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| Zinke Member Since: 27 Jan 2009 Location: Scunthorpe Posts: 670   
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Just had a quick look at the Iron Man site and looks like they are all springs that give a lift?
Pete. |
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8th Jan 2011 10:31pm |
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| bm52 Member Since: 04 Apr 2010 Location: Kent Posts: 2189 
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i had great difficulty finding out details on the springs, in the end i trusted my local Indie and various comments on forums. as far as dual rate goes all i can tell is my very scientific test consisted of me putting the old and new spring side by side on the ground and pushing it down and then standing on them. [i weigh 100kg] they both went down at a similar rate at first and then stiffened. the HD more so. by this very technical and scientific test i came to the conclusion that the new road springs MAY be dual rate. obviously not a very conclusive test but the best i could come up with. 
below is all the technical info i could find, example for 1 standard and 1 HD spring. note the difference in the weight between them! the metal spring on the HD is noticably thicker Part No: RKB500280 Brand: LAND ROVER Description: Spring Recommended Quantity: 1 Dimensions: 0.15 m x 0.39 m x 0.15 m Weight: 5.13 kilo Model Engine Year Qualifying Text DEFENDER Td4 2.4 2007 - 2009 90 Drivers 3 door Station Wagon Red Green Red Part No: RKB500310 Brand: LAND ROVER Description: Spring Recommended Quantity: 1 Dimensions: 0.15 m x 0.39 m x 0.15 m Weight: 6.37 kilo Model Engine Year Qualifying Text DEFENDER Td4 2.4 2007 - 2009 90 Passengers Heavy Duty Green Yellow White BM52 |
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8th Jan 2011 11:47pm |
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| Zinke Member Since: 27 Jan 2009 Location: Scunthorpe Posts: 670
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Sorry should of said how to tell too! If you look at the coils of the spring, are they all the same distance apart (excluding the first and last turn of the spring) or are they tighter together at one end then the other? Thanks Pete |
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8th Jan 2011 11:52pm |
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| BigMike Member Since: 13 Jul 2010 Location: Lancashire Posts: 2253
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Pete, the iron mans will give a small lift by virtue of the increase in stiffness. any "lift" they give does not affect UJs etc etc.
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8th Jan 2011 11:54pm |
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| Zinke Member Since: 27 Jan 2009 Location: Scunthorpe Posts: 670
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Thanks for the info but im really not looking for a stiffer spring, looking for a more comfy ride down the farm tracks. Thanks. Pete. |
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8th Jan 2011 11:56pm |
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| bm52 Member Since: 04 Apr 2010 Location: Kent Posts: 2189
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from memory the spring coils looked even on the stand road springs.
if you have a Puma i would suggest the 2400kg springs, much better on bumpy tracks but still firmer that my old 300 which probably had worn spring, shocks, bushes etc. i also found that the tyre pressure makes a big difference on my 235 BFG ATs. i tried the rears at 30psi [had too much tyre wall bounce], similar with 35. settled on 38 which is the handbook recommendation. BM52 |
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9th Jan 2011 12:22am |
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