Page 1 of 4 123 ... LastLast
Results 1 to 10 of 39

Thread: LR air strut suspension

  1. #1
    Join Date
    Dec 2006
    Location
    Harper Creek
    Posts
    3,313

    Boat Trailer refurb to LR radius arm | air strut suspension

    I'm in the planning phases of another Offroad trailer build.
    This will be another boat trailer for 5m plate alloy boat
    Always I start with the suspension and work up,
    I'm a little bored of triangulated four links from the last two builds so have two competing designs.

    Easy one is radius arms plus a panhard with thoughts to use an air strut.
    I figure that LR have dialled in Offroad durability to their struts and the overweight D3/D4 with front axle weights approaching 2tonne should be perfect for this application.

    Big question is what are the dimensions of a front strut or better still does anyone have a dead one kicking around???

    Kind regards

    Steve
    '95 130 dual cab fender (gone to a better universe)
    '10 130 dual cab fender (getting to know it's neurons)

  2. #2
    Join Date
    Feb 2009
    Location
    Melbourne
    Posts
    1,087
    Sounds like a very inconvenient and horribly expensive way to go, but good luck!!
    Now 2010 D4 3.0 HSE ('James' - just cos)
    Then 2010 RRS TDV8 ('Roger' - Moore I assume...) w traxide DBS, UHF, Cooper Zeons, Superchips remap
    Then 2010 D4 2.7 TDV6 ('Jumbo') w traxide DBS
    First love 2002 D2 TD5 ('Disco Stu')

  3. #3
    Join Date
    Aug 2007
    Location
    Bunbury, WA
    Posts
    1,914
    I think the main issue would be the fact that the strut sits vertically (or close to) whereas on a boat trailer you want a flat suspension setup that does not impinge on the boat envelope? Otherwise the struts are known to be robust and durable.
    Chris


    2014 D4 TDV6
    1954 86" (I'll finish it one day.....)
    1980 Stage 1 v8

  4. #4
    Join Date
    Dec 2006
    Location
    Harper Creek
    Posts
    3,313
    Thanks for thoughts
    On most recent boat trailer with triangulated 4 link the dampers were defender fronts attached at top rear of guard down to axle ... 180lb/in springs at 300mm ride height. Plenty of room under a boat due to the deadrise
    Easier to package suspension than in a camper or box trailer.

    As long as the struts are in the 550mm or so range when at ride height and 200mm or so diameter fitting will be easy

    Ride height adjustability and single package for damper/ spring is the benefit

    If the LR option is too large I'll likely run a coil spring strut???

    S
    '95 130 dual cab fender (gone to a better universe)
    '10 130 dual cab fender (getting to know it's neurons)

  5. #5
    Join Date
    Feb 2008
    Location
    Golden Beach, QLD 4551
    Posts
    673
    Quote Originally Posted by roverrescue View Post
    I'm in the planning phases of another Offroad trailer build.
    This will be another boat trailer for 5m plate alloy boat
    Always I start with the suspension and work up,
    I'm a little bored of triangulated four links from the last two builds so have two competing designs.

    Easy one is radius arms plus a panhard with thoughts to use an air strut.
    I figure that LR have dialled in Offroad durability to their struts and the overweight D3/D4 with front axle weights approaching 2tonne should be perfect for this application.

    Big question is what are the dimensions of a front strut or better still does anyone have a dead one kicking around???

    Kind regards

    Steve
    I have a front strut from my TDV8 Range Rover Sport sitting on the scrap pile. More than welcome to it.

  6. #6
    Join Date
    Dec 2006
    Location
    Harper Creek
    Posts
    3,313
    And on the expense side at about $500 for a pair
    Really not that Exe compared to buying a pair of air springs plus appropriate dampers?

    If I wanted boring and cheap I'd build it with ****ty ALKO components and rebuild every 3 years

    S
    '95 130 dual cab fender (gone to a better universe)
    '10 130 dual cab fender (getting to know it's neurons)

  7. #7
    Join Date
    Jan 1970
    Location
    In my D2a Ripping It Up
    Posts
    10,094
    I think your onto something here and i like your theory for a boat trailer with the ability to raise and lower the suspension for launching and retreaving aswell as ride and durability
    I like thinking out side the square it is all part of being a Real Landy owner
    Dont let the nay sayer`s put you off
    cheers chris


    My Toy 04 D2a Td5 Manual With Lots of Goodie Goodness
    S111 Swb a work in progress

    Two Wheel Fun Factor
    Triumph Sprint St 955i
    Bultaco Tss 250
    Moto Guzzi 650

  8. #8
    Join Date
    Dec 2006
    Location
    Harper Creek
    Posts
    3,313
    Ta Chris - I think it solves a bunch of packaging dilemmas! And should be tough too.

    Trailer will tilt to allow shallow launch retrieve also means axle and suspension can stay out of the water
    Planning on building a frame over the tilt section with RTT on it. Frame will raise for launching and loading but lower to lock boat down to trailer. Thinking of swing out kitchen etc up front in space at bow with storage on other side??

    Next step will be to dust off the CAD and start doodling hence wanting some dimensions...

    On that note Chily I might take you up on your offer but first if not too much hassle just having extended and compressed lengths and max diameter will help planning if it's not too much to ask you to measure your dead strut????

    Regards

    Steve
    '95 130 dual cab fender (gone to a better universe)
    '10 130 dual cab fender (getting to know it's neurons)

  9. #9
    Join Date
    Jan 1970
    Location
    NSW South West Slopes
    Posts
    9,748
    The front shocks don't have much travel - perhaps around 100mm whereas the rears, whilst fully extended are around 50mm longer than the front, have around 200mm of travel. I can get more accurate measurements tomorrow in daylight as I have a few sets of both in the shed.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  10. #10
    Join Date
    Dec 2006
    Location
    Harper Creek
    Posts
    3,313
    That would be awesome Graeme

    Thankyou

    A single axle trailer doesn't need much travel
    Articulation is largely at the hitch

    As long as there is sufficient travel for high speed bump control
    Limited down travel is actually advantageous to limit
    Roll understeer in a linked suspension

    Steve
    '95 130 dual cab fender (gone to a better universe)
    '10 130 dual cab fender (getting to know it's neurons)

Page 1 of 4 123 ... LastLast

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Search AULRO.com ONLY!
Search All the Web!