Mishimoto 2016+ Honda Civic 1.5L Turbo Intake Development - 10th Gen Civic Forum
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post #1 of 73 (permalink) Old 04-08-2016, 11:03 AM Thread Starter
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Mishimoto 2016+ Honda Civic 1.5L Turbo Performance Intake Development

The Civic Has Boost! Performance Intake R&D, Part 1: Stock System

As some of you already know, we have finally been graced with a brand new 2016 Honda Civic with the 1.5L turbo engine! We have planned our R&D process for the design of a performance intake and we are starting this project by dissecting the stock system so we can learn as much as possible. Let’s jump right in!

The Stock Intake



Honda has done an excellent job with their new Earth Dreams 1.5L motor. This turbocharged engine has a power output rated at an impressive 174hp, which is a nice amount of power for this new-age Civic. We are very excited about this chassis and we are eager to dig in and develop an awesome intake that will provide easy bolt-on power. Let’s check out some shots of the stock system on the car.







The intake has simple routing, but the system is more complex than you might think – we will get to that in a bit. You’ll notice that part of the intake piping is routed right over the turbocharger. In our design, we will opt to leave this part of the system alone so as to help with heat soak. Check out some images below.





Once we removed the desired pieces, we found a good amount of space to work with on our intake design.



Another pretty interesting design feature is the way that air is diverted to the intake. On the front driver-side part of the hood, a small rubber diversion plate is located right above the intake inlet. We had to be sure that this air diversion was indeed the purpose of this piece, as that is crucial to how we will go about designing this intake.





As we closed the hood, you can see in the shot above that the plate is placed right next to the vented area, which is empty space that air passes through. So, the air comes into that space via the front grille. Check out an image below that was taken from behind that area.



Let’s dive into the stock system components a bit more. Below is an image of the entire system.



The top half on the right is the intake where the air passes into the airbox. This is also the location of the air filter. The bottom half on the left is the resonator that attaches to the intake. It is more common in modern cars to have resonators incorporated in stock intake systems. They enhance the sound of the engine inside the cabin by means of specific frequencies.

Let’s see more in-depth images of these 2016 Honda Civic parts!







To wrap up this introductory post, let’s go over the goals we have set for this project.

Goals

Include a fully enclosed airbox

We want to be sure that this Civic is getting the coolest air possible. Since this is a very tight and compact engine bay, it is important that we keep things cool with this intake, so an enclosed airbox is a necessity.

Utilize the factory air duct
Utilizing the factory air duct is important here. There is already a design in place for directing fresh air into the stock intake, so why not make use of that in our design?

Replace only the top portion
The top half of the stock intake looks simple enough, however, removing the resonator was a complex task. We’d like to keep the resonator exactly where it is, which will keep the install easier and also reduce the number of parts that need to be removed from the car.

What’s next?

We will be designing and testing a prototype to see what kind of improvements we can make. Up next, our prototype design!

Thanks for reading!
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Last edited by Mishimoto; 04-08-2016 at 11:15 AM.
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post #2 of 73 (permalink) Old 04-15-2016, 11:57 AM Thread Starter
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The Civic Has Boost! Performance Intake R&D, Part 2: Prototype Development

We are moving along with the intake project! Last time, we talked about the stock system and our goals for this project. Now, we will show you our process for assembling a prototype that we can test and analyze results from. Let’s jump right in!

Once our engineers finalize a design, the proposed idea gets modeled in 3D modeling software. The next step is to make the idea a physical reality. We have an awesome machine called a waterjet that can cut almost anything with pinpoint accuracy using a mixture of high pressure water and abrasive material. We upload our design to the waterjet through computer software, “telling” it exactly what we want to cut. The machine takes care of the rest! We just sit back and watch as our prototype gets crafted out of a big sheet of any metal we place inside the machine – in this case, steel.







Next, we arrange the pieces, prepare them for assembly and weld them together to form the prototype.







Pay close attention to the image above. It shows how we plan to use the stock fresh air duct we discussed in the last post. The front of the box with the opening is where the filter will gather cool fresh air. We wanted to have an enclosed airbox while still retaining use of the fresh air that is guided into the duct. This will ensure that most of the hot air from the cramped engine space is directed away from the filter.






What’s Next?



We have a working prototype ready for dyno testing. Stay tuned for the next update to see our results and what our performance gains look like! As always, thanks for reading!
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post #3 of 73 (permalink) Old 04-16-2016, 08:39 PM
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Great work, the 10th gen is getting love early in it's life, nice to see someone besides Injen......They are nice items too.
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post #4 of 73 (permalink) Old 04-19-2016, 04:55 PM Thread Starter
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Originally Posted by hawk02 View Post
Great work, the 10th gen is getting love early in it's life, nice to see someone besides Injen......They are nice items too.
Thanks for the kind words! We are excited about this intake as well. More updates are coming in soon!
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post #5 of 73 (permalink) Old 04-20-2016, 01:11 PM
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are you guys going to be making a drop in replacement filter for the stock intake? I've been used to going K&N but open to other brands on the market and you guys have shown to be right up their with the best.
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post #6 of 73 (permalink) Old 04-21-2016, 09:38 AM Thread Starter
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are you guys going to be making a drop in replacement filter for the stock intake? I've been used to going K&N but open to other brands on the market and you guys have shown to be right up their with the best.
Thanks for the kind words!

For this intake, the kit will come with our own conical filter replacing the components of the stock airbox. We currently have no plans for a direct drop in filter replacement for this Civic, but rest assured the filter we plan to use will be a high flowing one!
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post #7 of 73 (permalink) Old 04-21-2016, 12:29 PM
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Might just be best to get the full system from Mishi since you're going through all that effort already, plus the results will be noticeable, with that, rewarding. Used to do the same thing, just getting better OEM style filters but once you go for a full aftermarket air intake, you almost never stick with OEM with future cars.
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post #8 of 73 (permalink) Old 04-24-2016, 07:24 PM
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Great post !
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post #9 of 73 (permalink) Old 04-26-2016, 11:34 AM Thread Starter
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Originally Posted by 5TAR View Post
Might just be best to get the full system from Mishi since you're going through all that effort already, plus the results will be noticeable, with that, rewarding. Used to do the same thing, just getting better OEM style filters but once you go for a full aftermarket air intake, you almost never stick with OEM with future cars.
Thanks for the kind words. There are definitely benefits to using our design. With a fully enclosed airbox, your intake is getting cooler and fresher air. Also since it's located closer to the hood, hydrolock isn't even a concern! You'll also get more airflow with our larger filter. More updates coming soon!

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Great post !
Very much appreciated!
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post #10 of 73 (permalink) Old 04-27-2016, 09:25 AM
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Can't wait to see the dyno chart and performance gains from the new intake!

I've read that manufacturers have tuned their cars to be much more conservative than the actual potential performance in an effort to prolong vehicle reliability. Will the increased performance from the new intake affect that?
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