Quote:
Originally Posted by edx1
Strange, the gear ratio's on the ZF 6HP biggest gap is really 1st to 2nd... I guess if the X1 starts in 2nd in D the gap from 2nd to 3rd would stand out more as 3-4, 4-5, and 5-6 as 3+ are fairly evenly spaced.
4.71 1st
2.34 2nd
1.52 3rd
1.14 4th
0.87 5th
0.69 6th.
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That's the direct ratios for each gear - what we experience when shifting gears is the higher order function, i.e. how much they change relative to each other (I almost wrote the differentials of the differentials, but caught myself
)
Anyhow, see this plot of the ratios:
The biggest discrepancy between the smoothed spline curve and the actual points is between the 2nd and 3rd gear, which I think leads to the feeling that there's a missing gear.
It's how they're spaced, with the emphasis on the high gears. Which certainly makes sense for fuel economy, but a shift (no pun intended) towards closer spacing for the low gears might have chopped off a little on the 0-60 end, and made for a more spirited drive. But then again, I'm no expert either.