[DML] Re: Raising the seat height

["twinenginedmc12" <twinenginedmc12@xxxxxxxxxxxxxxxxx>]

Hello.

Yup, Rob's right.  The studs would be more prone to bending in a 
collision using washers to space up the seat.  

On the other hand, only the force generated by the chair decelerating 
in the collision would be felt by these studs, so it may be that they 
would not break until the deceleration became so abrubt the person in 
the seat was going to be killed anyway.  We won't know for sure 
without a test.  Any volunteers?  I'll pass, I hope.

I second Rob's idea of shimming the track, to lower the stress 
concentration on the fiberglass.  It seems a good idea.

Rick Gendreau


--- In dmcnews@xxxxxxxxxxxxxxx, "Rob Grady" <rob@xxxx> wrote:
>
> Dave & John,
> 
> That is correct but I would not suggest it as raising the tracks 
like that
> could make the mounting studs more prone to bending or breaking in a
> collision. The lack of support would increase bending leverage and 
give the
> seat more built-in inertia in a crash IMHO. Any of the engineers on 
the list
> with theoretical experience in bending force loads and leverage 
effects care
> to confirm or refute this? In any case not many shops would want to 
take on
> the potential liability of doing any modifications to the mounting 
of your
> seats but you're free to do so on your own. If you do raise the 
seat I'd
> suggest at least shimming the tracks so they fully contact the 
floor but I'm
> not recommending it....OK? It's something you might consider anyway.
> 
> Rob Grady,
> 
> P.J.Grady Inc.
> 
> -----Original Message-----
> From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On 
Behalf Of
> Dave Swingle
> Sent: Wednesday, December 28, 2005 1:57 PM
> To: dmcnews@xxxxxxxxxxxxxxx
> Subject: [DML] Re: Raising the seat height
> 
> The quick and dirty way would be to stack some washers under the 
seat 
> on the mounting bolts. If you look under the car you'll see four 
nuts
>








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