vibration/shudder at 70 - possible alternatives (other than wheel balance?)

[juliemac57@hotmail.com (Julie Macfarlane)]

Jeeze if we are talking Texas, wacha gonna hit? Cactus?



Julie Macfarlane
Menlo Park Research & Development
Internet Application Developer
www.menloparkrandd.com
www.montgomeryweb.org
Amsterdam NY





>From: "ATS - Patrick Bureau" <txrocco@sbcglobal.net>
>To: "Julie Macfarlane" 
><juliemac57@hotmail.com>,<roccnroll@hotmail.com>,<kcollins1@socal.rr.com>,<scirocco-l@scirocco.org>
>Subject: RE: vibration/shudder at 70 - possible alternatives (other than 
>wheel balance?)
>Date: Tue, 22 Apr 2003 11:04:35 -0500
>
>The sign says 60, seems it mean Minimum in texas... most drive 80-95 at all
>time...
>common down , show ya how to weave in 5 lane traffic at 90mph
>
>ATS - Patrick Bureau - txrocco@sbcglobal.net
>
>
>=>-----Original Message-----
>=>From: Julie Macfarlane [mailto:juliemac57@hotmail.com]
>=>Sent: Tuesday, April 22, 2003 10:51 AM
>=>To: txrocco@sbcglobal.net; roccnroll@hotmail.com;
>=>kcollins1@socal.rr.com; scirocco-l@scirocco.org
>=>Subject: RE: vibration/shudder at 70 - possible alternatives (other than
>=>wheel balance?)
>=>
>=>
>=><message>
>=>This is this the thought police.
>=>You have exceded all of the road speeds for the United States.
>=>Please surrender yourselves to the local speed shop.
>=></message>
>=>
>=>
>=>
>=>Julie Macfarlane
>=>Menlo Park Research & Development
>=>Internet Application Developer
>=>www.menloparkrandd.com
>=>www.montgomeryweb.org
>=>Amsterdam NY
>=>
>=>
>=>
>=>>From: "ATS - Patrick Bureau" <txrocco@sbcglobal.net>
>=>>To: "Drew Teague"
>=>><roccnroll@hotmail.com>,<kcollins1@socal.rr.com>,<scirocco-l@scir
>=>occo.org>
>=>>Subject: RE: vibration/shudder at 70 - possible alternatives (other than
>=>>wheel balance?)
>=>>Date: Tue, 22 Apr 2003 09:21:33 -0500
>=>>
>=>>the prowler has 205-50-15 and it occured around 79-84MPH
>=>>the daily driver has 185-60-14 it occured 76-80MPH
>=>>
>=>>humm... I think we are on something..
>=>>
>=>>ATS - Patrick Bureau - txrocco@sbcglobal.net
>=>>
>=>>
>=>>=>-----Original Message-----
>=>>=>From: scirocco-l-admin@scirocco.org
>=>>=>[mailto:scirocco-l-admin@scirocco.org]On Behalf Of Drew Teague
>=>>=>Sent: Tuesday, April 22, 2003 8:52 AM
>=>>=>To: kcollins1@socal.rr.com; scirocco-l@scirocco.org
>=>>=>Subject: Re: vibration/shudder at 70 - possible alternatives
>=>(other than
>=>>=>wheel balance?)
>=>>=>
>=>>=>
>=>>=>>My Integra with the problem that turned out to be CV had its problem
>=>>=>>between about 37-43 mph - a fairly small, very specific speed
>=>range and
>=>>=>>never outside of it.
>=>>=>>
>=>>=>>--
>=>>=>>Kevin Collins
>=>>=>
>=>>=>Well, I would think a problem like this would occur when the
>=>>=>revolution of
>=>>=>the CV's etc was sympathetic with the frequency of whatever is
>=>>=>vibrating.
>=>>=>It would climb when it gets close, peak, then drop out as you
>=>accelerate
>=>>=>through.  If you went fast enough, it would probably reoccur in
>=>>=>the next 1/2
>=>>=>division of the frequency (I think... It's been a while since physics
>=>>=>class...)  I know there is a principle concerning this.  I apply it to
>=>>=>guitar playing with the use of harmonics..
>=>>=>
>=>>=>If the same item would be causing the vibration (we're ASSUMING at 
>this
>=>>=>point) in all Rocc's, different cars would have vibration
>=>>=>occurrences at a
>=>>=>slightly different range of speeds, due to different tire
>=>sizes.  (bigger
>=>>=>tires have greater speed at same RPM than smaller tires)
>=>>=>
>=>>=>With 195 50 R15's, mine peaks at around 75-77 mph
>=>>=>
>=>>=>
>=>>=>**Drew Teague**
>=>>=>Harrisburg, PA
>=>>=>
>=>>=>'84 8v Rocco --  "Bruise"
>=>>=>'85 BMW 318i
>=>>=>
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>=>>=>Scirocco-l@scirocco.org
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>=>>
>=>>
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>=>e
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