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Non - Specific
Engine Conversion
My tow pig/DD build thread. F350/Cummins 6.7/twins/6R140
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[QUOTE="me2, post: 320307, member: 3825"] Thanks, guys ! Re HE551, I'm looking for boost down low, thus the twin setup. I think an HE551 has like a 76 or 80mm compressor wheel, depending on the model, and I suspect it will surge at the low flows a 6.7 has at 1600 or 1800 RPM. I actually have turbo compressor maps and a spreadsheet for 6.7 air flows and HP to back up this reasoning if anyone wants to see them. Its very nice to see a guy with a tuned 6.4 and another guy using an Allison in his swap offering encouragement. There are many ways to build a truck. [/QUOTE]
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My tow pig/DD build thread. F350/Cummins 6.7/twins/6R140
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