I run about 35psi in the rear of my 130 SCab. Put it up to 45 with a tonne or more on the back. I think it rides well and our roads are crap around here. Mickey thompson ATZ 235s.
Cheers Scott
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I run about 35psi in the rear of my 130 SCab. Put it up to 45 with a tonne or more on the back. I think it rides well and our roads are crap around here. Mickey thompson ATZ 235s.
Cheers Scott
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.
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 :D)
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 :eek: (but with the camper body on the back it tared at 3000kg over the weighbridge empty)
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?
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.
I am not sure how you define a free coil!
If you change it to 5 free coils instead of 7 then the figure goes up to 381 pounds.