Suspention modification.

[BJMax]

Hi here a little mod i made.

(sorry for my English. @moderator please mod for the correct words.)

 

Here the installing of the Swaybars..

 

 

After a cup of thea.. we started to work on the Zed.

 

 

First removed te cover.

 

 

There it is

 

 

 

Now the detached it from the links. they are realy locked down..

 

 

 

removed the clamps and rubbers.

 

 

Her the stock and the solled Whiteline together. The rubber brushings are also replaced for stronger ones.

 

 

 

Brushings creased and put back on it.

 

 

 

Connected it to the links on mid strong setting.

 

 

 

 

So it is in. Now the cover and the frond is ready.

 

 

 

 

The Back is easier. loosen the exhaust to make room. rubber off and de links.

 

 

And put them back on, On the strongest setting.

 

 

 

 

 

 

Exhaust on its place.

 

 

Down you go.. and lets go for a test drive...

 

This is the greatest mod i have done on my Z....

 

then the shop came whit a little thing to finish it completely.

 

Here it is....

 

 

 

Here we come again.

 

 

We started on the Back.

 

 

 

 

and this is the first.

 

 

And now the spring comes lose when the shock is out.

 

 

find the 2 diverences...

 

 

easely the new one goes in.

 

 

 

 

Now the tricky one. to get it lose we used a iron tube to get some room.

 

 

After that is done.. it is very easy to get the new one in.

 

 

 

Here we go..

 

 

 

..... Testdrive.. this is great.. turning on high speed.. it is a lot more stabilety.

 

 

Gr

 

Johan

[3FIDDYZ]

Nice one mate, great pics showing what needs to be done.

 

Have done the same with mine (not the same parts though!) and it makes an amazing difference to the car.

[Zedrush]

WHOA!!!! only four posts and already he is posting a step guide on modding, nice one mate glad to have you on board

[GIXXERUK]

Superb guide and your car looks mint

[Pingu2]

good post

 

btw "drivetrain" refers to the components which transmit power from the engine to the wheels - just a note

[BJMax]

good post

 

btw "drivetrain" refers to the components which transmit power from the engine to the wheels - just a note

 

Ok.. it was late.. and my Enlish is a bit rusty. I change it.

[dcash5]

What are the results of the sway bars? I.e what affect does it have on the car?

[BJMax]

You like to read... here about Sway Bars

No, these aren't the things that are bolted inside the car in case you turn it over - those are rollover cages. Anti-roll bars do precisely what their name implies - they combat the body roll of the 350Z on it's suspension as it takes corners. They're also known as stabilizer bars or anti sway bars. Almost all cars have them fitted as standard, but there is usually room for improvement. From the factory the 350Z's sway bars are biased towards ride comfort in order to serve the mass population. Stiffer aftermarket bars will increase the road-holding but you'll get reduced comfort because of it. It's a catch-22 situation. Fiddling with your roll stiffness distribution can make a car uncomfortable to ride in and extremely hard to handle if you get it wrong.

 

The anti-roll bar is usually connected to the front, lower edge of the bottom suspension joint. It passes through two pivot points under the chassis, usually on the subframe and is attached to the same point on the opposite suspension setup. Effectively, it joins the bottom of the suspension parts together. When you head into a corner, the car begins to roll out of the corner. For example, if you're cornering to the left, the car body rolls to the right. In doing this, it's compressing the suspension on the right hand side.

 

With a good anti-roll bar, as the lower part of the suspension moves upward relative to the car chassis, it transfers some of that movement to the same component on the other side. In effect, it tries to lift the left suspension component by the same amount. Because this isn't physically possible, the left suspension effectively becomes a fixed point and the anti-roll bar twists along its length because the other end is effectively anchored in place. It's this twisting that provides the resistance to the suspension movement.

 

This means that the suspension is effectively stiffened, but only when cornering. If you hit a bump in a straight line that lifts both wheels simultaneously, there's no twisting force as the wheels are doing what the swaybar is trying (and failing) to do in the above situation. This means that you can maintain a comfortable ride by running a softer spring, as the anti-roll bar augments the spring's resistance to compression only when turning....which is when you want it stiff.

 

As for the effect of stiffening one end of the car relative to the other, the stiffer you go the more that end of the car wants to "push". If you stiffen the front anti-roll bar more, the car will want to understeer more. Stiffen the rear more, and the car will oversteer. As such, some manufacturers will choose a swaybar that makes the car more neutral than the understeer-prone OEM.

 

While it seems like anti-roll bars are negative-free roll stiffening parts, that's not the case. You might be tempted just to leave the factory springs and use ultra-stiff swaybars to give yourself a comfortable ride along with flat cornering. Remember that an anti-roll bar connects the two sides of your suspension together, which means you lose suspension independence. And we all know that independent suspension is far better for ride and handling. What a stiff swaybar means is that bumps affecting only one side of the car get transferred to the other. Hit a pot hole in a straight line, and the car will be more likely to crash through it. One wheel drops into the hole, and instead of just the suspension on one side absorbing it both sides react. Hit a curb in the middle of a corner and you could lift a wheel.

 

If you run your front and rear swaybars too stiff, you may lose the ability to turn in and put power down. Your car will stop rolling onto its suspension, affecting your suspension geometry's ability to work. This means your tire cannot retain an optimal contact patch onto the road, as the engineers designed it. Net result is that the car feels too skatey.

 

gr

 

Johan

[Ian]

Great write up

 

The Z feels like a completley different car after coilovers & ARBs

[BJMax]

it feels like

[GIXXERUK]

it feels like

 

ah........ the universal language

[M13KYF]

nice post, will leave it here and also move it to the guides section

[H5]

Another nice guide, thanks.

[From A to Zed]

Great guide, also good to see the Dutch tackle big jobs with a cup of tea of first

[Pimm]

Very good