Top 7 Mazda Questions with Our Answers

Corksport Q&A

You had questions, we had answers. Here are the top 7 questions we found on Facebook, Instagram, and Twitter:

Question: What would be involved/required for CS to develop injectors for the MS3/6?

  • Questioner: Vincent Pham
  • Answer: Fuel injectors, especially direct injection, are complicated high-precision electromechanical devices. A project like this is outside the โ€œnormal rangeโ€ for a small company like CorkSport; therefore, we would have to team up with an injector manufacturer like Bosch to tackle this project. We would also need lots of money. Even with these huge hurdles to overcome, we are investigating the project.

Question: Whatโ€™s the most power you have seen a SkyActiv-G engine put down?Screen Shot 2015-01-21 at 12.34.32 PM

  • Questioner: Shane Foster
  • Answer: I havenโ€™t heard of any high-power SkyActiv-G, and we probably wonโ€™t know for some time, unfortunately. Currently, the 2.5L SkyActiv-G engine produces 165hp at the crank, which is nothing to brag about in a market full of 300hp turbo 4-cylinders and 600hp V8s. Although the SkyActiv engines do have something to brag about, they are some of the most technologically advanced engines on the market. With a 14:1 compression ratio, direct injection, and variable valve timing thatโ€™s designed to run on 87 octane fuel, there is huge potential for power. CorkSport has an eye on this potential. For more in-depth information, checkย out the link below.

Question: Best way to clean carbon on the direct injected cars without pulling manifold and media blasting them?

  • Questioner: Alex Gonzalez
  • Answer: From my research and personal knowledge, everybody has their own method for better or for worse. One method is to use a ยฝโ€ diameter hose attached to a shop vac and scrap away, but I donโ€™t recommend that. Another method is to use the PCV port on the intake manifold to slowly suck Seafoam into the intake runners, but again I canโ€™t say I recommend it. You canโ€™t control how much or which ports it goes through and the idea of running something other than gasoline through the combustion chamber bothers me. Ultimately, you should remove the intake manifold and then clean it with a heavy-duty foaming engine cleaner. This will also give you a chance to inspect the intake valve and I do recommend purchasing an EGR delete kit.

Question: What oil should I use in my speed?

  • Questioner: Alex Duran
  • Answer: Alex, you really want to stir that pot? O-well, letโ€™s give it a shot. I personally run Mobil-1 Full Synthetic and half a quart of Lucas Oil Stabilizer for 3000 miles. Iโ€™m not going to recommend a specific oil, but I will say this. You should run a full synthetic oil and quality oil filter. The oil should be SAE certified and have the manufacturerโ€™s suggested viscosity or be slightly thicker. I say slightly thicker because I have found good results when doing so with higher-than-factory horsepower setups and in severely worn engines.

Question: Think you guys will ever offer full performance engines and components. I.E. big valve head, billet cranks, high comp pistons, or a 2.5 bored to 2.7 with all that plus cams?

  • Questioner: Colt Krahwinkel
  • Answer: Iโ€™m going to assume this question is directed to all recent Mazda engines for the sake of variety. Unfortunately, we have no plans for the naturally aspirated SkyActiv-G engines other than bolt-ons; there just isnโ€™t a big enough market for that investment. As for the DISI MZR engine, we have produced camshafts and plan to re-release those in the future. Other bolt onโ€™s are either already done or planned, maybe even a turbo, but we donโ€™t plan to get into the engine internals.

Question: How well might breathing mods affect power on the Mazda 2? Say CorkSport SRI, Headers, and CorkSport exhaust?axl-6-276-blue_installed

  • Questioner: Mike Wildt
  • Answer: With the combination of those, the highest gain I would expect on a Mazda 2 is 20hp. The exhaust manifold would show the biggest gains, followed by the SRI. The exhaust system will give marginal gains, but a little grumble is always nice.

Question: Why do you highly recommend resonated over straight pipe? (Referring to the Gen2 Mazdaspeed 3).

  • Questioner: Phil Young
  • Answer: This can be a very biased opinion and is probably the most highly debated subject among all automotive enthusiasts. Despite that, I will try to throw in some facts. Personally, I canโ€™t stand an exhaust system with an excessive drone. If you can barely hear your passenger, then whatโ€™s the point, right? Thatโ€™s why resonators are important and why I should define the difference between resonators and mufflers. Resonators are typically canisters with strait-through design and perforated tube and packing material. Mufflers generally are canisters with chambers and baffles that divert flow. The resonator does not reduce the grumble of the exhaust that we love; it targets specific frequencies that cause the annoying drone. Mufflers are the opposite. Also, we have had many customers order the strait pipe exhaust system to return it for the resonated exhaust later.

Thank you for your questions, and keep themย coming. We’ll have a Q&A every month for your Mazda performance questions.

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New Mazdaspeeds? You Heard it Here First!

Motortrend-Mazdaspeed-6-Article

 

Motortrend recently published this Article in their magazine. If you can see it, the article states that Mazda is planning a Mazdaspeed 3 in 2016, they list the details that have been floating around for months, 2.5L Skyactiv, Turbo, 300hp, AWD….. tell us something new!

