Page 4 - Dodge

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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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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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

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

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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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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

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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

First impressions, this

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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

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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Mishimoto Dodge 6.7L Cummins Intercooler

Time to design an intercooler! Our first step toward this goal was to remove the intercooler so we could collect all the data points we needed. All front-end components were then removed from the truck to provide access.

Factory 6.7L components removed

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Mishimoto Dodge 6.7L Cummins Aluminum Radiator

Many of you may be following our other write-up regarding the development of our intercooler for the 2010-2012 6.7L Cummins. Along with designing and testing an incredibly efficient intercooler, we also worked to improve the engine cooling efficiency by crafting a performance aluminum radiator. A typical enthusiast may be wondering, why would I want to upgrade my radiator? Couldn't I spend that money on modifications that make my truck faster, louder, and more fun? Possibly, but keep in mind the benefits of an aluminum radiator upgrade. First, the improvement in reliability is a huge factor for many of our consumers. The factory radiator is constructed from an aluminum core mated to plastic end tanks. The connection point uses a rubber gasket which is then