Banks Techni-Cooler® Systems |
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“Why Big Density Makes a Big Difference.”
Unlike gasoline engines that throttle by air, a diesel engine throttles by fuel. Therefore, a diesel computer tuner will add more fuel to the engine, creating greater power. The misconception here is that a tuner is all you need. And that’s a huge mistake. This is because the tuner is only part of what makes power in diesel applications. “Air” is the other half of the power equation. Or, more specifically, “air density,” which is the weight of air in a given volume measured in pounds per cubic feet. In other words, the more a cubic foot of air weighs, the more oxygen there is in the air. |
“The Banks intercooler looks similar to the factory unit and is a direct replacement, but it's a far more efficient unit. That's because it's much thicker, with more surface area for improved heat transfer.” - Diesel Power Magazine
Insufficient Cooling
Increasing a diesel's fuel flow without also adding more air results in incomplete combustion, black smoke, wasted fuel and lost horsepower. It also builds hotter exhaust gas temps (EGTs), causing your tuner to "temp out" and pull back power. With adequate air, the higher oxygen content allows fuel to properly combust, increasing power without smoke or high EGTs. To get more oxygen to the engine, you need to increase the density of the air. Turbochargers increase airflow, but pressurizing the air raises air temps substantially, killing air density.
Banks Techni-Cooler® -Density makes a difference!
The solution: larger, more effective intercoolers substantially lower boost air temps. The cooler, denser, more oxygenated intake air allows complete fuel combustion, improving fuel economy and producing lower EGTs. If EGTs never rise to the level where the tuner limits fuel delivery, all the additional power is always available. Lower EGTs also help to reduce the thermal load on the engine and its cooling system, which keeps them running cooler as well. Improving airflow and air density makes a lot more power at any EGT than a computer tuner alone would get. Higher continuous power: isn't that what it's all about?
