MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K
MISHIMOTO MMINT-CTR-17K

MMINT-CTR-17KSLWBK

Mishimoto® (17-21) Civic Type-R Performance Intercooler System

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Compatible: (2.0L)

2017 - 2021 Honda Civic Type R

 



 

It’s no easy feat to be dubbed as one of the fastest front-wheel drive production cars in the world. Honda put all of their engineering prowess behind this achievement, but since the 2017-2021 Honda Civic Type R finds itself in the gray area of track fiend and commuter car, some sacrifices had to be made. One of those sacrifices comes in the form of the underperforming intercooling system. Under intense driving conditions or just being caught in a sweltering summer day, the stock tube-and-fin intercooler soaks with heat, quelling the performance of your CTR.

We here at Mishimoto aim to put that power back into your hot-Honda by keeping it cool with the Mishimoto 2017-2021 Honda Civic Type R Performance Intercooler Kit. We started by increasing the overall size of the core to more than double that of the stock dimensions. The 4.7-inch thick core boasts a 169% increase in overall volume and bumps the external fin surface area by 189% for optimal heat rejection properties.

We didn’t stop with the size increase either. To keep the charged air flowing properly through the larger core, we updated to a bar-and-plate core construction. The robust design offers not only improved flow characteristics but also aids in transferring heat away from the charged air. The plastic end tanks are a thing of the past and have been replaced with our sleek cast aluminum designs to more effectively direct airflow to and from the piping.

With the Mishimoto Performance Intercooler Kit, the intercooler isn’t the only component that received an update. We took the liberty of overhauling the entire intercooling system. Honda carried some of those sacrifices in the name of mass production over to the intercooler piping as well. The restrictive piping diameters limit the K20C1’s potential to turn up the boost with tunes, and the rubber sections are destined to deteriorate down the line. We updated these charged air channels with a 2.5” mandrel-bent aluminum cold-side pipe. The rubber sections, including the hot-side pipe, were swapped for 5 layers of heat-resistant silicone. Both characteristics will increase the airflow through the system and make sure you never experience a boost leak.

The Mishimoto 2017-2021 Honda Civic Type R Performance Intercooler Kit comes with either a black or silver intercooler, with the option of wrinkle black or wrinkle red piping to match your style. This kit also includes the Mishimoto Lifetime Warranty to keep you boosting around the track worry free.

  • Direct fit for the 2017-2021 Honda Civic Type R
  • 4.7" thick intercooler design optimized for maximum flow
  • Max power gains of up to 10 whp and 10 wtq
  • Drops outlet air temperatures by 50°F on stock tuning
  • Optimal core design for maximum cooling efficiency with minimal pressure drop
  • Intercooler volume increased by 169% and external fin surface area by 189%
  • 2.5" piping diameter improves flow characteristics
  • Mandrel-bent aluminum cold-side piping for increased durability
  • Available in silver or black intercooler with the option of wrinkle black or wrinkle Rallye Red piping
  • Patent #D931,336
  • Mishimoto Lifetime Warranty


VEHICLE SPECS

ENGINE CODES K20C1
CHASSIS CODES FK8
FITS 2017-2021 Honda Civic Type R



PRODUCT SPECS

INSTALLATION TORQUE SPECS 27 in-lbs (3N*M) recommended for all t-bolt and constant tension t-bolt clamps. These clamps have an operating range of 18-35 in-lbs (2-4N*M). Do not exceed the maximum torque rating of 35 in-lbs (4N*M).
COLD-SIDE INTERCOOLER PIPE SPECS 2.5"
HOT-SIDE INTERCOOLER PIPE SPECS 2.5"
WEIGHT 29 lbs
COATING Powder Coated
OUTLET 2.5"
INLET 2.5"
CORE SIZE 28" x 7.6" x 4.7"
CONSTRUCTION Bar-and-Plate

 

PURCHASE INCLUDES

(1) Intercooler
(1) Mandrel-Bent Aluminum Cold-Side Pipe
(1) Silicone Hot-Side Pipe
(2) Silicone Couplers
(6) High-Torque Worm Gear Clamps
Mounting Hardware
Mishimoto Lifetime Warrany

 

INTERCOOLACTIC PLANETARY – 2017+ HONDA CIVIC TYPE R PERFORMANCE INTERCOOLER KIT R&D PART 4 – INTERCOOLER PRODUCTION SAMPLE

020518_NLT_CTR_INT_WEB_10

How does the number compare, though? What does a 169% increase in size look like in relation to the FK8? Well, lucky for you, the difference in size is quite notable, as it should be when we’re more than doubling the size of the stock unit. The stock unit appears as if it fills that entire lower grille opening on the front bumper. However, our engineer put in his best efforts to demonstrate that there was plenty of room to expand into.

