updraught
Well-known member
https://www.uniquecarsandparts.com.au/how_it_works_suspension
Came across this interesting article on suspension. Even explains the difference between friction shocks and hydraulic.
On friction shocks:
"... Consequently, the resistance of the system to initial movement was at a maximum when it should have been minimal for the best ride; conversely, bigger impacts received a relatively smaller damping effect."
On hydraulic:
"... However, these dampers had the great operational advantage of being speed-sensitive in that the fluid flowed readily in response to leisurely wheel movements but met with increasing resistance - because of the limited opening size - as the rate of wheel travel rose."
Even found an article from Popular Science 1929 on how to adjust the Houdaille shocks ...
https://books.google.com.au/books?id=FigDAAAAMBAJ&pg=PA83&lpg=PA83&dq=houdale+double+acting+shock&source=bl&ots=XU889SV4AI&sig=9fdPQA3yY2oqP43-b3yJog8e8BA&hl=en&sa=X&ved=0ahUKEwjQ_-Ok95vUAhUCj5QKHf2gBLcQ6AEIJTAA#v=onepage&q=houdale%20double%20acting%20shock&f=false
on page 143
So it is most likely the A got hydraulic shocks because the spring size had increased over the T causing a harsh bounce.
Friction shocks probably would have been effective on a lighter car with lighter springs like the T.
Came across this interesting article on suspension. Even explains the difference between friction shocks and hydraulic.
On friction shocks:
"... Consequently, the resistance of the system to initial movement was at a maximum when it should have been minimal for the best ride; conversely, bigger impacts received a relatively smaller damping effect."
On hydraulic:
"... However, these dampers had the great operational advantage of being speed-sensitive in that the fluid flowed readily in response to leisurely wheel movements but met with increasing resistance - because of the limited opening size - as the rate of wheel travel rose."
Even found an article from Popular Science 1929 on how to adjust the Houdaille shocks ...
https://books.google.com.au/books?id=FigDAAAAMBAJ&pg=PA83&lpg=PA83&dq=houdale+double+acting+shock&source=bl&ots=XU889SV4AI&sig=9fdPQA3yY2oqP43-b3yJog8e8BA&hl=en&sa=X&ved=0ahUKEwjQ_-Ok95vUAhUCj5QKHf2gBLcQ6AEIJTAA#v=onepage&q=houdale%20double%20acting%20shock&f=false
on page 143
So it is most likely the A got hydraulic shocks because the spring size had increased over the T causing a harsh bounce.
Friction shocks probably would have been effective on a lighter car with lighter springs like the T.
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