Weighing in at a respectable 320 grams, the CorkSport leather shift knob will help smooth your gear changes and customize the interior of your Mazda while doing so. With an ergonomic design and large top surface, the CorkSport leather shift knob is comfortable to use for any grip position. Check out the difference between the OEM shift knob and the CorkSport leather shift knob.
Manufactured from Delrin plastic, then hand-wrapped and stitched with high grade black leather, the CorkSport leather shift knob will stand up to daily driving and track use day-in and day-out. The baseball style stitches are tight and clean, leaving no loose edges to fray or annoy you; and the leather has a slight texture and plushness to it, so it feels great in your hand.
Don’t wait! Get your leather shift knob today before they’re gone!
-Barett, CS Engineering
The CorkSport Leather Shift Knob for Mazdas February 6th, 2015CorkSport
Fighting boost spikes with the Mazdaspeed K04 Turbo or maybe boost creep with an internally gated GT3076R? Or have you gone all out with an externally gated setup? Whatever the reason, you have probably realized that the OEM boost control solenoid is not up to par and desperately needs something that is reliable and tunable.
The CorkSport EBCS utilizes the latest technology in solenoid-controlled air valves, as well as using a light weight, low friction, and balanced valve design. The CorkSport EBCS will handle pressures from vacuum to 120psi with an operating frequency of 0 – 1000Hz and response time of 700µs.
So what does this actually mean to you?
You can build boost faster, reduce or eliminate boost spikes, and hold boost more accurately throughout the RPM range. Don’t believe me? Then check out the graph below comparing the OEM EBCS to the CorkSport EBCS both in bleed setup.
You can see a noticeable difference between the two graphs. Boost rises sooner, and there is no overshoot with the CorkSport EBCS. With the same Stage 2 tune, only changing the EBCS and adjusting the waste gate duty cycles, we saw an increase of 18 ft-lb of torque at peak due to the more boost at a lower RPM.
Not only does the CorkSport EBCS work great, but it also fits great! Designed with ease of installation in mind, the EBCS can be located in the OEM location, or on the valve cover for turbochargers without the OEM tab. This goes for both TMIC and FMIC setups. There is also no wire cutting or soldering needed! Simply plug the electrical connector into the wiring harness and you are ready to go!
Whether you are just stepping into the Mazdaspeed world or are the horsepower king at the local dyno, there is a place under your hood for the CorkSport EBCS. This will benefit you from K04 turbocharger to an externally gated GT3582R, and there are two ways to look at the CorkSport EBCS. First, it’s a potential power adder due to its far superior response time, efficiency, and accuracy; or second, it’s a safety device for the exact same reasons. Now there is one catch…correct use of the CorkSport EBCS will require adjustments of the waste gate duty cycles. We recommend you contact a professional tuner to setup your new CorkSport EBCS.
Take control of your boost with the CorkSport Mazdaspeed Electronic Boost Control Solenoid! For more technical information check out our white paper write-up of the EBCS.
-Barett, CS Engineering
The New CorkSport Mazdaspeed Electronic Boost Control Solenoid (EBCS) May 28th, 2024CorkSport
The Mazdaspeed platform is a pretty well-supported car in the engine performance and suspension market, but it seems to be lacking in some of the markets that truly allow you, as the driver, to connect to the car. This is especially true for the GenWon owners. Well, CorkSport has decided to help the forgotten GenWon owners become more intimately connected to their Speed3. So what are the components of a car that the driver is most intimate with? I would have to say the pedals, seat, steering wheel, and, of course, the shifter.
So which of those did we release? It’s not pedals. (Autozone has that covered.) Unfortunately, it’s not a seat, but that would be awesome. It’s not a steering wheel…yet. (Oops. Did I say that out loud?) I’m happy to say it’s a short shifter, and not the kind that goes under the hood. Sure, there are a few options out there, but they leave a lot on the table and the price seems ridiculous.
Manufactured from high-grade 6061-T6 aluminum, this precision machined double adjustable short shifter is sure to give you that intimate connection and control with your Speed3. Plus, it’s 100% designed and manufactured right here in the Pacific NW, USA.
