Guess Who’s Back

We are proud to announce a old product that we have redesigned.  Introducing the V2 CorkSport Coilovers for 2004-2013 Mazda 3 and Mazdaspeed 3.  

We’ve taken the same basic designed and revised and refined it with small changes to fitment and big changes to spring rates and damping rates.

Complete Mazdaspeed 3 Coilover Suspension

For spring rates we took an approach that seems to differ with most street oriented kits on the market today.  We wanted to develop coilovers that were both enjoyable to drive on the street in a daily driven car, but could also perform on the track in more performance oriented settings.   With these goals we focus on the ride feedback, understeer/oversteer balance, and suspension frequency balance.  

The result; linear rate 7K front springs and 8.5K rear springs. This provided us with a ride quality that was comfortable, but sport focused and with the right balance of understeer vs oversteer, with a car that is more oversteer biased.  The frequency of the suspension was also taken into consideration with a higher rear frequency than front to improve driver feedback and comfort. 

Mazda 3 coilover suspension

Like most coilovers, ride height adjustability is essential to setting up you Mazdaspeed 3 or Mazda 3 for your goals.  The redesigned CS coilovers offer 2 inches of height adjustability from approximately 0.75 inches to 2.75 inches lower than stock springs.  This range of ride height allows you to have a conservative track-oriented setup or a slammed show setup depending on your goals. 

With ride height, you can also adjust the front camber setup with the CS Coilovers include front camber plate, this kit comes to your door ready to install.  

Street Performance 1st Gen Speed3 Coilovers

Lastly, and also somewhat unique to CS, is the design of the front coilovers.  Instead of a more conventional and cost effective design, we’ve utilized an inverted damper design for improve performance.  By inverting the front damper/shock, we’ve both reduce the unsprung weight of the front suspension and increased the rigidity.  Both of these result in increased driver feedback and improved performance.  

2nd Gen Mazdaspeed 3 Suspension

If you been considering lowering springs or coilovers for you Mazda 3 or Mazdaspeed 3 then give CS a good look. Thanks for taking the time to checkout CS, stay connected on the blog, newsletter and social media channels for upcoming performance parts for your Mazda.  

-Barett @ CS

Easy and Accurate Boost Readings: The CorkSport 4.5Bar MAP Sensor

Mazdaspeed 3 4.5 bar MAP sensor

We are proud to introduce the release of a new product: the CorkSport 4.5Bar MAP Sensor for Mazdaspeed 3, Mazdaspeed 6, and Mazda CX-7 Turbo. We’ve had the CS 3.5 Bar MAP Sensor for a while now as it’s a necessity when targeting over 21psi, however, while maxing out the CST6, we found the 35psi ceiling of the 3.5Bar sensor just wasn’t enough. Enter the CS 4.5Bar MAP Sensor!

Mazdaspeed 3 4.5 bar MAP sensor

Before I get into explaining what makes this sensor tick, lets quickly go over what exactly a MAP sensor does on your Mazdaspeed. Manifold absolute pressure (MAP) sensors in a nutshell just read the pressure present in the intake manifold of your car. During normal driving conditions, the sensor is typically reading vacuum (or negative pressure) as the engine sucks in air. While in boost, the sensor reads the positive pressure (boost pressure) produced by your turbocharger. In both situations, this pressure reading is being sent to the ECU so the ECU understands exactly what the engine is doing.

The OEM sensor is a 2.5Bar unit, meaning it can do 1Bar of vacuum (negative pressure) leaving you only 1.5Bar (~21psi) before the sensor runs out of accuracy. Both the CS MAP Sensors allow you to accurately read boost levels higher than the stock sensor, so your tuner can target a higher boost pressure for more power, provided you have the right supporting mods. The sensors themselves do not increase your boost pressure, they simply enable your tuner to safely do so.

Mazdaspeed 6 plug in 4.5 bar MAP sensor

Enough learning, let’s get into the 4.5Bar Sensor! The CorkSport 4.5Bar MAP Sensor can read a maximum boost pressure of ~48psi before it starts running out of accuracy. Having a huge potential boost pressure means nothing without a fast responding sensor, so we designed the CS 4.5Bar MAP Sensor to have near instantaneous response of only 2 milliseconds. This means if you have the build and turbocharger to do so, this sensor is ready for just about anything you want to throw at it.

A true plug in MAP sensor for your Mazdaspeed no adapter required

The CorkSport 4.5Bar MAP sensor uses a custom injection molded body that mimics the OEM sensor. This makes it a direct install into the OEM location and a direct plug into the OEM wiring harness. No wiring or adapter harness needed. This results in a clean install that takes as little as 15-30 minutes! 

Everything needed for installation is included with the CS 4.5Bar MAP sensor. A new mounting bolt is supplied to ensure everything stays put, while a fresh O-ring is attached to the sensor to provide a good seal in your intake manifold. To top it off, calibrating for the sensor is easy as the calibration for use with Cobb Accessport is laser etched right on the body of the sensor.

Speed3 3 bar MAP sensor

Front Strut Tower Brace for the 4th Generation Mazda 6

Bolt in STB for the Mazda 6

We’ve heard you asking, we’ve even seen you trying to fit our strut tower brace for the 2014-2018 Mazda 3 onto your 6. We are proud to announce the challenge is over.  We’ve created a new design specifically for the 4th generation Mazda 6 and its available now!

2018-up-Mazda-6-STB

You may have a goal of improved driving experience or you just want a visual improvement to the engine bay.  We are offering both to you. 

The polished aluminum strut bar and powdercoated steel brackets look great under the hood of the Mazda 6 and the added chassis stiffness provides improved handling and driver feedback. 

