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  1. The Mishimoto 2nd-Generation Cummins Intercooler, Part 4: Product Testing and Results

    The Mishimoto 2nd-Generation Cummins Intercooler, Part 4: Product Testing and Results

    Interested in picking up our 2nd Gen Cummins intercooler or intercooler pipe kit? Check out the product pages linked below!

    Dodge 5.9L Cummins Intercooler

    Dodge 5.9L Cummins Intercooler Pipe & Boot Kit

    After running into some testing issues (transmission problems) with one of our donor trucks, we began looking for a new truck to bring into the garage for data collection. We decided to target a modified truck, assuming those interested in our Cummins intercooler kit would better relate to any benefits we would see on something pushing more power. After putting out a request for local volunteers, we finally struck gold with a well modified 24V that was relatively local, and the owner was willing to make the drive to help us out.

    The Truck!

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  2. The Mishimoto 2nd-Generation Cummins Intercooler, Part 3: Prototype Evaluation and Test Fit

    The Mishimoto 2nd-Generation Cummins Intercooler, Part 3: Prototype Evaluation and Test Fit

    Interested in picking up our 2nd Gen Cummins intercooler or intercooler pipe kit? Check out the product pages linked below!

    Dodge 5.9L Cummins Intercooler

    Dodge 5.9L Cummins Intercooler Pipe & Boot Kit

    Mishimoto intercooler dyno testing
    Mishimoto intercooler dyno testing

    We included a teaser shot of our prototype cooler toward the end of our last update. Now it is time to provide a more in-depth look at our intercooler.

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  3. The Mishimoto 2nd-Generation Cummins Intercooler, Part 2: Factory Cooler Data and Mishimoto Design

    The Mishimoto 2nd-Generation Cummins Intercooler, Part 2: Factory Cooler Data and Mishimoto Design

    Interested in picking up our 2nd Gen Cummins intercooler or intercooler pipe kit? Check out the product pages linked below!

    Dodge 5.9L Cummins Intercooler

    Dodge 5.9L Cummins Intercooler Pipe & Boot Kit

    Cummins factory intercooler
    Cummins factory intercooler


    The factory inlet/outlet portions of this intercooler are quite interesting. They are shaped to route around the radiator support; however, this has a significant impact on the airflow through this part of the cooler. This bottleneck cannot be eliminated unless users want to grab the Sawzall and shred some steel. We will be

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  4. The Mishimoto 2nd-Generation Cummins Intercooler, Part 1: Project Intro and Factory Cooler Removal

    The Mishimoto 2nd-Generation Cummins Intercooler, Part 1: Project Intro and Factory Cooler Removal

    Interested in picking up our 2nd Gen Cummins intercooler or intercooler pipe kit? Check out the product pages linked below!

    Dodge 5.9L Cummins Intercooler

    Dodge 5.9L Cummins Intercooler Pipe & Boot Kit

    12V and 24V Cummins in shop
    12V and 24V Cummins in shop

    After being hounded by second-generation owners for months, our team decided it was time to fulfill their needs and develop an awesome intercooler upgrade for the 12V and 24V. We would be designing our cooler with a few key features that would set it apart from

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  5. Mishimoto 2010-2012 Dodge 6.7L Cummins Intercooler, Part 5: Testing Results and Project Conclusion

    Mishimoto 2010-2012 Dodge 6.7L Cummins Intercooler, Part 5: Testing Results and Project Conclusion

    Interested in purchasing this Cummins Intercooler? Check out our product page for more information!

    Mishimoto Dodge 6.7L Cummins Intercooler

    Finally, the results are in! The testing of our 2010-2012 Cummins Performance Intercooler is complete. After months of development and weeks of testing, our team was extremely excited to crunch the numbers to see how our cooler compared to the stock unit. Before we jump into the actual data pulled from our dyno pulls, we will first compare the physical attributes of the Mishimoto cooler to the stock unit.

    Intercooler Physical Comparison

    First, our comparison of overall thicknesses of the stock and Mishimoto cores. This difference was displayed in an earlier post where we showed the actual measurements.

