Something tells me it will be better than my usual practice of welding the
plates together. I haven't noticed what Tony Garmey has done for mounts, but
Peyote used to be solid mounts in all three corners. I suspect Tony tossed
that away long ago.
On May 21, 2013, at 5:06 PM, Joe Alexander <n197tr4@cs.com> wrote:
> Thank you very much. Sean has good experience in mold fixture design, thus
the
> ability to produce a somewhat intuitive design to overcome a frequent
> problem.
>
> The mention of "voids" in the design is duly noted for tuning.
>
> So far, the response for product is well past the first 10 that was offered
> and I am sure Sean is mulling over the production quantity for the next
run.
>
> If anyone else wishes to see a picture of the finished product and a
computer
> isometric view of the mechanical parts, just ask.
>
> Thanks again, Terry, for the review of the components and insights we had
no
> prior knowledge of.
>
> Best Regards,
>
> Joe A. WAY TO GO, Sean!
>
> Sent from my iPad
>
> On May 21, 2013, at 6:40 PM, "Enquiries Road & Track"
> <enquiries@roadandtrack.net.au> wrote:
>
>> joe, i think you have answered the question by saying you have not
>> experienced a rise in vibrations with this soft (40 duro) urethane
>> mount.
>>
>> design looks good with what appears to be adequate segregation of the
>> internal metal components. my experience suggests you need at least
>> 5-6 mm of urethane all around the support plates for the bolts. this
>> allows enough internal movement before the urethane goes into
>> compression "lock-up" eg, as the box rocks around on start up).
>>
>> mounts like this are typically "tuned" by changing the location, size
>> and shape of voids cast into the urethane in the lower part. this is
>> the step that most custom mount makers ignore , but what separates a
>> really good design from the rest. this will only come from real life
>> experiences or ideally, from setting up accelerometers on the box and
>> doing tests on various designs.
>>
>> good luck, i'll buy one when ready. keep me in the loop
>>
>> Terry
>>
>>
>>
>>
>>
>> On 22 May 2013 08:48, Joe Alexander <n197tr4@cs.com> wrote:
>>> I sent Terry the design of the A.R.E. Mount. I also indicated that I
> understood his first two paragraphs.
>>>
>>> I asked for a clarification of the third paragraph as I didn't understand
> what he was asking.
>>>
>>> I did share that we experienced no increase in driveline vibration.
>>>
>>> We have not tried this design in our street TRs yet, but have the
> expectation that this 40 durometer rear mount will perform well.
>>>
>>> It is clear that Terry has a very wide range of experience in body and
> frame isolation. There is certainly something to be learned and will be
> looking forward to his reply.
>>>
>>> Any other points of discussion?
>>>
>>> Joe A
>>> Sent from my iPad
>>>
>>> On May 21, 2013, at 4:55 PM, "Enquiries Road & Track"
> <enquiries@roadandtrack.net.au> wrote:
>>>
>>>> Joe
>>>>
>>>> i get involved with urethane & hard rubber mounts on a daily basis.
>>>> my impression of urethane mounts is they are fine in race cars and
>>>> crappy elsewhere as they just don't have the resilience of rubber, so
>>>> they transmit a lot of vibrations that rubber mounts absorb. we have
>>>> experimented here with all sorts and grades of both rubber and
>>>> urethane.
>>>>
>>>> we have removed really hard urethane mounts from modern race/rally
>>>> cars as they been a major factor in fatigue cracking the steel
>>>> bodywork where the mounting plate affixes. notable examples are Toyota
>>>> GT4 and Mitsu Evo lancer, where we have changed to custom rubber
>>>> mounts (harder duro, different voiding compared with factory) and
>>>> totally solved the mount problems
>>>>
>>>> whilst i understand the TR is a lot sturdier than these 2 examples,
>>>> and the same is unlikely to occur, can you please comment on the
>>>> vibration aspects in respect to what you have planned for the TR rear
>>>> mount.
>>>>
>>>> thanks
>>>>
>>>> Terry
>>>> _______________________________________________
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