Quote: Originally Posted by PROGMH So is the larger turbo first to get the exhaust gas or the smaller one? The info is conflicting. Air comes out of engine into large turbo, which dumps to small turbo, which produces boost into large turbos impeller and then into the cooler and engine yeah? Compound Turbo CHargers explained:- http://www.atsdiesel.com/ats2/templa...029422272&c=36 (http://www.atsdiesel.com/ats2/templates/template_06.asp?p=2029422272&c=36)

Quote: Originally Posted by PROGMH So is the larger turbo first to get the exhaust gas or the smaller one? The info is conflicting. Air comes out of engine into large turbo, which dumps to small turbo, which produces boost into large turbos impeller and then into the cooler and engine yeah? exhaust goes through small turbo, then through big turbo. intake goes in opposite way, big turbo then small turbo, then cooler, then motor, then back into exhaust Some original photos have not been recovered yet.

Ah maybe I was getting confused. Some people were saying the large turbo is first some were saying small is first. Gotcha.

yeah i cant say its always done that way, thats how boost logic does it. never really looked into diesel performance, which is where most of the developement has been. there may be people that do it the opposite way