We just want to point out that this is old news. In fact we even quoted Motortrend quoting their “source” back at the start of November saying the exact same thing!

Check out the post that is almost word for word the same article:

https://www.corksport.com/blog/lets-do-this-mazda-mazda-6-coupe-cx-3-mazdaspeed-2016/

As if that wasn’t enough, we also pointed out in August an article found a few places on the internet about a MS3 in 2017.

https://www.corksport.com/blog/mazdaspeed-3-coming-in-2017-with-awd/

In the article we say: “According to Ryan Beene at Autonews.com the next Mazdaspeed is planned for 2017.”

We also discuss the likelihood of AWD which we had previously pointed out in November of 2013! That’s over a year ago!

See that one here:ย https://www.corksport.com/blog/will-there-be-a-new-mazdaspeed-3-with-all-wheel-drive/

Now before you get upset that we are just pointing fingers and saying “we said it first” I hope you realize that this is actually a good thing! The more that we share a rumor, and so does other reputable sources like Jalopnik, Motortrend, AutoNews and more, the more credibility it gets! I doubt that the rumors of AWD, 300hp and it being a MS3 are that unlikely when it seems everyone is reporting on them.

So, more props to you MotorTrend! We are right there with you and look forward to 2016, 2017 and all the new cars Mazda brings us!

 

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Black Friday/Cyber Monday Bonanza! FREE Ground Shipping on All Parts

corksport discount

Okay guys, let’sย cut straight to the point here!

We’re offering free ground shipping to our U.S. customers through Cyber Monday! This amounts to a pretty huge savings when you consider the cost of shipping heavy products.

International customers, no way we’re leaving you out. Enjoy $25 off your order of $150 or more through Monday!

Restrictions do apply, but they are few & far between.

If you haven’t already, be sure to check out the new parts we’ve launched over the last several weeks. With a stellar pair of new exhausts and an incredible intake system, there has never been a better time to customize your Mazda than this weekend.

Shop New Products

Shop Mazdaspeed 3

Shop Mazdaspeed 6

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Let us know what questions you have on Facebook or Twitter.

Cheers!

CorkSport

 

Why You Need Injector Seals for your Mazdaspeed, Part 2

This post is part 2 of a 2-part series on the importance of injector seals. If you’re just now discovering this post, be sure to tune in to part 1 before continuing here.

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As the title says, you need injector seals for your MZR! Here’s why.

When Mazda designs a part, they design it with the โ€œtypicalโ€ customerย and OEM power in mind – not the power hungry, boost craving driver. ย Yeah, Iโ€™m talking about you and you know it – and we have just the thing to keep you and your MZR in check. ย As you add more fuel and more boost, the weakest link is eventually going to give. That link is the OEM Mazdaspeed injector seals.

Three Reasons You Need Injector Seals For Your Mazdaspeed

  1. Reliability is sacrificed using the OEM seals.
  2. Leaking seals causes loss of power.
  3. Inconsistent performance is caused by leaks.

So, if you are just tuning in to our blog, then shame on you, go read part one like everyone else! With that, letโ€™s dive into the design of the seal and how it works.

We put 500 hard miles on the Mazdaspeed3 and here are the results. ย 500 miles may not sound like a lot, but the company owned MS3 does not live the normal life. It spends most of its time on the dyno testing new products pull after pull, may have hit 35psi, and when it does hit the streets, itโ€™s driven by an employee searching for the governor speed. ย I think we can all agree that the 500 miles was a fair amount of abuse to put the injector seals. Plus, other sets of seals have been running in alpha tester’s vehicles for thousands of miles without issue.

Now that we have that covered, letโ€™s talk a bit more about the design of the seal and how it works.

It’s no longer just a washer with one sealing surface – itโ€™s a cup. So it seals in the OEM location AND along the side of the cup. The secret is in the design (which is all thanks to @Tokay444 from MazdaSpeedForums). ย The lip at the bottom of the cup is flared just a bit so that it crushes down tight against the cylinder head, and as it crushes down, it also crushes outward, pushing against the wall of the port much like an O-ring. If you are having trouble visualizing the flared lip crushing outward, then check out the image below. Time to get technical!

Looking at this side view of the seal, you can clearly see that the flared lip is extended further outward than the side of the seal. (Please note that in this FEA, or Finite Element Analysis, the deformation scale factor is 6.5:1, i.e. highly exaggerated). This design is what separates the CorkSport seal from any other seals on the market today. In the FEA the seal is subjected to 3300lbf in the direction of the arrows; 3300lbf is the approximate clamping force of an M8x1.25 torqued to 18ft-lb. The areas in red indicate a displacement of 0.0057 inches, which is just enough to begin yielding (permanently bending) the beryllium copper material. After the 500 miles of use, we had the four seals precision measured using a CMM (Coordinate Measuring Machine). On average, the seals yielded 0.0015 inches confirming our FEA.

Still following?

So what does this mean to you? When you torque down the fuel injector bolt and clamp you are applying approximately 3300lbf to the injector seal. This crushes the seal downward pushing the flared lip outward into the wall for ultimate sealing strength; and we have all the data to prove it! The CorkSport seal works flawlessly, but because of the design they are not reusable like any other crush seal.

