Gronk
Member
I'm just a newbie at this tractor stuff but not from an automotive standpoint so I'd like to just shed some light on the HP debate.
In gasoline engine terms, 3hp is not much. By the time you convert that into torque, you end up on the short side. Diesel engines are much different however. A 30 hp diesel can believably have in excess of three times the amount of torque as it does horsepower. So 3hp in this case can legitimately be in the neighborhood of 9-12 more ft-lbs of torque and that can be significant.
When using your tractor you are most likely not using all the potential of 26hp when doing anything (100% output all the time) but you are most certainly using all of the torque the engine can provide at some times. (100% of torque output when the load suddenly increases) In heavy snow for example, the extra torque can prevent the engine from bogging down. With a lesser engine you would need to slow down and let the engine spin back up to peak output RPM before continuing; kind of like when your lawn mower chokes on thick grass. More HP is more work over time, more torque is more work at any one instant. If said lawn mower had enough torque not to bog in the thick grass, you could keep working at the same speed through it and wouldn't even be aware that you were using more of the engine's output.
A diesel engine's trump is its torque curve, the more the better.
Sean
In gasoline engine terms, 3hp is not much. By the time you convert that into torque, you end up on the short side. Diesel engines are much different however. A 30 hp diesel can believably have in excess of three times the amount of torque as it does horsepower. So 3hp in this case can legitimately be in the neighborhood of 9-12 more ft-lbs of torque and that can be significant.
When using your tractor you are most likely not using all the potential of 26hp when doing anything (100% output all the time) but you are most certainly using all of the torque the engine can provide at some times. (100% of torque output when the load suddenly increases) In heavy snow for example, the extra torque can prevent the engine from bogging down. With a lesser engine you would need to slow down and let the engine spin back up to peak output RPM before continuing; kind of like when your lawn mower chokes on thick grass. More HP is more work over time, more torque is more work at any one instant. If said lawn mower had enough torque not to bog in the thick grass, you could keep working at the same speed through it and wouldn't even be aware that you were using more of the engine's output.
A diesel engine's trump is its torque curve, the more the better.
Sean