Fossicker
G'day fellas.
I have an 88 Hi-line, 3.5 auto, air con, blah blah.
It has some Peddars springs and shocks in it at the moment, but I wanted to fit some larger tyres, so I bought some 30mm coil spacers..
I just pulled out the peddars spring, which was supposed to be standard sized, and put it next to the two old front springs out of my old 86 Rangey I had back in 2010, which are sagged about half an inch...
Why the heck are the Peddars springs nearly two inches shorter than my sagged ones out of my previous rangey? They're a lot newer, don't look sagged, and all the brake cables and such are very taut when I put the coil spacer and the peddars spring back in (This is on the front)..
Yet I know the springs out of my old rangey are about half inch sagged, because when I bought brand new 2" lifted springs, it lifted it about 2.5"..
What's going on here?
I took a picture of the peddars spring next to one of my old ones, will post it when it's uploaded.
ForumSage
Firstly, Pedders springs and shocks are garbage (in my opinion).
Secondly, they are probably "heavy duty". They would have done this by making the coils thicker (stiffer). This will give a higher spring rate which means they don't compress as much under load. The free length doesn't have a lot of bearing on the loaded compressed length.
Fossicker
I had thought of that, but they don't look any thicker at all. Has me stumped.
ChatterBox
That's quite common. Heavy-duty springs are stiffer, so they don't have to be as tall since they don't sag so much under load. I just replaced my rear springs and the new ones were just about an inch shorter and much easier to get in place, but now the car is about an inch higher than before.
At any given point in time, somewhere in the world someone is working on a Land-Rover.
Swaggie
SubscriberThe spring rate is determined by the diameter of the coil wire and its length ie number of coils.I had thought of that, but they don't look any thicker at all. Has me stumped.
If the wire is made from the same material 2 springs with the same spring diameter and number of coils will be the same rate. fewer coils mean higher rate.
However, there is a new material about now which is much thinner than the old stuff.
In general RRCs like long soft springs as otherwise the fronts will not "bend" with articulation and scare the bejeeses out of you by banging loudly back onto their seat if you do extreme suspension extension.
I have found that a good rate for the front is 160Lb LRA "green" which gives a 2" lift.
Regards Philip A
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