COMBINING a turbocharger with the diesel engine has proved to be a formideable combination. However, the turbocharged (forced) Induction system on HD Turbo-Diesel vehicles can produce more residual heat than the combustion process itself, presenting new heat rejection challenges. In some conditions, the turbo compression process can be notoriously inefficient, leading to intercooler heat overload. This was really seen in the 2004 introduction of variable vane technology. This section is to help with understanding how your forced induction system can be improved, so that it will work with optimum efficiency. Learn how to get the most from your stock variable vane turbocharger when the factory limits its ability with unnecessary restrictions. Concepts like “Thermal Feedback” and “Induction Overhaul” are introduced here, but don’t let that scare you. Easy to understand, they will soon be household terms.
Expanding this understanding, the value of evaporative cooling is also explored in this section with the introduction of I-FOG method of variable intercooling, especially valuable in heat soak conditions.
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Mouthpiece and IOH Kits
“ …After your IOH kit was installed I noticed my peak boost #’s to never get past 25 lbs, so I was surprised to see the boost climb so fast but to peg the gauge at 30 lbs. I was unaware the stock turbo could do this. I have also limped my trans for the first time yesterday while towing on the 3rd setting (bumper hitch flatbed weighing 4500lbs maybe) and then again tonight playing around on the 4thsetting not towing. I had just changed the fuel filter and engine oil but did not have an Allison spin-on(but will be getting more shortly) at the time. The truck has just over 119k on it and I have driven it since 60k and have had my Hypertech installed since 65-70k on various levels. …I just wanted to give you the honest opinion and findings from your kit.”
Matt Schulte