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Old 10-27-2001, 02:24 AM   #1
Scooby Specialist
Member#: 4520
Join Date: Feb 2001
Location: LAS VEGAS
93 STi V.4 RA

Default Vibration 80-100MPH

I get a vibration somewhere between 80-100MPH. It feels like the drivetrain is out of balance. Is this normal? Does anybody else have this quirk? Thanks.
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Old 10-27-2001, 02:29 AM   #2
Scooby Guru
Member#: 6551
Join Date: May 2001
Chapter/Region: MWSOC
Location: Carol Stream, IL
'01 GC8 Dinged STM
'09 Concours 14 ABS Black


if it was driveline i'd expect you'd see it more between 55-65....have you had your tires high speed blananced??

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Old 10-27-2001, 03:22 AM   #3
Eric SS
Sooby Guru
Member#: 1914
Join Date: Jul 2000
Chapter/Region: SWIC
Location: 2014 Q60S, 2016 Chevy SS
2000 2.5RS w/ EJ22T
swap and N20. gone. : (


You might want to post htis in the general forum to see what responses you get. I haven't riven my car in such a long time I don;t even remember anything about driving it

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Old 10-28-2001, 04:03 PM   #4
Scooby Specialist
Member#: 10921
Join Date: Oct 2001
Location: S.W. Florida
04 04 STi
12.8 @ 105 mph


How many miles on the current tires. Most vibrations are a result of uneven tire wear or a tire that is out of balance.

I had brand new tires put on my z28 and it had a vibration at 80mph. I had the tires check out and put on a computerized balancer and the tires where not in balance. This was a flaw in the tires themselves. The were made that way and couldn't be balanced perfectly.

I also had a bad vibration at speeds of 90mph + in my z28 when I had a crack housing around the tranny. I cracked it on a dyno when the stapped my car down to hard. So it is very possilbe to have a vibration coming from the tranny/driveshaft but thats usually not the case.
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Old 10-28-2001, 06:34 PM   #5
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Member#: 1109
Join Date: Mar 2000
Chapter/Region: MAIC
Location: Reston, VA
1999 Suzuki Samurai


The speed linit is 75 mph and below in most places.

You should not be experiencing this vibration.

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Old 10-28-2001, 09:18 PM   #6
Scooby Specialist
Member#: 1454
Join Date: May 2000
Location: Wyoming
2000 2.5 RS-T


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Old 10-28-2001, 09:48 PM   #7
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Member#: 1170
Join Date: Mar 2000
Chapter/Region: BAIC
Location: San Jose, CA
2005 STi


i used to have this weird ass vibrating feeling when i was around 60+mph. it made me scared to drive the car. i checked out the suspension and there was one bolt that was loose. it was the bolt holding the a-arm and the brakes together. when i tightened them both (driver and passanger on the front) the car felt WAY better. it allowed me to regain the confidence i had lost in the car.

check it out, it could be the same problem...never know.

good luck. you could also always take it to the dealer.
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