kings springs--anyone used them?

[Murph]

After

[Murph]

Hmm....doesn't look like much difference in the photos does it? It certainly made quite a big difference in person. Before it had somewhat of a 4WD look to it because of the ride height and big tires.

Looks a lot better now.

[sjcurtis]

So are you guys saying that the all rear spring compression rate for super low is higher than it should be or have they sent 2+2 rear springs packaged as 240Z/260Z 2 seater. Did anyone confirm free hight then compressed hight as a check durring install. I think I will be after a new set at 200LBS front and rear and I am not sure if super low or low will be better as I want to have some flex when it is squeezed in tight.

cheers

Steve :classic:

[Mr Camouflage]

Originally posted by Datto-Zed

Yep that's the measurement.

Non-trapping as in, when your suspension is fully extended, the spring is shorter than the distance between the plates that it sits between and can fall off onto the shoulder of the plate.

*Used the word plate cos I have no idea what the correct term is.

Spring Perch i've heard them called.

Heres my z when i bought it at standard height. Its up on stands with no suspension at the moment, so i can measure the distance

http://www.classiczcars.com/photopost/data/500/1278100_0471-med.JPG

[Brett240]

DatFreak,

220 pound springs wont be to stiff for street use. my car is a part time track car with 500 pound springs, i drive it to work every day. while its a little too stiff for the street (you learn to dodge everything that doesnt resemble a perfect surface ) it can still be driven with relative comfort, so in comparison220 pound springs will be fine comfort wise on the street.

Kyteler,

i have found a front strut brace increases initial turn in response though this is really only noticeable on a track.

[trs]

brett240 what sort of shocks are you running for those spring rates?

I am in the midst of deciding on the specs of my suspension, and the blokes from the states recommended 200lb front and 225lb rears. I'll be using adjustable koni yellows (mk1 golf and celica gt4) and sectioning the struts.

Some real world experience from a fellow ozzie would of course be very helpful!

My car will mainly be used for hillclimbs/wakefield etc with the occasional weekend blasts through the mountains- so ride comfort is not on my high list of priorities- However I would still like a compliant ride that is able to absorb bumps at speed without sending the car airborn.

[Brett240]

Hi Trs,

I use Koni Red's in shortened stuts with adjustable platforms. with 500 pound springs all round my rear shocks are adjusted just a shade off full hard on the back and completely soft on the front. i need slighlty harder springs in the back to dial out a little bit of understeer.

If you will do hill climbs/ wakefield etc and ride quality isnt a big issue then i'd go a little harder on the spring rates. i have fairly heavy springs but they are only bad on pretty rough surfaces.

the seppo's have it right with the different rates though, you need harder springs in the rear, go for a 25 pound difference.

In the end its a comprimise but i would think 200 pound springs are a little on the soft side for light track work.

hope this helps!

[Ben]

FWIW, my car, 'lowered by Kmac' is 360mm front & rear.

Not sure about the spring rate, but I do believe that I'm going to tighted up the Koni's a bit - it feels a little soft for my liking.

[trs]

hmm, did you end up having to revalve the koni's.. I read somewhere that the majority of koni yellows have a recommended spring rate of up to 450 pounds.

I didnt realise you could get adjustable koni red's?

what model numbers are these and are they made specifically for the Z?

It's quite tough deciding how soft is too soft as everyone has different opinions on ride comfort etc.. I think i may go somewhere in the middle of the line and opt for a 3XX lb spring rate.

---

As an aside I went to wakefield today to blow out the cobwebs on my daily driver.. was a brilliant day and Ive now developed a longing for 1970's 911 porsches.

They are built like a bloody bankvault.

[Ben]

They are adjustable Special D's & are currently on their softest setting. Part numbers (for a 240Z) are:

86-1811 (F)

86-1812 ®

One of the reasons that they haven't been adjusted up is that you have to fully compress the piston & then turn - hence removal or the spring is required....

[g260]

Hey TRS,

What times were youy doing at Wakefield?

g260

[speedyblue]

Kings never sold superlows for the 240Z because it would be sitting on the bump stops with them in. The Z struts are pretty close to being fully compressed as is and the extra 50mm bottoms them out, plus because it is a stiffer shorter spring they aren't captive when you jack it up. I had a chat to them about this a while ago. Competent suspension shops (ie not pedders) can cut your struts open and insert a block of some sort to stop the strut extending so far, hence keeping the springs captive. I think I was quoted under $500 for new low kingsprings, new munro shocks, installation, plus shortening the struts and lower the 'Spring mounty thingy' to lower it all to the legal level(100mm allround). It would have thrown the camber out too much though so I never got around to it.

Has anyone fitted those K-mac adjustable strut tops to a Z-car? They would fix it perhaps. Are they even available for a Z-car?