Installed B&M 45163 short shift kit in 370Z yesterday...

miguez · 05-11-2009, 05:30 AM

Hey Minicobra,

I am not 100% on this, but I don't see how a short shifter would help (at least directly) with the synchronization of the gears. All that the short shifter does is reduce the travel length between gear changes at the shifter knob.

The grinding means that first and second gears, at the RPM you are shifting at, are not perfectly synchronized. As I think about this, maybe the heavy flywheel we have in the Z could be part of the problem? When you clutch in at a high RPM in first, the flywheel's momentum carries the RPM too high, to a point where it is so close to red line (or at it) that the synchronization between gears is not ideal? Just thinking out loud. Are you hitting red line when clutching in?

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05-11-2009, 05:30 AM	#11 (permalink)
miguez Enthusiast Member Join Date: Apr 2009 Location: Columbus, Ohio Posts: 359 Drives: '04 Cavalier Rep Power: 182	Hey Minicobra, I am not 100% on this, but I don't see how a short shifter would help (at least directly) with the synchronization of the gears. All that the short shifter does is reduce the travel length between gear changes at the shifter knob. The grinding means that first and second gears, at the RPM you are shifting at, are not perfectly synchronized. As I think about this, maybe the heavy flywheel we have in the Z could be part of the problem? When you clutch in at a high RPM in first, the flywheel's momentum carries the RPM too high, to a point where it is so close to red line (or at it) that the synchronization between gears is not ideal? Just thinking out loud. Are you hitting red line when clutching in?