On my antique 6.2 NA diesel torque is almost constant from 1200rpm through about 2500rpm with a very very gentle curve up going to 1850 then slowly back down, drops like a rock going past 3k and prior to 1200
This means MY HP is almost linear with RPMs, I would expect turbos to gain torque as RPMs increase as opposed to stay the same, but just a guess.
In other words the HP curve would be exaggerated much more than my NA due to the turbo spooling up as motor RPMs increase.
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