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What corrections needed for 40mm lift?

  • GRAYWOLF
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24 Aug 2018 14:52 #195412 by GRAYWOLF
Replied by GRAYWOLF on topic What corrections needed for 40mm lift?
Interesting response, as i had a steering damper on before i fitted the lift kit, i found steering self centred without damper, but with a damper it didnt, or at least a lot slower, which is understandable..due to damping on steering under hydraulic pressure..it DOES actually self align, but a lot slower and stiffer, as to correction bushes what do you suggest then? if, as you say that none ..or most don't have sufficient correction.
I had surmised, that all or most kits for bushing s were in the main, tried and tested.

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24 Aug 2018 15:39 - 24 Aug 2018 15:41 #195413 by yakuza
I have not tried all of course, but measured the ones i had as i did not feel that the car became as good at self aligning as it was before the lift. After doing som maths and drawing up everything on my PC in CAD and calculating I found the ones I had where a bit short as i suspected.
But my suspension numbers and angle measurements was helped a bit by my friends at the local shop so i got a "green" measurement to show the dept of motor vehicles.
In Norway we have to get everything approved.
Sorry i do not have the sketch here at home with the figures, but i can find this at work on Monday.
I do not remember what kinds i bought, but they are all more or less the same offset.
I did not get a steering damper until much later.

Norway 2005 Jimny M16A VVT, 235 BFG MT, 2" Trailmaster, ARB rear lck, 17%/87% high/low gears.
Last edit: 24 Aug 2018 15:41 by yakuza.

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24 Aug 2018 15:42 #195414 by yakuza
however for your 40mm lift the 2" or 50mm lift correction bushes should be just about fine I guess..

Norway 2005 Jimny M16A VVT, 235 BFG MT, 2" Trailmaster, ARB rear lck, 17%/87% high/low gears.

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25 Aug 2018 02:16 #195417 by zukebob
Ramon

I didn't use spacers on the front to level it but my situation may be a little different than yours. When I decided on the OME, I made a special purchase on the diesel front springs (part 2969) which have a significantly higher spring rate than what most people in the PI buy (part 2965). I am fairly sure that my front springs aren't compressing as much as yours. There was still a little bit of a forward lean but it wasn't enough to react to.

As far as the caster correction, I am with the majority that your lift didn't need it. I felt no difference in steering when I went with the OME. That said, since you already have the correction bushings installed, and the car apparently handles reasonably, keep them. In my case it may be that when I went with the OME "40mm lift", I wasn't looking for lift at all. I have steel front and rear bumpers and I was looking to "re-tune" my suspension. As I came back to approximately stock static height, I considered myself fairly successful (except for the front being a stiffer suspension than I wanted). Also, coming back to stock height, my caster angle should be correct.

I also have a steering damper and it did help a lot with our roads here.

I started out with nothing & still have most of it left
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  • ramonmaruko
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27 Aug 2018 05:40 - 27 Aug 2018 05:42 #195442 by ramonmaruko
Replied by ramonmaruko on topic What corrections needed for 40mm lift?

yakuza wrote: Another thing is that most correction bushes for 2" lift does not correct the castor fully as they have too little correction.


Do you think the JimnyBits caster corrected radius arms for a 3" lift would be better than my current Ironman bushes?


zukebob wrote: I made a special purchase on the diesel front springs (part 2969) which have a significantly higher spring rate than what most people in the PI buy (part 2965).


Can you confirm the part number that is on tags on the rear springs? Should it have said 2967 for LHD units such as ours? My tags for the rear and front are 0615 and 0715 respectively.

I also noticed a few things with how the springs are installed on my Jimny. 3 out of 4 of the springs are not touching the spring seat end... Should I be worried about this? I noticed that at speeds of about 50km/h, the Jimny doesn't drive straight; but follows a wavy line.
Last edit: 27 Aug 2018 05:42 by ramonmaruko.

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27 Aug 2018 06:59 #195446 by jackonlyjack
I run 3" castor arm's front and rear with a 2" lift
And it's perfect in my opinion steering self centers,rear shocks mount as they should,rear springs do not catch anything
I just fitted a disco 1 damper on own made brackets
Steering still self centers. Only reason I fitted it was the 225/75/16' s I have on now are a little bouncey at 20psi

Jack
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