Honda was nice enough to leave plenty of room for us to expand our intercooler into.

Honda was nice enough to leave plenty of room for us to grow.

020518_NLT_CTR_INT_WEB_4

Once removed from the Civic, the size difference is much more apparent. With the 3 additional rows of fins, our new design towers, bringing a 50mm increase over what Honda deemed appropriate for their mother of all hatchbacks. Adding to the height of the new design not only helps with the new core volume figure, but also increases the frontal surface area for the heat exchanger, which is arguably just as important. Where volume and thickness allow for an increase in flow and the ability to cool more air at once, increasing the fin surface area enhances the fresh air’s ability to whisk the heat away from our intercooler. Size is an important factor when it comes to creating a new intercooler, but what’s on the inside counts just as much.

020518_NLT_CTR_INT_WEB_15

It's always important that the full core is used. In addition to the extra rows stacked on top of our core, we're also incorporating an air diverter to ensure we're efficiently making use of the extra space in the core.
It’s always important that the full core is used. In addition to the extra rows stacked on top of our core, we’re also incorporating an air diverter to ensure we’re efficiently making use of the extra space in the core.

The construction is key. Gone is the convection oven known as Honda’s stock core design. In its place is our more robust, heat-wicking bars and plates. The Japanese giant did have to cut some corners when it came to their intercooling system, making a tube-and-fin and plastic combination an ideal solution for even their limited run super-hatchback. Upon release, they made it seem that the FK8 was ready to dominate the track. Stories of the contrary have been reported, though, of high temperatures from plenty of our track-going friends.

0926_NLT_Mishi_TrackDay_19

Many of you might be wondering about the CTR’s Achilles heel, which is the lack of airflow to the radiator. Given the FK8’s struggle to keep the coolant, well, cool with the stock configuration, one might think that mixing an intercooler (that’s more than twice the size) into the grille will cause twice the trouble. Dan thought the same. A front-mounted intercooler is a balancing act between maximizing the flow of charged air through the core and the fresh air flowing through the fins. 020518_NLT_CTR_INT_WEB_6

In order to maximize cooling, we would want to give the new core a fairly tight fin density, but given the CTR’s lack of airflow to the radiator, that could be counterproductive to the overall performance of the car. Dan staggered the fin density throughout the new intercooler. The external fins keep some distance from each other, allowing the fresh air to pass through to the radiator, while the internal fins are quite friendly with each other to aid in the heat transfer.032918_NLT_CTR_INT_WEB_1

You know how the old saying goes “it’s what’s on the inside that counts?” In the case of our Civic Type R intercooler, it’s actually a little bit of both. The outward appearance, and stature over the stock intercooler unit, is designed to contribute just as much to the performance as the more robust construction and end tank design. While all of this might look great in theory, the true fruits of our labors will be revealed on the dyno.

No one ever said that R&D was a clean job.

No one ever said that R&D was a clean job.

 

INTERCOOLACTIC PLANETARY – 2017+ HONDA CIVIC TYPE R PERFORMANCE INTERCOOLER KIT R&D, PART 5 – PIPING PRODUCTION SAMPLE

Until we can somehow devise a pipe-less intercooler system, ensuring that we improve on the stock pipes is always a requirement.
Until we can somehow devise a pipe-less intercooler system, ensuring that we improve on the stock pipes is always a requirement.

You might remember from our design plans post that we decided to ditch the plastic end tank construction and go with a full aluminum design better suited for the new, much more robust core. In doing so, we also changed the design on the inlet and outlet, rendering the stock piping all but useless.

Where the oval openings on the stock unit helped guide the flow through the entirety of the core, our new end tanks include a diverter that will serve the same purpose.
Where the oval openings on the stock unit helped guide the flow through the entirety of the core, our new end tanks include a diverter that will serve the same purpose.