So what sets the CorkSport Short Shifter apart from the competition? This short shifter is double-adjustable, but not in the way the competition defines it. First, there are four throw positions ranging from OEM throw distance to the 35% shorter throw distance. Second, the shift knob height is adjustable from 11.75 to 9.5 inches tall with the OEM height being 11.125 inches. Lastly, just look at it: It’s gorgeous. It’s a shame it gets hidden under the shift boot.
Take a look at the comparison images below:
This image shows the forward, neutral, and back positions of the OEM shifter.This image shows the forward, neutral, and back positions of the CorkSport Short Shifter in its shortest height and shortest throws position.
Of course, a product like this doesn’t come to life overnight. There were many hours of design, testing, and revision done to verify that the product you receive is the best it can be. Below are a couple images of 3D-printed prototype we made on our 3D printer to help speed up the R&D.
In addition to the prototype testing, we also perform FEA (Finite Element Analysis) on all applicable components to verify they’re strong enough to last for many, many years. Below is a complete CAD model and the FEA for the throw adjustment arm with 50 lbf applied to the shortest throw position. This is the worst case scenario, so if it doesn’t fail here it won’t fail in the other positions.
With the 50 lbf applied to the arm, the maximum stress was ~10k psi which is great news. This component alone is 4 times stronger than it needs to be if you were able to apply 50 lbf to the arm.
I have personally been using this shifter in my 2009 Speed3 for a month now and have nothing but great things to say. Don’t take it from me, though. Here is a quote from a beta tester:
I’m taking a spirited drive today to get a better feel for it. So far I’m enthusiastic about the (extreme) difference. When shifting with the OEM shifter the throw was so long that I spent a lot of effort synchronizing the clutch with the motion of shifting—essentially slipping the clutch while completing the motion of going into gear. With your short throw shifter the entire motion has changed dramatically and all I have to concentrate on is the clutch, and that’s been reduced by ~50%. I just throw it into gear and pop the clutch. It’s so stiff anyway and really likes to engage/disengage near the end when releasing pressure on the pedal that the motion becomes much more fluid. The shifter motion has gotten much tighter and requires (what feels like) more pressure to move between gears, but the motion itself has been reduced so much that it creates a sense of precision and removes (what felt like) sloppiness when using the OEM shifter. I’m sure that adjusting the height & throw from such an extreme position would reduce what I would describe as the rigidity of the shifts, although I intend to continue using it in the position we installed it.
My 2 cents so far. Overall I’d highly recommend.
Hope all is well,
Michael
So what are you waiting for? Take the leap, you won’t be disappointed!
-Barett, CS Engineering
The New CorkSport Adjustable Short Shifter April 8th, 2020CorkSport
With more and more information circulating about the new Rotary and MX-5 Miata, we’ve compiled everything you need to know about these two beauties.
Rotary 2017
Mazda has been pretty tight-lipped about the next Rotary. In fact, just a few months ago, we heard a few sources claim that the Rotary wasn’t in development at all, or at least was no longer being focused on. Well, hope has been renewed! This news is thrilling, and it honestly lines up perfectly with what we published back in August: What Mazda Said That Will Have You Saying, “Take My Money!”
So what’s the excitement? Well, according to an article posted here, Mazda Kiyoshi Fijiwara (Managing Executive Officer) recently was referenced stating that they should be coming out with a new Rotary in 2017 at the Tokyo Motor show. Mazda is pretty big into anniversaries, and this just reaffirms our hunch they’ll use the 50-year anniversary of their first commercially available Rotary to release a new one. They did it with the 25th anniversary of the Miata MX-5, so why not the Rotary?
This is exciting news, and the best part is, they say it should have close to 300hp!
In case you can’t read Japanese, see the (slightly modified) Google Translation below:
Kiyoshi Fujiwara, the Mazda Managing Executive Officer, at the event in Spain was saying that the company is thought to publish a new car equipped with a rotary engine at the Tokyo Motor Show in 2017.
