Quote:
Originally Posted by toast
I constantly hear this convention batted around that low end torque is what breaks/bends rods or that the 'hit' of a turbo down low does it.
That makes zero sense from a physics standpoint. Every two engine revolutions any given rod will go from almost no load to full load on the power stroke. No matter how fast your turbo hits it can't cause a delta faster than that. I also don't see how having higher torque down low could be worse than having it up high.
Someone explain why I'm wrong.
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My understanding is it isn't necessarily where the torque comes in that is the issue. It has to do with engine load.
The theory *from my understanding* is that high torque combined with high load at low RPM is going to have a higher chance of breaking/bending a rod than if you are at a higher RPM since engine load is typically lower at higher RPM