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Generation 2 Pajero NH - NL Models 1991 - 2000

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Old 6 Days Ago
motorazr motorazr is offline
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Default Suspension 1998 GLS wide body

My paj is currently running the stock coils in the rear from the day it was born, recently i took out the cargo seats and installed 2 drawers and a 65 litre fridge, along with an 80ah agm battery.
The drawers are full.
I have noticed when going over some bumps that the rear bounces around a little so have decided to put some new springs in it.
I was able to source some OME910 springs, and intend to team this with some foam shocks eventually.
The springs have a 15mm lift and are rated medium to GVM by old man emu specs, i also occassionally tow a van which has a ball weight of around 135kg.
Do i need higher rated springs or will i be able to get away with the 910ís.
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Old 6 Days Ago
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The rear suspension on the Gen 2 Pajero carried over to the PA Challenger then The PB/PC Challenger and now the Pajero Sport so there are lots of coil options to choose from, which could give you a better outcome for a lower cost.


I have a lot of spring data and calculations for the PB/PC Challenger and some for the Pajero Sport so I can convert these over to suit the Gen 2 but I need 3 measurements and 1 additional piece of information.


1. When the car is parked on level ground what is the measurement between the centre of the rear wheel hub and the underside if the wheel arch in a vertical line?


2. What is the gross rear axle weight, you just need to fins a weigh bridge and drive on to it so the front wheels are just off the weighing platform and the rear wheels are as close the the centre of the weighing platform as possible.


3. Jack a rear wheel up off the ground using a jack under the axle, remove the wheel and measure the distance between the top of the axle articulation bump stop and the underside of the chassis where the bump stop contacts.


4.Whilst the rear wheel is removed, please check if there is a rubber cone spring inside the coil, if there is it will be attached to the top spring pad.


OJ.
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Old 6 Days Ago
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tomwithannl tomwithannl is offline
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Quote:
Originally Posted by motorazr View Post
My paj is currently running the stock coils in the rear from the day it was born, recently i took out the cargo seats and installed 2 drawers and a 65 litre fridge, along with an 80ah agm battery.
The drawers are full.
I have noticed when going over some bumps that the rear bounces around a little so have decided to put some new springs in it.
I was able to source some OME910 springs, and intend to team this with some foam shocks eventually.
The springs have a 15mm lift and are rated medium to GVM by old man emu specs, i also occassionally tow a van which has a ball weight of around 135kg.
Do i need higher rated springs or will i be able to get away with the 910’s.
Hi. You don't actually say if your ride height is a problem only that it "bounces around a little".
If you are happy with your ride height I would just be renewing/upgrading the shocks as they are likely to be original.
Just my opinion
PS The rear most seats are Bloo*y heavy, would not surpise me if you are actually lighter now!

Tom
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Last edited by tomwithannl; 6 Days Ago at 10:13 AM. Reason: PS
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Old 5 Days Ago
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Quote:
Originally Posted by motorazr View Post
I have noticed when going over some bumps that the rear bounces around a little so have decided to put some new springs in it.
A classic concept in physics is the mass-spring-damper system. A mass on a spring (if disturbed) will oscillate endlessly - unless it is damped. Your rear bouncing around a little is a classic symptom of an underdamped system, so it is most likely that your dampers (shock absorbers) are the problem, not the springs.

Quote:
Originally Posted by motorazr View Post
I was able to source some OME910 springs,
I have some of those for Shorty.

Quote:
Originally Posted by motorazr View Post
Do i need higher rated springs or will i be able to get away with the 910ís.
You're going about this the right way. A mass-spring-damper system needs to be "tuned", to ensure that all three components work together.

You've increased the mass, and noticed the performance has suffered. Next step is to decide on the right springs to suit the mass, then look at dampers.

From what you've posted, the 910s may be adequate, but you may need something heavier. Work with OJ on that, but don't expect new springs (if you change them) to magically cure your damper issues.

Once you are comfortable with your chosen springs, then you can start talking to suppliers about damper options.

Keep us updated with your progress.
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  #5  
Old 5 Days Ago
motorazr motorazr is offline
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Thanks guys will keep you updated.
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Quinno Quinno is online now
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If it's any use to you I have 2 spring options for you that I have taken off my Gen II Pajero. Option 1 is a 420mm long variable rate spring 165-200lb/in by Tough Dog. Option 2 is a 400mm free length by lovells that is heavy duty 175-235lb/in. Also got Tough Dog big bore shocks. Done about 30,000km. My Pajero crapped the gearbox so I am stripping it for parts now.
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