So, now that we are done with all the technical stuff letโ€™s take a look at the used seals. First, I would like to remind you what the injector looked like with the OEM crush washer and only 4000 miles.

The OEM injector seal is extremely dirty, blowing an excessive amount of combustion gases. This makes for a very unhappy MZR. Second, in the images you are about to see, the seals have not been cleaned in any way, shape, or form. I pulled these out of the car and immediately took the pictures. Prepare to be wowed; I know I wasโ€ฆ

Besides the clean injector body, there is a more subtle detail that needs to be pointed out. If you look at the very edge of the flared lip on the seal you will notice that the black soot does not go all the way to the edge. This further confirms that the seals are working the way Brock (@Tokay444 on MSF) had envisioned them and we can also see this โ€œclean ringโ€ in the cylinder head below.

In the image below you will notice that the seal is dirty on the inside, but thatโ€™s okay – that happens by design. The โ€œshelfโ€ that you see midway up on the inside of the seal seals against the injector body instead of in the OEM location further down around the injector nozzle. This change in sealing location allows the flared edge to deflect how it needs.

If I havenโ€™t convinced you yet why you need injector seals for your Mazdaspeed3 then youโ€™re hopelessโ€ฆyou should go get a Civic or something else thatโ€™s slowโ€ฆ

Between our results and the reviews given to us from our alpha testers we have great confidence in the seals and you should too! Keep an eye out for these to be released very soon! Zoom โ€“ Zoom!

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2016 Diesel Mazdaspeed 3 Rumors

Is the Next Mazdaspeed already under our Noses?

We talk a lot about the next Mazdaspeed, will it be AWD, will it be FWD, will it be a 3? the 6? a 2? Though little is known or confirmed, I want to point out a few things we DO know as a fact.

 

Mazda has been working on their SkyActiv D engines for a few years. They have already shown their SkyActiv D engines, they even race them. What many people fail to realize it that the SkyActiv Dย runs in the Mazda 6 with a two-stage turbocharger.

Two-stage-Mazda-Corksport-Mazdaspeed-Turbocharger

The two-stage turbocharger gives you the best of both worlds, it will run a smaller turbo in the low RPM range in order to give you more power and cut emissions, then at higher RPM ranges it flips a lever and runs the bigger turbo to produce more power with no noticeable lag between the two. According to Mazda’s own website “SKYACTIV-D utilizes a two-stage turbocharger in which one small and one large turbo are selectively operated according to driving conditions.” (Source)

 

What else do we know? Well, Mazda has been actively racing the SkyActiv D engines in several endurance races. This is a mildly modified version of the SkyActiv D that is known to put down about 400hp.

 

 

So why would Mazda try and rework a new regular gas powered engine with a turbocharger for the next speed? Why not take the 400 hp Two-Stage turbo diesel that they already have, and pull a little power from it, and release it as a street legal vehicle?

More questions: Why has the SkyActiv D release been delayed? Is it emissions related? According to Mazda their engines pass with flying colors, no treatment necessary. So it can’t be that. In fact when the SkyActiv D was delayed Mazda spokesman Jeremy Barnes was quoted as saying: Skyactiv technology can meet it [emissions] โ€” and it can โ€” but the challenge is engineering a car that delivers the kind of performance that a Mazda needs to have and weโ€™re unable to do that given where we are right now.โ€

Wait a minute. So what you are saying is that the 2.2Lย passes emissions, (source) but doesn’t have enough performance? If Mazda has already passed the emissions testing for the engine then why delay it. We know they have released it in the CX-5 in other markets, they even confirmed they will be releasing it in the Mazda 3 in Australia come September. (Source) Along with this the CX-5 has been selling in Japan at a rate of “four 2.2L SKYACTIV-D purchases for every one 2.0L SKYACTIV-G.” (Source) So why would they work on a turboย gasoline variant when the Diesels (which already have aย turbo) are already clearly being sold at such a significantly greater rate? My answer? I don’t think they will.

So what’s the delay. My guess is that they plan on announcing the SkyActiv D release date at the same time as the performance oriented version, the Mazdaspeed SkyActiv D which may be a variant of the engine seen above. Even the SkyActiv D that is currently running in the CX-5 pushes 310 lb ft of torque and 173 hp. Still impressive, especially that torque! Imagineย bumping the hp by even 100 and the torque would be incredible!

Last but not least, check out these two videos from Mazda that were released almost 2 years ago. Starting at minute 2 they say some interesting things.

https://youtu.be/cK5SQkEUBdo?t=2m

“An exceptionally high redline or 5200rpm. When we were done we had created a beast … delivers the driving performance of a 4.0L V8.”

A 4.0L V8!! ย Just do a quick google search for standard HP from common 4.0L V8s and you should be more than impressed with the results. Is this Mazda teasing us and we just failed to notice?

In the long run, whether we get a Mazdaspeed version of the SkyActiv D or not, I can’t wait until it hits our shores for good. Let’s hope it’s soon!

 

Until next Time,

-Spencer@CorkSport