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Re: Rear suspension

To: Nafzger <nafzger@vtc.net>
Subject: Re: Rear suspension
From: Dave Dahlgren <ddahlgren@snet.net>
Date: Tue, 23 Oct 2001 05:05:47 -0400
I am not an expert either but i will tell you everyone that specs data acq from
me wants the shocks to log in excess of 100 times per second so there must be
something going on... But then there is deal about data that is aquired at a
certain multiple of the signal too. If what you are saying is correct then there
is no downside either if it will never move too. But there maybe gains in the
begining of the run.
Dave Dahlgren

Nafzger wrote:
> 
> Keith,
> God knows I'm no expert on this and I have spent a lot of time anguishing
> over this problem on the two liners I have built.
> I made them both with rigid suspension for three basic reasons.
> 1. Less complex and therefore probably more reliable.
> 2. Lighter and cheaper.
> 3. I can't figure out how to make a suspension that will respond to a 3 foot
> wide dip in the salt.
> Keep me honest on this guys. 60 MPH =88 ft/sec. therefore 240MPH =
> 352ft/sec. Therefore 1/100 of a second = 3.52ft.
> No suspension I am aware of will even begin to move in that time period. It
> will skip right over the depression anyway so I just did not mess with it.
> If I'm screwed up in my logic, let me know and I'll admit liners may be
> different in some ways but we have been very successful with rigid cars.
> P.S. The engine builder and I have both agreed to not go up there and
> embarrass ourselves anymore. Way too many engine problems.
> Howard
> 
> ----- Original Message -----
> From: "Keith Turk" <kturk@ala.net>
> To: <land-speed@autox.team.net>
> Sent: Monday, October 22, 2001 4:28 AM
> Subject: Rear suspension
> 
> > Okay along the lines of the Trans mounting system....   I wanna do the
> rear
> > suspension issues....
> >
> > My thoughts are that a fancy rear suspension to make the car leave the
> line
> > is a Moot point at Bonneville... ( may help you at Maxton or El Mirage )
> but
> > once the car is through the gears it's settled down and the only real
> > advantage of a suspension at all is to maintain the contact patch with the
> > ground....over minor bumps...
> >
> > Joe Timney and I have beat this up at length and I have several idea's on
> > the correct course of action for me....  But I'm curious to hear others
> > thoughts on what they run and WHY?....
> >
> > In other words... what are your theory's..
> >
> > Keith ( Mayf.... what you doing Hiding out... I love your questions...
> > always pointed .... which may not be pleasing to all ... however they are
> > always honest and well thought out )

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