You may remember that we had to get a new shop testing vehicle after our last Mazdaspeed 3’s untimely demise See here; but what you may not know is how much time and effort was put into that car. Building a rolling showcase isn’t easy, cheap or quick. We were sad to see it go but now have a brand new canvas to start over on.
With our new speed we decided to go white, with that pearly white paint job we wanted to go towards a “panda” style going forward, mixing white and black parts in our build. We have started with a few small black and white things (intake, BOV, etc.). We’re really looking for input from you to really make this car unforgettable.
We’re looking at every detail to try to make an overall car that hasn’t been seen before that goes deeper than just bolting things on. We want to try new things, make combinations that have never been seen before and really try to make something that you would want if you never had to make a compromise.
Check us out on Facebook and let us know what you think we should add to this car to make it really unique.
Help Build the Mazdaspeed of Your Dreams July 16th, 2013CorkSport
Help limit your CorkSport Short Ram Intake from sucking in hot air with the CorkSport SkyActiv Cold Air Box for the 2010+ Mazda 3 Skyactiv. By coupling your Short Ram Intake with a cold air box, you will see the benefits of the intake system without the pressure drops inherent to longer tube intakes. Using the CorkSport Cold Air Box helps block hot air from the engine, while keeping open the access to cool air from the inner fender. Our Cold Air Box has undergone extensive testing at various ambient air conditions to verify performance in all conditions.
Made of durable and lightweight FRP construction the CorkSport Mazda 3 SkyActiv Air box is strong and lightweight, but looks great under your hood. Simple instructions make the CorkSport SkyActiv Air box easy to be installed by anyone with a CorkSport Short Ram Intake. With the SkyActiv Airbox your intake will stay cooler, which means your engine will run better. Whether you sit in a lot of traffic, live in a hot climate, or simply have noticed too much heat-soak, the SkyActiv Air box is the solution to loss of power due to high under hood temperatures.
Welcome back to the Fuel Pump Comparison, Part 3. If you haven’t been following along with us feel free to read Part 1 and Part 2.
Now that we have a good understanding of the basics for these high pressure fuel pumps we can start to really dig deeper into the specifications. One of the items we were really curious about were the materials used in the construction of these pumps. We decided to have the hardness tested and ascertain the materials used. The factory pump internals do not use any coating, the hardness test showed us that the internals went through a hardening process as the core was significantly softer than the surface. Because of these hardness requirements, many other aftermarket internals use a coating of some sort to decrease friction between the piston and the sleeve. As for what the stock internals are made from, we answered that. Except for the hardening procedure, according to their chemical breakdown, they match a common die steel, so nothing too fancy.
We now understand why it is so common to hear that the factory pumps are machined to such tight tolerances. At high rates of speed and pressure with a hardened material, you could easily have failures if tolerances were not correct.
When testing the fuel pumps on the dyno, we chose a Mazdaspeed 3 (2nd gen) with bolt-ons and a stock turbo. The factory boost levels we maintained 1700psi all the way to redline with no issues. As soon as we raised the boost slightly, the fuel pump began to drop pressure. With a Cobb AccessPort and a stage 2 reflash, the pressure of the pump would drop under 1000psi by 5000rpms. If you’re going to turn up the boost or run a reflash, an upgraded fuel pump is a must.
Our dyno is able to adjust load, so in our testing we chose a load value typical of 4th gear on the street and tested all pumps with the same load on the same day, only hours apart from each other. All the pumps tested performed very similar for power but the stock pump actually ran a lower air/fuel ratio. This is because all of the pumps were tested with no tune. When we changed to the Cobb stage 2 map, the power levels increased but we could not complete the test with the stock pump as it just could not keep up with the demand. With the stage 2 tune, we found the air/fuel ratios to be very, very rich and had a very real possibility for causing high load misfires. We actually experienced that several times on colder days. With no tune, this does not happen but the car did still run very rich in boost with all the aftermarket fuel pumps. With a custom tune though, there should be no difference between the pumps and you can raise the boost without worry of running low on pressure.
Now that you have read Part 3, see Part 1 and Part 2.
Stay tuned for part 4 in our fuel pump comparison series, things are about to really heat up!!!
