All in One: A/R, Compressor Maps, Turbo Lag, Surge, Twin Scroll, VGT, Wastegate +more

This is a video designed to save you countless hours of research if you want to understand turbo specs and features and if you’re facing a dilemma when turbocharging a naturally aspirated engine or upgrading an already turbocharged engine. This video is aimed at persons who already have a basic understanding of the operating principles of a turbocharger and want to dive deeper and be able to confidently compare two different turbochargers and also understand how modifying different parts of a turbo such as the compressor or turbine wheel or the A/R of a compressor or turbine housing will impact performance. The video also explains various turbo features such as twin scroll, VGT (variable geometry turbo) as well as parts such as wastegate (internal and external) as well as actuators, bearings, and much more. This video also covers concepts such as blade design and aerodynamics, Boost Lag and Boost Threshold, and pressure ratio and explains how to easily and confidently read compressor maps. All super-condensed into just 35 minutes. Support the channel by shopping through this link: Patreon: Become a member: Sub-Channel: Here are the chapters and their time stamps: 00:00 A/R 04:18 Boost Threshold 05:55 Bearings 08:23 CHRA 09:07 Inducer and Exducer 13:15 Blade Design 16:00 Materials 17:16 Flange 19:00 Pressure Ratio 20:15 Surge 22:05 Compressor Map 26:50 Twin Scroll 28:47 Wastegate 31:21 VGT As you can see the chapters are not in true alphabetic order. Instead, the video prioritizes first the introduction of more simple concepts, that can be understood independently and then introduces more complex concepts and topics and explains how the previous, more simple concepts impact these more complex ones. For example, A/R is introduced first as it is simply the geometric expression of turbine or compressor housing size. Boost Lag and Boost Threshold is introduced after this and then it is explained how changes in A/R impact boost lag and boost threshold. The same thing goes for exducer and inducer sizes and trim calculations together with blade numbers, splitter blades and other turbo wheel features as well as compressor surge. The effects of these features and their changes are then demonstrated in the compressor maps section. The video does not explain how a turbo works, in case you need the fundamentals of the operating principles that’s here: Here’s boost control explained in more detail: Turbo flutter and blow-off valves in more detail: Practical video that shows everything that needs to be done to turbocharge an NA engine: I believe this video makes the Boost School series very comprehensive as I have now covered pretty much all the points of turbocharging and boost and cars. We have both the theoretical side as well as the practical side and all the key concepts have now been included, with key concepts such as turbo flutter, blow-off valves, boost control, twin-turbo (parallels, sequential, compound) receiving dedicated videos. Project Underdog covered all the practical sides, everything from turbo manifolds and required parts, to the installation itself as well as ECU wiring and basic ECU tuning.I even covered the history of turbocharging :) A special thank you to my patrons: Daniel Pepe Brian Alvarez Peter Della Flora Dave Westwood Joe C Zwoa Meda Beda Toma Marini Cole Philips #d4a #boostschool