Bolt in STB for the Mazda 6

Install is a breeze with color step-by-step instructions and included hardware.  If you’re looking to get even more out of your Mazda 6 in those curvy back roads then we suggest a rear swaybar and sport springs to go along with the CorkSport Front Strut Tower Bar. 

This package will really wake up the chassis of the Mazda 6 providing you with a sports car feel from your big sedan. 

2018 and up Mazda 6 lowering springs

Don’t hesitate! Gets your today!

The Solution to all those Boost & Vacuum Hoses – CorkSport Boost/Vacuum Block

Do you ever open the hood to you Mazda and cringe at all the boost and vacuum hoses – You know, the string of hoses and T-fittings winding in every direction?  Here at CorkSport, we’ve had this same feeling and decided to do something about it. 

CNC Vacuum Manifold

Introducing the Boost/Vacuum Block and Fitting Kit…the simple and effective solution for your boost and vacuum accessories.

Mazdaspeed 3 Vacuum Block

This simple part for your Mazda allows you to consolidate your various boost/vacuum hoses to one single source. You can finally rid your engine bay of the numerous T-fittings that plague that single hose that connects your intake manifold and BPV.

All the ports needed for your Speed 3 install

A central boost and vacuum source is plumbed to the block and then distributed to six standard ports with 1/8-27 NPT threads.  If you have a plan and setup you are going for then opt for the Block and Plug Kit.

Easy Mazdaspeed 6 installation

If you are unsure about what you need now or in the future,  then the complete block and fitting kit is your best option.

Optional fittings for the easy installation

Either way you are sure to make a huge visual improvement to your engine bay.  A little effort now will go a long way later with this billet aluminum and anodized boost/vacuum block.

Check it out here and get your today…your Mazda will thank you.

-CorkSport

Mazdaspeed EWGs Made Easy!

We’ve talked a lot about external wastegates with our recent CST6 development but today we are happy to announce the standalone CorkSport External Wastegate Housings for the CST4 and CST5. Available right now as an update for your existing IWG CST4 or CST5, the CS EWG housings make it easy to get the best in boost control for your Mazdaspeed 3, Mazdaspeed 6, or Mazda CX-7 Turbo.

Bolton upgrade to go external wastegate with your Mazdaspeed

While the CST6 will only come with an EWG housing, the external wastegate (EWG for short) is a new concept for the CST4 and CST5. Both of these turbos originally hit the market with an internal wastegate (IWG) only option that has a small flapper valve on the inside of the turbine housing to let off excess exhaust gases. Instead, the CorkSport EWG housings use an offshoot from the turbine scroll that has a v-band flange on the end. This flange allows for the fitment of an external wastegate for improved boost control. To run an EWG on an original CST4 or CST5 previously, you needed an EWG capable exhaust manifold and some sort of block off for the IWG port.


Mazdaspeed 3 turbo internal and external wastegate housings

The new CS EWG housings make running an EWG on your Mazdaspeed3 easier than ever. Each housing comes with the elbow and clamp needed for great fitment. We even offer a dump tube/screamer pipe that works for both MS3 and MS6 as an add-on option. If you pick up the screamer pipe to go with your housing, all you need to supply is the EWG itself. 

Mazdaspeed external wastegate installation kit includes everything but the Tial wastegate

We strongly recommend a Tial MV-R 44mm wastegate as all design work and testing used this specific wastegate. Other wastegates may require modification for use. The 44mm size is a great fit for the Mazdaspeed engines, whether you are running an upgraded turbo on the stock block or fully built one that you intend to push to the limits.


Tial wastegates are a proven turbo commodity for the Mazdaspeed 3

So why would you want an EWG? For starters, EWGs truly offer the best boost control setup for any turbocharged car. Because the wastegate is separate from the turbocharger itself, it is easier to place for optimum boost control, plus, the design of the actuator itself can be optimized. As a result you get a wastegate that hits boost targets more accurately and responds quicker to changes in boost. This means no more boost spikes right when the boost hits (a common problem with poor quality IWG setups), and a near-flat boost curve. The isolated actuator also makes for faster and easier spring changes should you need to service or change your wastegate preload. For more info on the design behind the CS EWG housing, check out the full blog HERE.

A direct flow path for the exhaust gas on the Mazdaspeed 3

One of the best parts of EWG over IWG is the sounds that come with a screamer pipe! While only intended for off-road use, a screamer pipe dumps the exhaust from the EWG directly to the air. This allows for a fantastic noise during a WOT pull, that sounds truly unique. It’s not all just noise though, by venting the EWG to the atmosphere instead of venting the IWG in your downpipe, you are decreasing exhaust turbulence right after the turbine wheel, reducing backpressure. On very high horsepower setups, this often generates some extra power as the turbine housing can be used more efficiently. Check out the product video below for some great EWG sounds from Barett’s MS3.

There’s one final benefit of the CS EWG housings: housing design itself. Without having the IWG in the way to worry about, we were able to do some optimizing on the scroll and A/R. For CST4 owners, this means an increase in A/R from 0.66 to 0.82. Typically an A/R change like this will cause a slight decrease in spool time but an increase in max power potential. CST5 owners have this 0.82 A/R even with the IWG setup but there’s another benefit: greater swallowing capacity. This refers to the amount of volume in the turbine scroll. By increasing the swallowing capacity the turbine can ingest air more efficiently at the peak, which is especially important if you have an upgraded exhaust manifold or high flowing head. After all, an engine is an air pump – what good is shoving more air in if you can’t get it out?

Easy bolt up external wastegate upgrade for your Mazdaspeed 3

If you’re in the market for a change on your Mazdaspeed, check out the CorkSport EWG housings for the CST4 and CST5 turbochargers. Better boost control, a more efficient housing, and best of all, a great new sound. Be sure to check out the listing for even more images and don’t be shy to ask questions we’ll be happy to help!