Dedion

[Lajoosh]

Ivan141 Wrote:Nice ride! I understand the benefit in unsprung weight you get from a de dion, but you're better off fitting proper independent rear suspension (preferably something with double wishbone layout).

aggreed!

not to mention making a custom de dion suspension would cost you a ton of cash + nobody done this before on an 86 afaik -> nobody can help you if something is wrong with it and you cant figure it out yourself. (and that we never seen it before on 86, i guess there is a good reason for that, actually i didnt even see any car running that on racetrack) btw you only lose the diff casing and diff unsprung weight, not all the components and youll still have the caracteristics of the live axle. i dont believe its that much lighter compared to the irs suspension where you have plus one arm that holds the wheels and if that little weight makes a difference, then youre already screwed on a racetrack.
listen to the guys above! make a decent irs suspension like the s13 conversion. cost effective easy to swap, lot of aftermarket stuff, lot of brake options, works well, people here will help you with it.
good luck with your project, nice base you got there!