Hi, Sorry if this is in the wrong thread I'm new to the forums. I was recently talking my mate about how engines produce power and torque and how there's so many factors in it. I mentioned the length of conrod would be a factor but my mate disagreed that it has no effect on torque. To my understanding this is why I see it effects torque. If you have a bolt and you have a short wrench it's difficult to undo the bolt. If you increase the length of the wrench you increase the torque and less force is required. However he made a valid point that the conrod is pushing or pulling the crank not twisting it as it's still linear motion. So with the example of the wrench and bolt does the length of conrod still effect torque in the same way? If not what is the effect of different length conrods I've struggled to come across any decent information online.