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Re: [Land-speed] Fw: Magnesium

To: "Ed Weldon" <23.weldon@comcast.net>, <land-speed@autox.team.net>
Subject: Re: [Land-speed] Fw: Magnesium
From: "Dave Dahlgren" <ddahlgren@snet.net>
Date: Mon, 16 Jun 2008 07:41:45 -0400
The difference between sprung and unsprung weight is wildly different.. 
Unsprung weight is a very big deal compared to sprung weight.
Dave
----- Original Message ----- 
From: "Ed Weldon" <23.weldon@comcast.net>
To: <land-speed@autox.team.net>
Sent: Sunday, June 15, 2008 9:39 PM
Subject: [Land-speed] Fw: Magnesium


> Fwd to list with edits
> ----- Original Message ----- 
> From: "Ed Weldon" <23.weldon@comcast.net>
> To: "Doug Odom" <dlodom@charter.net>; <sardatech@yahoo.com>;
> <land-speed@autox.team.net>
> Sent: Sunday, June 15, 2008 6:38 PM
> Subject: Re: [Land-speed] Magnesium

<Snip....>

>> Some extra cooling may be in order but for sure the hardware has to be
> able
>> to live under the track conditions.  Time you add that extra hardware
> you'd
>> have more weight than the difference between the aluminum and the mag
>> housings.  And departing from conventional wisdom on setting up the
> preload
>> and bearing press fit is a potentially expensive test program. Sounds to
> me
>> like the easiest answer is to off the mag quick change housing and 
>> replace
>> it with aluminum.  If the extra weight is a problem put the driver on a
>> diet.  Could probably do well with a 10 pound weight loss.
>> Yeah, Tom.......I'm not a stakeholder here; just a source of background
>> noise....
>> Ed
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