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Aren't the two words mutually exclusive in this application? The article currently uses "sequential twin turbo," but many sources on the internet equate "twin" with "parallel" turbo setup. I agree that "twin turbo" sounds like two identical turbochargers working at the same time and equal pressures.
Any arguments to the opposite point of view? 126.96.36.199 (talk) 04:58, 28 April 2009 (UTC)
I totally agree, "twin-turbo" means parallel setup with two identical turbos, and sequential setup is sometimes referred to as "bi-turbo". 188.8.131.52 (talk) 23:11, 21 June 2009 (UTC)
Makes sense but OEM's don't always real twins, "Twin Turbo". And aftermarket companies often call sequential turbos, "Twins". --Dana60Cummins (talk) 00:31, 5 February 2011 (UTC)
This needs to be sorted out. Currently  the article lead starts out Twin-turbo or biturbo refers to a turbocharged engine, in which two turbochargers compress the intake charge. More specifically called "parallel twin-turbos" following this edit.
However the scope of the article currently includes sequential and staged turbos, so the second sentence More specifically called "parallel twin-turbos" is confusing at best and possibly just plain wrong. Or if it's correct then the article probably needs either re-scoping or renaming. Andrewa (talk) 19:00, 24 January 2013 (UTC)