4500 RPM or above with short shifter

CBRich · 06-26-2009, 08:17 PM

Definitely strange. You didn't chicken out and stop screwing too soon did you? Make sure that knob is on there nice and tight. Just keep turning. The others may not have the same issue simply due to the weight they have.

Modshack · 06-26-2009, 08:24 PM

iT's a weight and damping issue. Characteristic of a lot of short shifters..

theDreamer · 06-26-2009, 09:38 PM

Quote:

Originally Posted by CBRich

Definitely strange. You didn't chicken out and stop screwing too soon did you? Make sure that knob is on there nice and tight. Just keep turning. The others may not have the same issue simply due to the weight they have.

Definitely not, started using a wrench to tighten it down.
Interesting modshack, any thoughts on how to resolve this? Maybe stuff something into the bottom (or top I guess) of the shift knob to create a sound barrier?

Modshack · 06-26-2009, 09:50 PM

Quote:

Originally Posted by theDreamer

Definitely not, started using a wrench to tighten it down.
Interesting modshack, any thoughts on how to resolve this? Maybe stuff something into the bottom (or top I guess) of the shift knob to create a sound barrier?

The problem is that there is damping built into the base of the stock shifter that absorbs some of the Vibration and potential rattle. I don't think the B&M has that. When you change the resonant weighting of the knob you get vibration. It's not in the knob, but in the mechanism. The more precise tolerances of the B&M accentuate it. The Z does have a buzzy shifter to begin with. I had exactly the same problem with a Corvette short shifter I installed. As I recall last time I had the boot up, the stocker has a big base that probably has damping characteristics just like the vette...I don't have a pic, but it is similar to this stock Corvette unit:

06-26-2009, 08:24 PM	#2 (permalink)
Modshack A True Z Fanatic Join Date: Mar 2009 Location: Greenville NC Posts: 2,883 Drives: 370Z Sport Rep Power: 978	iT's a weight and damping issue. Characteristic of a lot of short shifters.. __________________ Steal my car! (SOLD)...Now Porsche Cayman S Oil Cooler DIY: Here!

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06-26-2009, 08:17 PM	#1 (permalink)
CBRich A True Z Fanatic Join Date: Apr 2009 Location: SC Posts: 2,464 Drives: 370Z Rep Power: 546	Definitely strange. You didn't chicken out and stop screwing too soon did you? Make sure that knob is on there nice and tight. Just keep turning. The others may not have the same issue simply due to the weight they have.