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Chris.L
Joined: Sat Apr 23, 2016 6:50 pm Posts: 51
Vehicle: D40 navara King cab
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 Posted: Thu Dec 08, 2016 1:22 pm |
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Hi Guys,
My Car is currently a rolling chassis w/ no motor of body attached.
Can I do the RUF mod now, or should I wait until the cars built so resting height ect can be factored in?
My understanding is that you do the chassis lengthen based on shackle angle, and no other variable?
I hope this makes sense?
Thanks,
Chris
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shiv
Joined: Fri Sep 02, 2011 6:38 am Posts: 693 Location: Singo
Vehicle: SJ70 1993
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Posted: Mon Dec 12, 2016 11:24 am |
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True but depends on the length of the rear springs you are putting in it as that will change your shackle angle as well
_________________
Lock, Drop and roll
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Chris.L
Joined: Sat Apr 23, 2016 6:50 pm Posts: 51
Vehicle: D40 navara King cab
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Posted: Mon Dec 12, 2016 11:48 am |
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shiv wrote: True but depends on the length of the rear springs you are putting in it as that will change your shackle angle as well Thanks, I've got the springs I plan on using already, just wanted to confirm if I need to wait until it's assembled prior to doing the extension just to be safe
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Gwagensteve
Joined: Thu Feb 26, 2009 10:30 pm Posts: 13001 Location: Melbourne
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Posted: Mon Dec 12, 2016 11:50 am |
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You don't need to wait. Strip a spring to just the main leaf and cycle the suspension to set shackle location.
The variables are length of spring and position of bumpstop. Ride height isn't a factor. You'll trim the leaves in the pack to set ride height where you want it.
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Chris.L
Joined: Sat Apr 23, 2016 6:50 pm Posts: 51
Vehicle: D40 navara King cab
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Posted: Mon Dec 12, 2016 11:56 am |
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Gwagensteve wrote: You don't need to wait. Strip a spring to just the main leaf and cycle the suspension to set shackle location.
The variables are length of spring and position of bumpstop. Ride height isn't a factor. You'll trim the leaves in the pack to set ride height where you want it. Perfect Steve, just what I wanted to know! Thanks 
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Gwagensteve
Joined: Thu Feb 26, 2009 10:30 pm Posts: 13001 Location: Melbourne
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Posted: Mon Dec 12, 2016 12:05 pm |
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It might not mean you can start the RUF though - I'm not sure if you have your tyres or not but with no body on the car and no tyres, you won't be able to set bumpstop position because you won't know where you're going have to cut. If you set the car up on stock bumpstop locations and then need to space them* once the tyres are on, you'll be giving up potential droop. Likewise if you set the car up with say 30mm of bumpstop spacer and find out it wasn't necessary, you're loosing compression, and the car will sit higher on the obstacle than it needed to, to the deficit of stability.
*obviously there are some hard limits. Brake pedal clearance and the position of the headlights are what I consider "hard limits" - obviously pinching the nose can assist with headlight clearance, but it's a lot of work to go to.
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Chris.L
Joined: Sat Apr 23, 2016 6:50 pm Posts: 51
Vehicle: D40 navara King cab
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Posted: Mon Dec 12, 2016 2:01 pm |
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Gwagensteve wrote: It might not mean you can start the RUF though - I'm not sure if you have your tyres or not but with no body on the car and no tyres, you won't be able to set bumpstop position because you won't know where you're going have to cut. If you set the car up on stock bumpstop locations and then need to space them* once the tyres are on, you'll be giving up potential droop. Likewise if you set the car up with say 30mm of bumpstop spacer and find out it wasn't necessary, you're loosing compression, and the car will sit higher on the obstacle than it needed to, to the deficit of stability.
*obviously there are some hard limits. Brake pedal clearance and the position of the headlights are what I consider "hard limits" - obviously pinching the nose can assist with headlight clearance, but it's a lot of work to go to. Thank you Steve. Much appreciated!
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