Fuel Pump Comparison Part 3 February 28th, 2018CorkSport
When you look at the blow off valves (BOV) and bypass valves (BPV) on the market today you see many examples of the same thing with little to no innovations. For those of you that aren’t aware, BOV’s and BPV’s are valves that vent pressurized air in the tract between the turbo and the throttle body. This prevents the turbo from suddenly stopping or slowing as those can cause unwanted bearing wear on the turbo. A BOV vents this pressurized air into the atmosphere (into the engine bay). A BPV vents that air back into the intake just after the mass air flow (MAF) sensor. Venting back into the intake allows the ECU to correctly meter that air that it has already accounted for. Many times when venting to atmosphere you can get a momentarily rich condition because the ratios are off.
We were talking about innovation though, the last great innovation in valve technology for turbos was probably years ago with pull type valves like the SSQV from HKS. Many years have passed since then and not much has changed, outside of the few valves that partially vent to atmosphere and route the rest back to the intake tract. Typically now you just see one copy after another of someone else’s idea. SURE, it can be hard to innovate in the blow off valve market but we were convinced there was something exciting we could do.
We speak often about your ideas sparking our innovative minds, this project was started by just one of those customer suggestions. We started with a customer submission of using wave springs that led us to design a new valve design to reduce the size and weight of the moving parts.
Key Features of the upcoming patent pending CorkSport Blow Off Valve:
Reduction of spring height
With the use of a wave spring we are able to reduce the spring height by 50%. The traditional spring sits at 40mm and the CS wave spring sits at a 20mm height. These springs both provide the same force and will move the same distance before experiencing coil-bind.
Reduction of piston size
Because the spring is 50% smaller we are able to reduce the piston and still maintain the same amount of movement. As you can see, just changing to the wave spring we were able to decrease the piston by 33%!!!
What does that all mean?
The reduction in mass is all well and good, but just being smaller isn’t the only benefit (even though that is pretty cool). With the force (F) being the same and the mass (m) decreasing by 33% we can see how the mass relates to acceleration (a) in the formula F=ma. Rearranged, this becomes a=F/m. This means we have accelerated the actual speed of the valve, which means the valve is able to react much faster than a larger valve with a traditional spring (33% faster!) Because the blow off valve is a safety feature to protect the turbo from premature wear, this increase in acceleration can help increase the longevity of the turbo and the system as a whole.
What does all this innovation look like?
With the reduction in the size of these key parts, we can reduce the body size. This can be especially helpful in situations with airboxes, custom turbo and intercooler kits or even in universal situations where space is at a premium. Below you can see a comparison of similar BOV’s, the spring chamber on our design is significantly smaller but the function is not lost; in fact, we improved it!
To maximize flow, we pushed the piston area out to ensure a larger venting area, this reduces the time it takes to vent the air and allows larger turbos to vent more efficiently. As a blow off valve, this certainly pushes the envelope, we think we can find even more applications for this kind of innovation. We are very proud to be able to offer things for the Mazda market we helped create and will continue to engineer parts that push the scene for you.
Inside the upcoming CorkSport Blow Off Valve July 8th, 2013CorkSport
After months of testing and making sure it couldn’t be broken, we are finally ready to release the CorkSport Mazdaspeed 6 Rear Differential Mount!
With all the testing we have done on this part, we know it is the strongest available on the market, but don’t take our word for it. To quote Dennis Gardener, who tested this part on his Mazdaspeed 6 equipped with a GT35 turbo: “I threw everything I had at this mount and my engine blew up long before I could even make a dent in it.”
Machined from lightweight billet aluminum and anodized black, the Rear Differential Mount from CorkSport is durable and built to last. Priced below the cost of replacing the stock mount, the CorkSport Rear Differential Mount is ideal for all Mazdaspeed 6 owners, especially when you start turning up the boost!
The CorkSport Shift Knob provides smooth throwing shifts, and clean style to complement your Mazda.
Weighing in at 320 grams, the CorkSport Shift Knob provides easy weighted throws that improve response and feel. Shift smoother and let gravity help with extra weight in the palm of your hand. With soft leather, and baseball style embroidery the CorkSport shift knob will complement your interior and feel good in your hand. Works great with your Mazda or Mazdaspeed.