We did note in our review of the CTR’s stock intercooling system that the piping was clearly devised to withstand the more demanding driving capabilities that the car was intended for. With that, the oval shape that Honda incorporated into the intercooler design was to aid in the flow of charged air through the intercooler, and make full use of the core, hence the funky looking adapters on the stock piping.

080717_NLT_CTR_INT_HD_9

We could have easily designed our new end tanks with the stock piping in mind. However, Dan had his focus set on the future potential of the K20C1. The issue with the stock piping adapter is that their 58mm diameter  will restrict the flow to and from your intercooler, and ultimately limit the performance, especially after installing a tune. Since making oval-shaped silicone couplers is a little tricky, and recreating the aluminum adapters would be pricy, we went back to the classic circle shape all while improving on the performance.

Silicone is the material of choice when it comes to replacing Honda's intercooler piping adapters.
Silicone is the material of choice when it comes to replacing Honda’s intercooler piping adapters.
Don't worry, it's meant to look like that. Given the tight squeeze around the front cooling stack, Dan had to add some extra curves into the couplers in order to fit and retain a larger diameter.
Don’t worry, it’s meant to look like that. Given the tight squeeze around the front cooling stack, Dan had to add some extra curves into the couplers in order to fit and retain a larger diameter.

Much like how creating a new intercooler is a balancing act, it’s also crucial that we get the piping diameter just right. Where the stock piping would eventually become a restriction, opening the piping diameter too much would cause a massive drop in boost pressure, which is just as bad as creating a choke point. Our engineer found that a 2.5” mandrel-bent section of pipe was the best option for optimizing airflow on the cold side, and adding an extra splash of color to your CTR’s engine bay.

020518_NLT_CTR_INT_HD_8

Not only will you be improving the flow of your intercooling system by installing our pipes, but also sprucing up the engine bay with the Rallye Red cold-side pipe option. For those of you looking for a less conspicuous aesthetic, they will also be offered in wrinkle black.
Not only will you be improving the flow of your intercooling system by installing our pipes, but also sprucing up the engine bay with the Rallye Red cold-side pipe option. For those of you looking for a less conspicuous aesthetic, they will also be offered in wrinkle black.

020518_NLT_CTR_INT_WEB_3

Where our cold-side pipe is coupled with specifically designed silicone pieces, our hot side is a single section of the stuff. Using 5 layers of durable silicone embedded with heat-resistant fibers, this new hose reduces the risk of leak points and is more than tough enough for the turbo K20.

020818_NLT_CTR_INT_WEB_1

With the charged air delivery method sorted out, our hefty new intercooler makes much more sense. On paper, and installed on the car, our new design looks great, but the true test of our new intercooler kit comes after CTR #1254 spends some time on our Dynapacks.

INTERCOOLACTIC PLANETARY – 2017+ HONDA CIVIC TYPE R PERFORMANCE INTERCOOLER KIT R&D, PART 6 – DYNO TESTING RESULTS

020818_NLT_CTR_Dyno_WEB_3

A bigger intercooler is an investment in your Civic Type R’s future, especially for those who are doing builds and expect big numbers from the K20C1. Depending on the car and the design, adding more fins and surface area to the intercooling system usually gives you some power right off the bat. Our new design does squeeze a few extra drops of power from the CTR, but the main objective is to keep your charged air temperatures down.

020818_NLT_CTR_Dyno_WEB_4

Where the stock intercooler would flunk out from even spirited driving, our intercooler is designed to keep the CTR’s GPA up, and its finals week here at Mishimoto. Our engineer, Dan has plenty of testing in store to make sure that it’s up to the task. We started with standard power pulls. These single runs give us not only a look as to how well the new core can wick away the heat, but also allows us to record any power increases. For the sake of science, we made sure to run the same tests on our CTR’s stock intercooler as well. Here’s what we saw with the factory unit.

With Honda's original design, the intercooler's outlet is still very much reliant on the inlet temperatures. Once you put your foot down, the small tube-and-fin design can't seem to keep up.
With Honda’s original design, the intercooler’s outlet is still very much reliant on the inlet temperatures. Once you put your foot down, the small tube-and-fin design can’t seem to keep up.

