John,
The Armstrong lever arm damper can be adjusted for bump and rebound (in
isolation and simultaneous). Most tube shocks are not adjustable but those
that are adjustable are generally only adjustable in bump. The Armstrong
unit was once available on-car adjustable. Some tube shocks are adjustable
in bump and re-bound but I think this was a simulataneous adjustment.
The significant advantage the Armstrong unit has over all the commercially
available tube shock kits is in unsprung (and total) weight. For a race car
or a lightweight road car the difference would be significant. The problem
with the Armstrong unit on the front of the Spridget is that it doubles up as
the top suspension link and it is ill designed for this purpose. The
advantage of the Frontline tube shock kit is that it provides a better top
link while introducing negative camber.
I am not convinced that bump and rebound 'adjustability' is of great
significance and I for one would trade any such adjustment for a weight
saving.
I have a front tube shock kit (not the Frontline kit) going spare for a good
home. It is not so good I would sell it (but the postage.....) but neither
so bad I would throw it out with the rubbish.
Daniel1312
]
In a message dated 18/10/00 05:08:06 GMT Daylight Time, helejohn@neteze.com
writes:
<< Hi Guys
Peter, I wholeheartedly agree with you that lever shocks are fine and
superior to any poorly designed, fitted and set up tube system. I do not
agree that lever arms are the best option in this particular case.
As an example, do you know or can you build a lever arm that is adjustable
for both bump and rebound with the simple turn of a screw or knob?
Regards
John J Black >>
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