engine harshness at high revs

RCZ · 06-29-2009, 10:23 PM

maybe 6mt is a lot worse. I can feel it in the floor, shifter, steering wheel. I've noticed the transmission mounts need some serious work too. The mounts are too soft.

wstar · 06-30-2009, 09:48 AM

Quote:

Originally Posted by RCZ

maybe 6mt is a lot worse. I can feel it in the floor, shifter, steering wheel. I've noticed the transmission mounts need some serious work too. The mounts are too soft.

Hmmm, I tried to pay better attention this morning, but no I don't think I'm getting vibration like you describe. It could be that your vibration is largely coming into the body though the clutch/transmission, and my torque converter is eating it up instead on the 7AT.

zZSportZz · 06-30-2009, 10:02 AM

Quote:

Originally Posted by RCZ

maybe 6mt is a lot worse. I can feel it in the floor, shifter, steering wheel. I've noticed the transmission mounts need some serious work too. The mounts are too soft.

I have a 6MT and the whole car vibrates and almost feels like its going to rip apart at any moment lol (slight exageration) at high rpms. You really do feel it in the floor, steerng wheel, shifter...even the seat to some extent.

mrmixitup · 06-30-2009, 02:27 PM

Quote:

Originally Posted by RCZ

maybe 6mt is a lot worse. I can feel it in the floor, shifter, steering wheel. I've noticed the transmission mounts need some serious work too. The mounts are too soft.

If the mounts were firmer, wouldn't you be getting alot MORE vibration? Engine movement would be directly transfered to the entire chassis.

RCZ · 06-30-2009, 02:34 PM

Quote:

Originally Posted by mrmixitup

If the mounts were firmer, wouldn't you be getting alot MORE vibration? Engine movement would be directly transfered to the entire chassis.

Yes sir, but thats not the reason why I want harder mounts. I just feel the transmission mounts flexing and the shifts could be a lot more "positive" with some bushings. The car will feel a little crisper response if you remove the flex in the tranny.

VTalumni · 06-30-2009, 02:37 PM

Quote:

Originally Posted by mrmixitup

If the mounts were firmer, wouldn't you be getting alot MORE vibration? Engine movement would be directly transfered to the entire chassis.

Yeah thats true. And usually with stiffer mounts you feel it more at idle. Since it seems like this problem isnt noticed at idle, the harshness must be more than just the mounts.

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06-29-2009, 10:23 PM	#1 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	maybe 6mt is a lot worse. I can feel it in the floor, shifter, steering wheel. I've noticed the transmission mounts need some serious work too. The mounts are too soft.