Just from looking at this graph, it’s plain to see that heat takes up residence in the stock intercooler without much resistance. The main effect is that those high temperatures are now being forced into your intake manifold, and aren’t nearly as easy to compress. By comparison, here is what our larger core and piping was able to do to keep the charged air temperatures down.

With our new design, the inlet and outlet temperatures are completely independent of each other. The larger and more robust tubes and densely packed fins are able to wick the heat from the charged air much more efficiently.
With our new design, the inlet and outlet temperatures are completely independent of each other. The larger and more robust tubes and densely packed fins are able to wick the heat from the charged air much more efficiently.

Single Pull Comparison

The real difference is apparent when we run our heat-soak tests. Since nobody drives their CTR one power pull at a time, we’ve devised a way to simulate the effects of demanding driving styles and heat up the core. We run 4 sustained pulls directly after each other, with no break to let the car cool. First up in the hot seat is the stock intercooler.

From this test, we can truly see the dependency between the inlet and outlet on the stock core. While the stock intercooler does show some heat dissipation characteristics, a good portion of the hot charged air still makes its way through the fins.
From this test, we can truly see the dependency between the inlet and outlet on the stock core. While the stock intercooler does show some heat dissipation characteristics, a good portion of the hot charged air still makes its way through the fins.

Honda clearly had daily driving in mind when they first developed the CTR’s intercooler. The smaller volume, and lightweight tube-and-fin construction make for easy passage of the heat from one side to the other. With temperatures reaching upwards of 140°F from the outlet on a stock tune, the K20C1’s performance is going to suffer once you really start putting the hammer down. Unfortunately, we ran our testing before any of the tuning was available, but it’s not hard to imagine that the results would be much hotter. For a little insight into what a tune can do to your charged air temperatures, make sure you check out the the data we collected when testing the intercooler for the CTR’s little brother. With the stock testing complete, we swapped out the dinky stock core for ours to see what it had to offer.

020818_NLT_CTR_Dyno_WEB_11

Mishi Heatsoak

With our intercooler kit installed, we couldn’t seem to get the outlet temperature to budge much higher than the ambient temperatures in the shop. Thanks to the total increased volume, combined with the hefty bar-and-plate construction, our core design was able to intercept the heat before it made its way across the intercooler.

020818_NLT_CTR_Dyno_WEB_16

Heat isn’t the only thing that our intercooler kit can handle. There’s one thing that going to school and the CTR definitely have in common. There’s lots of pressure. When modding a turbocharged vehicle, it’s all about how to maximize the boost pressure. Luckily, cranking up the PSI on a modern forced induction vehicle is pretty easy by way of a tune, but as we went over earlier, the unwanted side effect is heat, hence the need for an intercooler. If you look back through our design plans, you’ll see that going for the biggest possible diameter on the piping and inlet/outlet sizes isn’t in the best interest for capitalizing on your boost pressure. Dan made sure to run all the right calculations in order to get the pipe and end tank opening sizes just right. Calculations could only get us so far, so we made sure to measure our boost pressure on the inlet and outlet of both the stock core and our core.

With any intercooler, even stock units, there’s going to be some sort of pressure drop. Just the nature of filling the volume and slowing the air enough so the heat can be wicked away reduces the amount of pressure recorded on the other side. You might notice that during our testing we did record approximately 1 PSI of additional pressure drop over the full system, which, given the increased size of the pipes and the internal volume of the new core, wouldn’t even cause a noticeable effect on the boost pressure.

Stacked up against each other, the outlet pressures end up looking almost identical to each other, meaning that with our intercooler installed you won't notice much of a difference in boost pressures.
Stacked up against each other, the outlet pressures end up looking almost identical to each other, meaning that with our intercooler installed you won’t notice much of a difference in boost pressures.

It’s here, graduation day for our now highly educated and chilled out CTR. It’s a no brainer that the stock unit wasn’t up to the task, and our new and improved core was the degree your Type R needed to go even further. After acing the test in temperature drops, crushing the exam in pressure drops, and picking up some credits in the department of power, the CTR is ready to tackle the post-grad life of tunes and bigger turbos.

092617_NLT_CTR_Track_WEB_2


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