2017: It’s a memorable year. The world’s first commercially-available car equipped with a rotary engine “Cosmo Sports” appeared 50 years earlier. The name of the new car is unknown. As specs become realities, it is clear the “RX-7” engine should come near the order of 300hp.
2016 MX-5 Miata Only Gets 155hp
In other news, the engine is officially confirmed at 155hp and 148 ft/lbs of torque for the next generation MX-5. Though this might seem underwhelming, we still have high hopes. The three reasons for these hope are as follows:
Reason 1:
2015 Miata: 2,619 lbs, divided by 167 hp = 15.68 lbs per Horsepower
2016 Miata: 2,200 (estimated) lbs, divided by 155hp = 14.19 lbs per Horsepower
It’s only an estimate, but the next Gen MX-5 would have to weigh over 2,400 lbs in order to have a worse power-to-weight ratio than the current model.
Reason 2:
Mazda knows more than ever that everyone wants a faster and higher horsepower car. This knowledge, and the fact that they don’t currently produce, and have not announced, plans to introduce a single Mazdaspeed variant of any of their cars, gives us hope. You might think that makes no sense, but consider it: Doesn’t all their silence about the next Mazdaspeed seem strange? How can a company that has the most vehicles racing in the World on any given weekend NOT have a Mazdaspeed? Secrets.
Mazda has been parading around their Super20 Miata since 2012—a roughly 250 horsepower supercharged Miata that’s received incredible press and reviews. Of course, it isn’t available for public sale. So why does Mazda continue to tease us? Why produce these totally reachable cars that people want without actually producing them for sale? It could just be for publicity, but our bet is also that Mazda has secretly been working on the next Mazdaspeed, and it will be an Mx-5. If we’re right…. we would guess everyone will receive a good confirmation of the next Mazdaspeed MX-5 soon.
Reason 3:
The MX-5 is the pinnacle of Mazdas to modify. More people are modifying their Miata/MX-5 than probably all other Mazdas combined. What does this mean? Turbos, Intakes, Exhausts, Suspension, Bodykits, Lighting: There are so many mods!! Mazda knows people love to modify their cars. If they don’t do it themselves, they know their customers will, which is why we have a feeling that with a few small tweaks, we’ll have this next MX-5 purring and putting out an extra 20-40 horsepower in no time.
Check out The Jalopnik article on the Miata and it’s 155HP: HERE.
Mazda said WHAT about the Rotary in 2017? Also, the 2016 MX-5 December 18th, 2017CorkSport
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 “normal range” 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: What’s the most power you have seen a SkyActiv-G engine put down?
Questioner: Shane Foster
Answer: I haven’t heard of any high power SkyActiv-G and we probably won’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 V8’s. 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 that’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, check 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 ½” diameter hose attached to a shop vac and scrap away, but I don’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 can’t say I recommend it. You can’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 let’s give it a shot. I personally run Mobil-1 Full Synthetic and half a quart of Lucas Oil Stabilizer for 3000 miles. I’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 be the manufacturer’s suggested viscosity or slightly thicker. I say slightly thicker because I have found good results when doing so with higher that 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: I’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 on’s; there just isn’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 on’s are either already done or planned, maybe even a turbo, but we don’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?
Questioner: Mike Wildt
Answer: With the combination of those, the highest gain I would expect 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 strait 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 with all automotive enthusiasts. Despite that, I will try to throw in some facts. Personally, I can’t stand an exhaust system with an excessive drone. If you can barely hear your passenger, then what’s the point, right? That’s why resonators are important and why I should define the difference between resonators and mufflers. Resonators are typically a canister with strait through design and a perforated tube and packing material. Mufflers are typically canisters with chambers and baffles that divert flow. The resonator does not reduce the grumble of the exhaust that we love, it targets certain frequencies that cause the annoying drone. Mufflers are the opposite. Also, we have had many customers order the strait pipe exhaust system to later return it for the resonated exhaust.
Thank you for your questions and keep them coming. We’ll have a Q&A every month for your Mazda performance questions.
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Top 7 Mazda Questions with Our Answers April 10th, 2024CorkSport
