Quote:
Originally Posted by Grovsnus
True, but the 35i lacks a 2.5th gear - there's an awful lot of difference between second and third, where I feel it loses at least a tenth or two, even with the wide torque range.
The gear range differential feels like (to me, at least):
1--2--------3---4-----5---6
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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.
In addition, take a look at this chart and info:
ZF 6HP
It appears the ZF 6HP should be more like 1------2----3---4---5---6. The only reason an uneducated person like myself would come up with for it appearing like the biggest gap between gears is 2->3 would be some sort of ecu trait which wouldn't make sense to me.
For the ZF 8HP I had to break it into two graphs as the online tool I found is limited to 6 gears:
ZF 8HP 1-6 ZF 8HP 3-8
It's interesting to see the 8HP runs 65mph at about 1700rpm and the 6HP runs 65mph at 2100rpm. The 8HP gear ratios above 4th seem spaced oddly and must be based on probability for driving at various highway or street speeds to optimize mpg?