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Message: [QUOTE="Zeb, post: 1521989, member: 30304"] Read my thoughts on your other thread. I knew you had a 91mm Garret on there, but somehow got the idea you were going back to a single turbo, my mistake. Are you wanting quicker response down low, and lower drive pressure up top? I don’t think a cam is really going to “fix” those issues. In my experience, turbine wheel and turbine housing choice has the biggest influence on spoolup within a given frame size. I’ve run a bunch of the SXE 62, 63, and 64.5’s on trucks ranging from 400-600 hp, all with the 68mm turbine, and either the .83, or the .91 T-4 housings. I’ve not used the 73mm turbine, or a T-3 housing. Smaller than the 64.5 I don’t see much point in running the 73mm turbine IN MOST APPLICATIONS, and the 64.5 you can go either way with the turbine depending on the application. I don’t think the 68 mm turbine is a good choice for any diesel application on the 66 and 69. [/QUOTE]

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