Coils or leafs???

[booflux]

Ok I know most will just say coils but heres the question and my dilemma.

I have a surf rear I was going to put into the 85 Lux I am building, I was really impressed with the flex Twisty and Nemesis, among others are getting from theirs. My concern is that most of the impressive ones have longer coils in them giving them 4" lift as well.

I dont want 4" of lift in the 85 I want to keep it at 2" and have noticed that the longer shocks fitted to my 98 last week have it almost matching Twistys for articulation. This has got me thinking which is the better way to go when height is a concern??

From my look around I have seen most coiled rigs need 4-6" of lift to get impressive articulation whereas the leaf sprung trucks are doing it with a lot less lift?? Do coils need the lift to get the flex or am I looking in the wrong areas?? The 85 is a budget build and I dont want to spend big dollars on airshox or similiar so either IFS rears or surf rear are my two choices. I also have no regard for on road ride as it wont be daily driven and will be set up for offroad not on road.

Thanks in Advance

[Dee]

what tyre size do you want to run mate? Ive found with my zook that leaves can tend to be a pain with approach and departure angles... Can be good for flex with flat leaves etc, or if you go to some sort of folding/drop shackle but alot of people have mixed opinions on these regarding unloading etc on climbs & side angles.
I would definetly say coils. Have you thought about fabbing up coil retainers at say diff and then use locaters/cones at the chassis? With longer shocks this provides the ride height you want yet allows the coil to drop away from the chassis a bit without completly falling out.
There's a white GU members thread on 4wdm with pics, i'll see if i can find the link...

[Dee]

http://www.outerlimits4x4.com/phpBB2/vi ... p?t=119500

it was on here not 4wdm

[booflux]

Cheers Dee that does look good I am only going to be running 35-37s no bigger.

[Ryano]

Cheers Dee that does look good I am only going to be running 35-37s no bigger.

Skirt!

Cheers,
Ryano

[-Richo-]

Is this enough flex for you?



Standard 80s front coils, retained top and bottom, sat not alot higher than standard.

[Madmac]

Is this enough flex for you?



Standard 80s front coils, retained top and bottom, sat not alot higher than standard.

is this likely to bugger the coils having them retained top and bottom, the weight of the diff looks like it is stretching the rear right coil a lot. ive been thinking about retaining mine top and bottom, they are currently only retained at the top with locating cones welded to the diff. my thinking is that coils arent really designed to be stretched. was just wondering if retaining top and bottom will have an adverse affect on the coils??????
thats some nice flex you got there

[booflux]

is this likely to bugger the coils having them retained top and bottom, the weight of the diff looks like it is stretching the rear right coil a lot. ive been thinking about retaining mine top and bottom, they are currently only retained at the top with locating cones welded to the diff. my thinking is that coils arent really designed to be stretched. was just wondering if retaining top and bottom will have an adverse affect on the coils??????
thats some nice flex you got there

I was wondering the same thing, that is awesome flex but is it at the expense of the coil??

[Guy]

is this likely to bugger the coils having them retained top and bottom, the weight of the diff looks like it is stretching the rear right coil a lot. ive been thinking about retaining mine top and bottom, they are currently only retained at the top with locating cones welded to the diff. my thinking is that coils arent really designed to be stretched. was just wondering if retaining top and bottom will have an adverse affect on the coils??????
thats some nice flex you got there

I was wondering the same thing, that is awesome flex but is it at the expense of the coil??

standard 80 series front coils are pretty cheap ...

[+dj_hansen+]

standard 80 series front coils are pretty cheap ...

^^ you could walk into any 4WD shop and they would probably give you a trailer full to play with.

[chunderlicious]

boof, you dont need lift for the flex, just the shocks in the right position. on a ute it is easy as you have alot of room to play with shock mounting heights and positions. richos flex is just that, well placed shocks in a good length (not int he pic).

when i do my rear the coils will be retained top and bottom as this seems to be the cool thing to do these days and just run a limit strap for front to save the shocks and reain the springs.

