I think the power-to-weight ratio figure gives something along similar lines to what L'escargot is driving at.
To calculate torque at the wheel you would need rpm. When you apply rpm to torque you then get back to power.
To use some real world numbers.
1.6 HDi (1560 16v turbo)
Power 111PS
Torque 285Nm (Specific Torque 182.69Nm/litre)
Power-to-weight 72.13bhp/ton
1.6 (1598 16v)
Power 120PS
Torque 160Nm (Specific Torque 100.13Nm/litre)
Power-to-weight 79.73bhp/ton
Last edited by: gmac on Thu 25 Mar 10 at 20:06
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