Fitment:
Make: Toyota
Model: Prius Alpha
Year: 2011 - 2014
High Durability and superior quality
A
"sealed structure", attained by a new production formula, combines
high quality with reduced cost.
Sealed Structure
About the Sealed Structure
The top
end of the shell pipe is narrowed, oil and gas are injected, and the whole unit
is sealed by crimping the metal. This new
approach massively shortens the production process. As a result, we have
succeeded in vastly cutting production cost.
Partial
Production Process of EnduraPro SP KIT
High Strength and Durability
Fortified Installation Points
Example:
Thickness comparison of front installation bracket for Honda Jazz/Fit GP5
OE Endurapro
For strut-type suspensions a thickness increase improves the strength and durability of the bracket attaching to the vehicle (steering knuckle) compared to OE shock absorbers. This higher rigidity of the knuckle's support also improves steering feel and makes the ride feel more stable. Please note that the thickness increase varies per vehicle model.
Fortified
Shell Case with Large Oil Capacity
The shell case, the key part of the shock absorber, is made of a high-strength material with tensile strength around 150% of the OE shell case. Weight increase is curbed by keeping the thickness of the cylinder wall the same. A bigger shell case diameter expands its oil capacity, for improved durability as well as a long-term stable damping force performance.
Example: Comparisons for the Honda Jazz/Fit (GP5)
Shell
Case Tensile Strength
| OE | EnduraPro SP KIT | |
|---|---|---|
| Tensile Strength (Mpa) | 340 | 510 |
Shell
Case Diameter
| OE | EnduraPro SP KIT | |
|---|---|---|
| Front Shock Absorbers | φ45 | φ55 |
| Rear Shock Absorbers | φ45 | φ50.8 |
Please note: tensile strength and diameter of shell case vary per vehicle model.
High-performance damper oil
Exhibiting
a stable viscosity in a broad temperature range, the high-performance damper
oil sustains smooth strokes and a reliable damping force under all kinds of
circumstances. It has excellent anti-foaming properties that protect it from
cavitation (bubble-forming), and is resistant to overheating, so that it works
noiselessly even on rough roads. The damper oil keeps up its superior
performance long-term, because it is also resistant to deterioration over time.
Hydraulic bump stopper (H.B.S)
More
comfort and higher durability at maximum passenger and cargo load.
How the H.B.S. Mechanism Works
When regular shock absorbers fully stroke, their bump rubbers are compressed. The energy that is generated by that escapes as a repulsive force, which can disturb the vehicle's behavior. Furthermore, repeated full strokes can damage the damper.
In the same situation EnduraPro PLUS SP KIT, featuring H.B.S., internally convert the impact of the stroke to thermal energy (heat) and absorb it, strongly reducing the impact that disturbs the vehicle's behavior. With less damage to the dampers, H.B.S. also contributes to their durability.
Driving over a bump, the vehicle jolts and bounces. It takes a while to regain control.
The
vehicle smoothly processes the impact, does not bounce, and its behaviour
swiftly stabilizes.
The Hydraulic Bump Stopper (H.B.S.) Mechanism
In shock absorbers with inactive or no H.B.S., the operative valve (green) floats, and oil flows freely through the base valve ports. Resistance to the flow from the shim stack then, causes damping force.
Near full compression, when the piston rod strokes beyond a predetermined point, the operative valve is pushed down and activates H.B.S.: the base valve ports are narrowed, blocking the oil flow. This results in high damping force.
A relief valve serves to suppress sudden damping force increase, when the pressure in the cylinder exceeds its regular level.
The
setup of the H.B.S. mechanism is optimized per vehicle model, with the right
activation point and damping force.
Twin-Tube system
Compared
to the regular mono-tube system, twin-tube attains longer strokes with a
smaller repulsive force, resulting in high ride comfort.
Roads may have all sorts of surface conditions. This calls for shock absorbers with ample stroke, that operate smoothly.
Thanks to flexible strokes, you can negotiate gaps and bumps steadily on rough roads, meaning a smooth ride at low speed and stability at high speed.
IMPORTANT PLEASE READ!
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