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Where do you shift your R56?
What rpm do they like to be shifted at when racing?
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Most shift at the top of the torque curve. The ones that don't never seem to keep up.
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I don't drag race, but I am trying to go quick. It depends on the R56 and the gear. The theoretical way to do it is with a torque curve and you have to work out when the added gearing of changing up is less of a disadvantage than falling off the other end of the torque curve.
I have a spreadsheet to do that, and there's also an iPhone ap for it. In a Cooper, its always advantagous to change up at red line. In an 08 Cooper-S, red line from first and second, and slightly under redline for the higher gears. In a 2012 JCW, its red line from first and slightly less with each gear, but the time you change up from 4th its 5900. |
Originally Posted by Btwyx
(Post 3945243)
I don't drag race, but I am trying to go quick. It depends on the R56 and the gear. The theoretical way to do it is with a torque curve and you have to work out when the added gearing of changing up is less of a disadvantage than falling off the other end of the torque curve.
I have a spreadsheet to do that, and there's also an iPhone ap for it. In a Cooper, its always advantagous to change up at red line. In an 08 Cooper-S, red line from first and second, and slightly under redline for the higher gears. In a 2012 JCW, its red line from first and slightly less with each gear, but the time you change up from 4th its 5900. |
Keep in mind if you change too early you will be out of the power band in the next gear. You have to find a compromise.
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On my stock 2006 R53 I would normally shift at around 5500 RPM, this would leave me at about 4500 for the next gear.
If I shifted closer to red line then the next gear would begin around 5500, and the butt-dyno felt like there was less pull starting a gear that high. So far my R59 feels about the same, but to be honest I haven't pushed this car as hard as the R53. Each car is different, a little experimentation is needed to figure out what works best for your car. |
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