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Originally Posted by boneheaddoctor
Yours was not running right. My 3/4 ton 4X4 will smoke the rear tires in two wheel drive. And they have WAY more torque than the 617, the HP figures are lower than you would think as its redline is at a lower RPM and its peak torque is too. But still higher than the 617.
It will eat my 300SD W116 alive in acceleration.
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You are correct about the torque - An OM603, with three liters of displacement, equals the GM 6.2 Diesel with 150Hp +/- horsepower but the GM 6.2 makes the most of it's 3.2 liter displacement to enjoy a 50 lb/foot advantage over the Mercedes engine.
I realize I'm comparing a turbo to a non-turbo setup but I'm sticking to my observation - the 6.2 has a very low power output as a function of engine displacement. No real surprise there.