RUF actually lifts the car quite a bit, i noticed 5 inches in mine as it was sagged, so there is definately lift gained.

[-Richo-]

the coils have been going strong for a year now, i dont own it anymore but from what he tells me its still working great. I cant see why its bad for the coil to be stretched like that unless it yields.

I wouldnt have the coils unretained, with that kind of flex if unretained id imagine it would be very sketchy... think SCAT

[Dee]

the coils have been going strong for a year now, i dont own it anymore but from what he tells me its still working great. I cant see why its bad for the coil to be stretched like that unless it yields.

is that a triangulated 4-link? I'd imagine that would outflex your standard surf rear. That said, the factory 5 link setup in the rear of my patrol can still flex bloody well.

I think i remember reading somewhere about coil springs rates work the same in both directions. ie they will only stretch one way the same as they will compress in the other under the same force... If its only the weight of the diff & tyres pulling against it opposed to the weight of a whole car compressing them constantly I hardly think it will destroy them...

I reckon go with the surf rear boof. that setup above looks killer! retained with long shocks If you find its not flexing like you thought, you could always try setting up one end of the spring to drop away later... although some people say they prefer stability/predictablity of a retained coil though.

ive got a set of std. patrol coils sitting around at work you could have...

[-Richo-]

yes triangulated 4 link, if he is going to coil the rear of a lux then dont waste your time with any 5 link crap you just have to move a few things around (ie fuel tank)

One thing to keep in mind though that rear diff is out of a 05 hilux, its about 5" wider than a surf rear diff so you may get some scrubbage on the chassis unless you run flipped rims or spacers.

build thread is here, youll see pics with shocks etc...

http://www.outerlimits4x4.com/phpBB2/vi ... hp?t=31235

[booflux]

yes triangulated 4 link, if he is going to coil the rear of a lux then dont waste your time with any 5 link crap you just have to move a few things around (ie fuel tank)

One thing to keep in mind though that rear diff is out of a 05 hilux, its about 5" wider than a surf rear diff so you may get some scrubbage on the chassis unless you run flipped rims or spacers.

build thread is here, youll see pics with shocks etc...

http://www.outerlimits4x4.com/phpBB2/vi ... hp?t=31235

Thats the thing this is for the old banger so I want need to keep it budget. I have plans for the 98 that will no doubt happen in the future. The 85 is just for fun and to get more experience doing crap myself. I have the surf stuff here so if it was going to be better would use it. I havent seen many with the 5 link setup flex well without lift hence the question. The comment on the ruf is interesting though and something I wasnt aware of so I may need to do some more searching and reading

[-Richo-]

You can do a 4 link on a budget

nissan bushes and machined rings to suit and some 40x40x4 rhs, theres your links.

coils, if you cant get them for free your not looking hard enough.

metal for brackets etc

Relocating the fuel tank is a piece of piss.

TIME.

there is obviously all the small things, but other than that its too easy

if i was doing it again, i would dove tail the rear of the chassis and space the coils out as far as possible without it rubbing on the tyres. You want to keep it low so you dont want to be mounting the coils under the rails. This will also solve tyre scrub issues with narrower diffs.

cut out the horse collar cross member and make a new heavier one to mount your lowers onto, i peeled mine apart after a couple of runs.

Theres probably more thnigs i would do a bit different but thats mostly it, feel free to PM me any questions you might have ill be glad to help.

on the RUF, youll get it flexing pretty good in the front with this setup and will compliment the triangulated rear well. Gribble is the person to talk to, his front works very well.

[chunderlicious]

my RUF and extended shackles will top out a 12 inch shock with 3 inches uptravel. nissan coils are WAY to stiff for a hilux rear. rover or landcruiser fronts. these are tall however. get some standard nissan lowers or uppers and cut the bush rings off them. this is how i get bush rings and bubs too.