On an Indy car, these super-lightweight compressors (with magnesium housings and turbines built from thin-wall stainless-steel investment castings) made high volume at a low pressure (tailored around a boost-limit rule and pop-off valve) via more clearance in the wheel housing interface. With tightened clearances for drag racing, they make crazy boost while maintaining sufficient airflow. Killer turbos like this allow for the four turbo setup to work amazingly, but you could still make the concept work with available turbos--the tough part is packaging and plumbing.