birt
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| posted on 18/10/05 at 07:27 PM |
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Shock Absorber Diameter - Why buy the bigger ones?
Can anyone clear this up for me..
It is normal to use either shocks made for 1.9" diameter springs or shocks made for 2.25" diameter springs. Most companies (AVO, Spax,
etc) make shocks to suit both.
My question is what is the difference? And more specifically, why would anybody buy the larger, more expensive, heavier units over the smaller
ones???
Cooling maybe?
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flak monkey
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| posted on 18/10/05 at 07:42 PM |
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Not sure. But i dont see any reason why 1.9" ones wouldnt be more than enough on a locost considering how light they are....
Someone wil probably come up with a reason why not though....
Sera
http://www.motosera.com
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desyboy
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| posted on 18/10/05 at 08:42 PM |
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2 1/4 springs normally fit modified suspension legs like ford struts
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andygtt
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| posted on 18/10/05 at 08:50 PM |
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I think there are more spring rates easily available for the the 2.25.... although probably not an issue for light cars like ours.
Andy
please redefine your limits.
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steve_gus
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| posted on 18/10/05 at 09:35 PM |
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there is, as the last poster said, a much bigger range of springs, and they go to higher ratings - the smaller sizes ends at about 400lbs - which
should be ok ofr a locost!
atb
steve
http://www.locostbuilder.co.uk
Just knock off the 's'!
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NS Dev
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| posted on 19/10/05 at 11:55 AM |
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quote:
Originally posted by andygtt
I think there are more spring rates easily available for the the 2.25.... although probably not an issue for light cars like ours.
exactly the reason I am using 2.25" coil overs, I allready have heaps of 2.25" springs, the shockers cost no more and they are alloy
protech ones sobloody light anyway.
If the damper body is bigger there will also be more oil in it so postponing damper fade for longer too.
(though a lot of manufacturers use only one body size and just fit different platforms to it)
[Edited on 19/10/05 by NS Dev]
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britishtrident
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| posted on 19/10/05 at 03:13 PM |
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Because of torsional stress-strain considerations 1.9 ID springs are more likely to suffer from sag and fatgue than a 2.25" ID of the same
rate.
A Coil spring is really just a torsion bar in the form of a helix -- a 1.9" spring has a short effective length of bar in torsion than a
2.25"
[Edited on 19/10/05 by britishtrident]
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