Big Boy, thank you for stating the obvious.
One day you will share something worthwhile, or worth reading, that isnt shooting down someone else personally, while trying to look clever with 20/20 hindsight.......
We have seen plenty of Shanes coils, while swapping out the shocks he supplies, so although not as good as could be, we understand the details of that coil, and its extended lengths etc.
Thats why we offered some information toward actually helping the O.P.
Delancy, we had discussions with many people about our coils, we had Frankies try something similar, around that time, not sure what ever happened with those, but I remember they werent tapered, which we could never get to work, as dead coils, with the designs we tried.
Shane also found one of these designs, that didnt work, and then finally went to tapered wire, like we had found years earlier, when he changed coil manufacturers afew years ago.
We are still using, tuning, and installing our 9th design from back 2006, once we got the right formula, and they work well. The primary and secondary rates are important. We started with the patrol, originally, back in 2005, getting a coil to work with our 850mm rear shocks, with 14" stroke, and 750mm fronts with 11" stroke. You can see one of the early dead coil designs in this pic.
Designing the coil to be the correct height another. The 80 goes to a poor driving experience on road once you go an inch higher, with roll steer from the rear, and bump steer, especially in the U.S opposing panhard rod set up. The Patrol is similar in weight, and suspension style, and we even have some coils we can run from 80, in the patrol, when tuning the height/rates.
TO overcome the roll steer issue, we have been using a larger rear sway bar, especially if the car has added weight over the rear like bar and wheel carrier, because once we went to dialling in neg camber, and more caster, the rear showed it was unable to keep up, and the roll steer
[chassis wheelbase changing as the car leans, and one side wheel droops, the other compressed, causes the rear to steer itself] and this works very well, without limiting travel if the links are correct, by much.
We have also been playing with some new stuff, which is progressing well, and now set for production, after testing, and tweaks, and part of this will be the new coils not only made in the U.S.A hopefully, but available there too, along with the shocks.
We have found that with the new shocks, CDC valving easily adjustable, really helps with on road roll steer, by preventing the lean, while allowing you to drive the car to destruction around the shocks, if you wish :whoops:
We have played with dished pistons to pre load the first washer, flutter stacks for on road suppleness, ramping compression, even running valving that you would normally run in an FJ front shock, in the rear on the 80, while developing what we want.
And there is only so much travel available to make an 80 work, before you have to start cutting, and fabbing, but we are working on making the car drive and behave within these limits now, rather than just concentrate on flex, only. Delancy, tuning your coils to suit, you will only learn something in the process, even if the coils become no good
Loaded ride height on 35's.
We also had FJ slinky coils when it was released here, and we use a 29" rear shock, like the 80, in the back of the FJ, 100, and 200 with the standard arm set up, and longer fronts, with heavier coils, etc.
We have used Fox 2.0 and 2.5's in the past, we made some progress with the King 2.5's for a while, but supply issues with the distributor network, and the custom shocks drove us mad, and so we have moved to a new shock supplier now, and been working with them on lots of Toyota stuff.
Many of these during prototyping have been by tuning, cutting, heating and re adjusting existing coils, to see what works, or if its heading in the right direction, modifying shocks, or making adaptors to use different shocks, and only by doing this, can you find whats really possible, regardless of public consensus, or wives tales, forum consensus, etc.
Only you will know whats an improvement, and whats not, if you fiddle with the specs of what you have, because suppliers who really know thier product,
[never assume they all do] will be able to supply you what you want, providing they make it. This is where getting inventive with what you can get steps in.
As for same old, same old, many companies just continue to supply what worked 10 years ago, which is fine, but I see that as something that would of kept us in animal skins, living in caves, if we didnt dare to venture outside further than we could see from the entrance
I will be updating the details in my 80 SNOWY build, as we progress with some of the stuff above, too.