Thread: 130 suspension too hard?

Originally Posted by madandmuddy

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One question though, with the vehicle on the hoist and then the back lifted until the wheels were in the air there was only 6cm drop in the axle. Surely there should be more drop that that??
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Originally Posted by roverrescue

But Rick if you put longer shocks on you lose the built in 130 "antiroll effect" of having to pick the inside corner up with spirited driving!!!!

But seriously, may be worth swapping the inner coil for coilrite/polyairs... when unladen low pressures will give nice ride and when loaded you can increase the air helper pressure.

Or just go full rear airspring!

Steve

Originally Posted by rick130

Nearly mentioned the anti-roll benefits of nil-droop, (and the reduced pitch under brakes) but thought it was getting a bit too race car engineeringish

In a 130, as mentioned there is bugger all droop (axle drop) with the inners fitted, it's much less than 60mm too.
It's all to do with the length of the dampers/shockies and the high rate of the springs.

This is the reason why a lot of people go wrong when lifting a 90/110/130, they end up with bugger all droop travel and worse articulation off road than a stock suspension setup.

I have much more droop than 60mm, but I'm not running stock dampers front or rear either and damper mounts have been altered to accommodate.

Originally Posted by rick130

I'm guessing an '01 would still be red/green and red/red ? (330lb/in)
The inners are 140lb going off my measurements.

Finally found time to look a bit deeper. Front srpings are HD, marked up as blue/red and yellow/white. The rears have no markings which would suggest someone might of stuck heavier duty one in at some point. It started life as a trayback on an orchard. The rears are made from a 19mm bar compared with the 16mm on the front. Maybe they have OME super heavy duty which are 420lb, could explain a lot! Might be time to try a pair of 752's.

Originally Posted by madandmuddy

Finally found time to look a bit deeper. Front srpings are HD, marked up as blue/red and yellow/white. The rears have no markings which would suggest someone might of stuck heavier duty one in at some point. It started life as a trayback on an orchard. The rears are made from a 19mm bar compared with the 16mm on the front. Maybe they have OME super heavy duty which are 420lb, could explain a lot! Might be time to try a pair of 752's.

What colour are the springs ? (and i don't mean the missing/non existent paint codes )

Count the # of turns pretty much exactly, and if that 19mm wire diameter is pretty accurate I should be able to calculate out the rate pretty closely.

My step-father had a 130 and it looked like it had a set of Lovells springs in the rear and they were beefy.
The rate worked out at 540 lb/in, and it had the helpers in too (but with the camper body on the back it tared at 3000kg over the weighbridge empty)

Originally Posted by rick130

What colour are the springs ? (and i don't mean the missing/non existent paint codes )

Count the # of turns pretty much exactly, and if that 19mm wire diameter is pretty accurate I should be able to calculate out the rate pretty closely.

My step-father had a 130 and it looked like it had a set of Lovells springs in the rear and they were beefy.
The rate worked out at 540 lb/in, and it had the helpers in too (but with the camper body on the back it tared at 3000kg over the weighbridge empty)

They are black which is why I hadn't given them much thought before as the originals would of been black. Don't think they would of been that thick though! I will count the number of turns tomorrow, will be interesting to see what you come up with!

Right, just had a look and looks to be 9 complete turns. Not really any space between the top 3 or so coils. 19mm looks to be accurate, can't find the calipers but a 19mm spanner just pushes on.

What is the difference in springs between pre and post 98? A parts place here in NZ does have some pre 98 station wagon springs but doesn't have any idea what the difference is after that. Seeing as there is probably less weight over my rear axle than a station wagon it might be the way to go?

Originally Posted by madandmuddy

Right, just had a look and looks to be 9 complete turns. Not really any space between the top 3 or so coils. 19mm looks to be accurate, can't find the calipers but a 19mm spanner just pushes on.

Assuming 6.25" diameter of spring (that's what's on my defender), and ignoring the top and bottom turns, the formula (in inches) is like this:

Wire Diameter: 0.75
Coil Diameter (center to center): 6.25
Number of Free Coils 7:
Pounds per inch: 272

So 272 pounds!

Sounds way to light for 130 springs..... Maybe I better look for another spring rate calculator.


Edit: This is the calculator I used: http://guzzitech.com/springrate.html

Originally Posted by spudboy

Assuming 6.25" diameter of spring (that's what's on my defender), and ignoring the top and bottom turns, the formula (in inches) is like this:

Wire Diameter: 0.75
Coil Diameter (center to center): 6.25
Number of Free Coils 7:
Pounds per inch: 272

So 272 pounds!

Sounds way to light for 130 springs..... Maybe I better look for another spring rate calculator.


Edit: This is the calculator I used: http://guzzitech.com/springrate.html

How do you define the free coil part? A coil with space above and below? If so then there are only 4 maybe 5 free coils. The top 3 are tightly closed. The disco 1 sitting here that I just aquired has 6 free coils looking at it the same way.

Coil diameter looks right.