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  6. Mishimoto 2010-2012 Dodge 6.7L Cummins Performance Aluminum Radiator, Part 4: Physical Comparison, Testing Explanation, and Project Close

    Mishimoto 2010-2012 Dodge 6.7L Cummins Performance Aluminum Radiator, Part 4: Physical Comparison, Testing Explanation, and Project Close

    Interested in purchasing this Cummins radiator? Check out our product page for more information!

    Mishimoto Dodge 6.7L Cummins Aluminum Radiator

    Alright, it is finally time to see how our engineering team did with the development of this product! First, we measured the physical properties of the Mishimoto radiator compared to the factory radiator. Our first chart highlights the most common selling feature of a performance radiator: core thickness.

    Mishimoto vs. factory radiator core thickness
    Mishimoto vs. factory radiator core thickness

    We squeezed out as much additional core thickness as possible without causing any fitment concerns with factory

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  7. Mishimoto 2010-2012 Dodge 6.7L Cummins Intercooler, Part 4: Prototype Intercooler Testing

    Mishimoto 2010-2012 Dodge 6.7L Cummins Intercooler, Part 4: Prototype Intercooler Testing

    Interested in purchasing this Cummins Intercooler? Check out our product page for more information!

    Mishimoto Dodge 6.7L Cummins Intercooler

    Time to see how efficient our cooler design is! We would be pulling our test truck onto our Dynojet to collect the data needed to evaluate the intercooler fully. Check out the conditions of our testing procedure below!

    Testing Conditions

    Vehicle: 2010 Dodge Ram 6.7L Cummins, Automatic Transmission, Performance Air Intake, Exhaust Modifications, Tune

    Ambient Temperature: 70°F-76°F

    Sensors: PLX Devices with Temperature sensors on both the intercooler inlet and outlet

    Process: 6th-gear pulls from 1,800 rpm to 3,200 rpm, with

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  8. Mishimoto 2010-2012 Dodge 6.7L Cummins Performance Aluminum Radiator, Part 3: Prototype Installation

    Mishimoto 2010-2012 Dodge 6.7L Cummins Performance Aluminum Radiator, Part 3: Prototype Installation

    Interested in purchasing this Cummins radiator? Check out our product page for more information!

    Mishimoto Dodge 6.7L Cummins Aluminum Radiator

    Time to install our prototype radiator into a test vehicle to make sure that it fits perfectly. Luckily, we were able to check fitment on the same donor vehicle we used for our last round of testing. Once the truck rolled into the shop, we quickly installed our prototype radiator shown at the end of our last post. Check out a few shots taken during the installation process!

    Mishimoto 6.7L Cummins radiator prototype installed
    Mishimoto 6.7L Cummins radiator prototype installed

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  9. Mishimoto 2010-2012 Dodge 6.7L Cummins Intercooler, Part 3: Prototype Intercooler Evaluation and Installation

    Mishimoto 2010-2012 Dodge 6.7L Cummins Intercooler, Part 3: Prototype Intercooler Evaluation and Installation

    Interested in purchasing this Cummins Intercooler? Check out our product page for more information!

    Mishimoto Dodge 6.7L Cummins Intercooler

    Our prototype intercooler is ready to go! Let's take a quick peek at what our engineers designed!

    Mishimoto 6.7L Cummins intercooler prototype
    Mishimoto 6.7L Cummins intercooler prototype

    Mishimoto 6.7L Cummins intercooler prototype
    Mishimoto 6.7L Cummins intercooler prototype

    First impressions, this

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  10. Mishimoto 2010-2012 Dodge 6.7L Cummins Performance Aluminum Radiator, Part 2: Factory Radiator Data Collection and Prototype Development

    Mishimoto 2010-2012 Dodge 6.7L Cummins Performance Aluminum Radiator, Part 2: Factory Radiator Data Collection and Prototype Development

    Interested in purchasing this Cummins radiator? Check out our product page for more information!

    Mishimoto Dodge 6.7L Cummins Aluminum Radiator

    Now that we had our project objectives outlined, we could bring in a vehicle to begin the first stage of product development. After checking with our local contacts, we were able to locate the 2010 6.7L you see below!

    2010 6.7L Cummins test vehicle
    2010 6.7L Cummins test vehicle

    A big thank you to the owner of this truck! Take a look under the hood. This truck was equipped with some basic bolt-on modifications.

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