foot to the floor in some sketchy corners.
The car, on the other hand, had what we call “a good problem to have”, too much power. We have been running a torsion-style differential in the car which works pretty well in a straight line and relatively flat tracks. Sonoma is not a flat track that unloads the car 3-4 times per lap. With the Mazda 3 and the amount of torque, it makes means I was unloading the tire enough for it to spin the inside tire. Most people think what is the big deal with a little tire wheel spin? It is a problem when you enter turn 10 at Sonoma at 97MPH and you start lighting off your right front tire. Look at the picture below and you can see that the front inside tires are barely on the ground and the rear isn’t. The speedometer would jump around and you could see the right front wheel speed turning at 5-10 mph more in the data.
We tried several suspension changes and driving style changes to make the best of it but in the end, we were way off the pace by 2-3 seconds of the rear-wheel drive cars in the class.
The good part about not being at the front of the field, there was zero stress when race day came.
Like any race there was a fun challenge, we would be heading into turn 2 blind as the race was at 4 pm in the afternoon and the sun would be shining directly down the hill. Since I wanted to see the end of the race I was a little cautious at the start and Ali in the other Mazda 3 got around me at the start.
We fought it out for 8 laps and he went into turn 6 too hot and I was able to get under him and pass him on the inside.
After a few laps I put a 4-5 second lead on Ali I was basically in no man’s land, slower than the front guys and faster than the back half of the field so I spent my time working on tire management (it is easy to overheat your left front tire at Sonoma) and made it to the end of the race.
My official finishing place was 10th but after some adventures in tech, I was moved to 9th in the final results. This isn’t where I wanted to be by any means but the 3rd time was the charm and I made it to the end of the race.
In this blog, we are going to SHOW a demonstration of exhaust gas scavenging. Instead of a lengthy blog full of text, we’ve opted to create a video that demonstrates the effects of exhaust gas scavenging for both good and bad designs.
We will be comparing the prototype CorkSport performance exhaust manifold, developed for the Mazdaspeed 3 and 6, to the OE exhaust manifold.
Exhaust gas scavenging within a manifold is the process of one cylinder runner, pulling (aka scavenging), the exhaust gas from an adjacent cylinder in a continual cycle. Now enough talk, to see an awesome example and an awful example of exhaust gas scavenging check out the video below. BONUS! Not only do you get to see what optimal scavenging looks like, but this is also the first sneak peek of the CorkSport Performance Exhaust Manifold…
We hope you found this as interesting as we did! Stay tuned as we continue developing the CorkSport Performance Exhaust Manifold for the Mazdaspeed platform.
That’s right, it’s time to start making more power on the SkyActiv 2.5T. We are proud to introduce the CorkSport Power Series Short Ram Intake for 2018+ Mazda 6 equipped with the 2.5 Turbo Engine and 2016+ Mazda CX-9. We replaced the restrictive factory airbox with a free-flowing intake system that was designed to help your turbo breathe significantly better. The SRI offers better performance, sound, and looks in an easy-to-install package. Read on for full details, and be sure not to miss the sound clips in the video below!
This CorkSport Short Ram Intake was designed specifically to get the best the 2018+ Mazda 6 2.5T and 2016+ Mazda CX9 have to offer. From the precision machined MAF housing to the high-flowing filter, each component in the CS intake system offers an improvement over the stock counterpart while retaining great fit and finish. All mounting hardware, brackets, and clamps are included to make your installation quick and painless.
Starting at the OEM turbo inlet pipe, the factory airbox utilizes a ribbed and flexible rubber elbow. While working well enough, the ribs induce significant turbulence into the intake tract.The CorkSport short ram intake replaces this elbow with a smooth-flowing silicone elbow. In addition, the silicone is 4-ply reinforced with nylon to eliminate any chance for volume reduction under wide open throttle.
Next comes the MAF sensor housing. The MAF sensor essentially reads the volume of air that is entering the engine so the ECU can adjust tuning to suit. Since the OEM unit does a good job here, it was imperative that the CS MAF housing matches to ensure no check engine lights or tuning issues. The CorkSport MAF housing is precision machined from 6061-T6 billet aluminum to match the OEM housing to ensure no CELs, no tuning issues, and great flow.
Finally, the CS SRI uses a performance AEM dry-flow filter. A high-quality filter like this is long-lasting, reliable, and can be washed and reused. It has superior filtration to the OEM filter, while also allowing more airflow into the intake tract.
Now for what you’re all interested in: power gains. By removing the restrictive OEM airbox and turbulent intake elbow, we were able to pick up 5-16whp and 7-23wtq through the rpm range. This power bump comes with no tuning changes and with identical testing conditions. Check out the dyno graph below to see for yourself! Note: the variance in low RPM (2800 and lower) is due to difficulties associated with dyno testing an automatic vehicle.
Freeing up a few extra ponies is great but what you will really notice is the added engine and turbocharger noise. That restrictive airbox does a little bit too good of a job at dampening out all the fun sounds that come with a turbo. We were honestly a little surprised by the flutters, whooshes, and psshh noises that come with the CorkSport SRI. You also gain a little extra engine induction noise under hard acceleration. The extra noise is enough to be fun when you want it but not annoying or distracting when you don’t. Watch the video below to see what it sounds like.
Watch the Product video for the Short Ram Intake
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As with most CorkSport products, this SRI kit comes with all the clamps, hardware, and even a support bracket for the MAF housing to ensure you have an easy and quick install.
The CorkSport SRI for 2018+ MZ6 2.5T & 2016+ CX-9 is a great modification whether it’s your first or just the latest on a long list of builds. It provides a noticeable power gain, adds some extra fun to your ride, and will support future mods down the road. Pick up yours today!
Be sure to contact us with any questions you may have, we will be happy to help!
