Znalazłem post na forum w Australii, może się przyda, można też oprzenieś w odpowiednie miejsce
Ok, so there's a bit of discussion spread throughout build threads, but I thought it would be good to get it out in a separate thread.
I'm again looking for a HD load bearing coil for around 3" of lift in a Vitara. I found that the GV lifted coils raised the back of my old car around 2.5", and cope fairly well loaded up. They are however too short for my chosen Rancho shocks, to the point where they are now liable to fall out.
I now have a pair of Dobinsons GV lifted coils in the front of my new car (2L V6) but they have only raised the car around 1" once the bullbar, winch, dual batteries, roofrack etc are mounted. The spring rate is great, they are nice and flexy without being floppy on road. They are the same wire thickness and rate as the OME Vit springs I had in the old car for a while, which I also liked. My CVs are dead flat at ride height, so I can definitely afford to lift further.
So, what I think I want is:
REAR - Same wire and rate as the current Tough Dog GV springs, but 20-25mm taller
FRONT - Same wire and rate as the current Dobinsons GV springs, but 45-50mm taller (ride height, see below)
FRONT
Now... the specs for the Dobi coils are:
c57-042 - 320mm long, 16mm wire, 82mm internal dia, 8.5 turns, rate 98.6
My very basic maths suggests that for a 50mm lift at ride height, the spring would need to be 25mm longer. For the sake of argument, the springs in there now with everything bolted on are around 275mm at ride height. So apparently for the 300mm I want at ride I'll need 345mm free.
Filtering the Dobinsons list down for only 82mm internal dia, 16mm wire and close to the same rate leaves only the shorter Vitara stuff.
17mm wire gives some more options - XL7, D40 Navara or R51 Pathfinder.
The XL7 is 345mm long, 10.2 turns, rate 98.07
The Navara specs are confusing (number of turns is listed as 45-260???) but length is 375mm, rate 94.8
Pathfinder is interesting: 385mm long, 10.5 turns, rate also 94.8
So surprisingly the rates are slightly lower, but only slightly. Length-wise the XL7s are close, but the Pathy and Nav are quite a bit too long.
REAR
Tough Dog GV coils are TDC835, as measured by me are:
365mm long, 13mm wire, 10.75 turns.
The Dobinsons equivalent is:
C57-045, 360mm long, 13mm wire, 82mm dia, 10.75 turns, rate is 35.00
The Calmini GV 2.5" lift coils as measured by Atari are:
415mm long, 13mm wire and 11.5 turns
Any other suggestions are most welcome, although please leave out the "apparently" or the "I've heard/read" stuff, as it's not really helpful. Specs are helpful
