Quote:
Originally Posted by Bill Verburg
All the gears in the /30 except first and second are shorter and all are closer together to minimize engine rpm drop w/ shifts
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When gears are closer together it is very clear to me that greater acceleration can be achieved. Since rpm drops are smaller, the engine can be kept at high rpm where more power is produced and, as a consequence, more energy from the engine can be converted to kinetic energy, i.e. speed.
What I'm trying to wrap my head around is the plot you shared earlier where a change in OD of the tyres means that all ratios are shorter but not closer together: rpm drops between neighbouring ratios remain the same. I have coloured the plot you shared earlier to highlight how the larger diameter tyres (yellow) result in greater thrust at some speeds while the smaller diameter tyres (blue) have more thrust at other speeds.