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Install Compound Turbo System (Add-a-Turbo)

2:07
21:28
184.6K views

At 2:07 in

Mark Martin's "Hot Rod" Newell Coach: Huge Power Compound Turbo Cummins & Stories From The Road!

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What happens here

Upgrade the turbocharging system to an 'add-a-turbo' or compound turbo setup. This involves integrating a larger turbocharger to work in conjunction with the existing variable geometry turbo (VGT). The larger turbo handles high-end power and efficiency, while the VGT retains excellent low-end drivability and exhaust braking capabilities. The process requires custom fabrication of piping for the new turbo configuration, adjusting turbo mapping, fuel mapping, and ensuring adequate boost pressure and airflow. Components like the exhaust manifold may also be replaced or upgraded for optimal flow. Utilize chrome and Jet-Hot coating for both aesthetic appeal and heat management.

Goal: Significantly increase horsepower and torque across the engine's operating range.

Tools and materials

  • Chrome Plating — Aesthetic enhancement for various engine components
  • Custom Piping PDI — Connecting the compound turbochargers and the intake/exhaust systems
  • Exhaust Manifold PDI — Optimized for exhaust gas flow to the turbos
  • Jet-Hot Coating Jet-Hot — Thermal barrier coating for exhaust components to reduce heat soak and improve efficiency
  • Larger Turbocharger PDI — Providing additional boost for higher horsepower and torque at top end
  • Variable Geometry Turbo — Retained for low-end drivability and exhaust braking

What they say

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the add a turbo setup. The reason we developed the add a turbo setup that a lot of people don't understand is we let a bigger turbo drive the engine instead of having the smaller or the smaller turbo with a BGT that's very drivable yet on the top end and having high horsepower is very inefficient. So what we do is we change some some mapping around turbo mapping fuel mapping and then we develop the add a turbo that adds more boost has a bigger AR and pumps more air to the engine to make it more efficient. Of course had chrome and jhawk coated a bunch of the different applications that are on it. How much power does it make stock versus

Auto-generated from the video audio.