Twincharging[1] (belt-driven supercharger + exhaust-driven turbo(s)) is also a way to reduce lag, as are variable-vane turbos (less aggressive pitch (less load

Twincharging[1] (belt-driven supercharger + exhaust-driven turbo(s)) is also a way to reduce lag, as are variable-vane turbos (less aggressive pitch (less load) to spool up quickly before adjusting to a more aggressive pitch to increase boost). Another more gangster option is the old rally trick of letting some air/fuel mixture into the hot turbo to cause it to ignite and spin the turbo, aka ALS[2]. This is the popping you can hear in older rally cars when they're decelerating / going around turns at lower RPMs. 1. http://en.m.wikipedia.org/wiki/Twincharger http://en.m.wikipedia.org/wiki/Twincharger VW TSI engines use this, and I thought Mercedes did too on an SUV, but I can't seem to find that anywhere. 2. http://www.rallycars.com/Cars/bangbang.html http://www.rallycars.com/Cars/bangbang.html