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Re: [Fot] Motor mounts, round or square?

To: timmurph@fastbytes.com, fot@autox.team.net
Subject: Re: [Fot] Motor mounts, round or square?
From: N197TR4@cs.com
Date: Wed, 29 Aug 2007 21:16:41 EDT
Tim

I use the round ones, but I also have the Torque Reaction Arm in place.  This 
is an OEM part used on the TR4. 

It limits the travel of the engine when going from extreme braking to full 
throttle.  There is absolutely no question that it does, as I removed mine to 
reverse engineer this part to produce it.  The result was bent velocity stacks 
at the next outing.

Subsequently, I think it also reduces the stress on the rear tranny mount.

If anyone needs one, I have a few on the shelf.

Joe




> 
> Last November Gary asked which was the preferred motor mount: the older round
> style or the newer square style.  There was some discussion but the
> round/square question was never answered.  We just broke a motor mount at
> Grattan on the pot hole of the last turn.  So now the question is of more 
> than
> academic interest.  The motor mounts we have are the square ones from Moss 
> and
> we ran four events, including Grattan, before we had the failure.
>     The ones from Cambridge Motor Sports were highly regarded during the last
> discussion but the cost at that time was about $80 compared to about $16 for
> the round ones from Moss.  Any input would be appreciated.
> 
> Tim Murphy
> #317 TR-4
> 

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