The Alfa Romeo GTV, equipped with a 3.0-liter V-type engine, is normal and has a low ride height (vehicle height), and the front left and right suspension lower arm is "V-shaped" when viewed from the front.
Since the wheel side is upward from the body mounting part of the lower arm, the state is similar to the outer ring where the load is applied at the time of turning.
In a straight state, both the lower arm is left and right, because it is already the angle at the time of turning, when entering the curve as it is, it is clear that there is no room to step.
Simply lowering the vehicle's height can cause increased instability during turning.This is probably why the hardness (spring rate) of many low-down springs is extremely hard.
In addition, only the model that the attachment called the roll center adjuster is commercially available, the angle of the lower arm can be corrected relatively easily, and even if it is low down, it can be adjusted so that it is hard to become unstable.
Such an improper suspension is not considered normal and standard, i had replaced the normal spring before, but there is no change in vehicle height, it came to the conclusion that it would be a setting of emphasis on appearance.
Three years have passed since then, and it is said that it has become more and more like lying to feel the impact that pushes up at the time of the step pass.
It is a specification that bump stroke is extremely small in normal.I think that the impact from the road surface is transmitted directly to the body by the coil spring in close contact between the lines.It is very wasteful that there is a stroke that is not used on the rebound side, but it is not realistic considering the time and cost of the spring design because the spring of the height of the high car than the normal has only the choice of bespoke.
I will try to replace the shock absorber which has deteriorated rapidly and aging.Koni STR.T, the only aftermarket product that is mass-produced. It's T.
The new shock absorber has the effect of supporting the heavy body by the repulsive force of the enclosed nitrogen gas.
You may want to imagine the Dunbar on a heavy rear gate.When there is a lot of gate opening and closing, the internal gas comes out and the repulsive force disappears, and the gate falls without supporting the weight.
In the case of suspension, it supports the body weight with a coil spring, and I think that the part that the shock absorber carries is numerically small.Shock absorbers tend to think separately from coil springs because the main function of the "damping force" does not occur when the suspension is stationary, but it is an important weight support bearer.
The body is horizontal, but I think that often have the image of the suspension tire is smoothly up and down to follow the road surface, unless it is an active suspension, in the combination of general coil spring + shock absorber, It would be difficult for a variety of inputs.
A good undercarriage car is stable with little body swing in the high-speed range, but in the low-speed range, when the uneven passage of the road surface, the car body unexpectedly goes up and down.I think that it is evidence that a heavy body is firmly supported.It does not operate extra and prepares for the next road condition, so there is little discomfort for the occupant.
When the nitrogen gas encapsulated in the shock absorber comes out over time, the damping characteristics are not so bad, but the ride comfort deteriorates.
At first it was a bit of a mess.If it comes to cause bump touch and spring line-to-line adhesion like this 916 spider, you will not be able to ride very much.Because it is a sports car, it is good to refresh the shock absorber without giving up.
Unfortunately, we couldn't improve the ride height of the car, but I think the ride comfort and quietness have improved dramatically.
Enjoy a comfortable sports car life.