24 high performance Supertech valves Golf 4 Golf 5 R32 241hp 250hp
Here is our Kit of 24 Supertech forged high performance SUPERTECH , compatible with:
- Golf 4 R32 241hp
- Golf 5 R32 250hp
Supertech short exhaust valve characteristics Golf 4 R32 Golf 5 R32 | Supertech long exhaust valve characteristics Golf 4 R32 Golf 5 R32 |
Material: Inconel and nitrided Head diameter: 30.15mm Shank diameter: 5.96mm Length: 102.2mm (Standard) | Material: Inconel and nitrided Head diameter: 30.15mm Shank diameter: 5.96mm Length: 136.10mm (Standard) |
Supertech short inlet valve characteristics Golf 4 R32 Golf 5 R32 | Supertech long inlet valve characteristics Golf 4 R32 Golf 5 R32 |
Material: Inconel and nitrided Head diameter: 33.15mm Shank diameter: 5.97mm Length: 102.05mm (Standard) | Material: Inconel and nitrided Head diameter: 33.15mm Shank diameter: 5.97mm Length: 136.04mm (Standard) |
In this pack the valves are forged and in INCONEL. They also receive a nitrided treatment.
Nitriding is a gas treatment which consists in making nitrogen penetrate into the steel then, the nitrogen forms nitrides with the iron and the alloying elements, the nitrides are very hard ceramics.
Nitriding makes it possible to obtain a high hardness of the surface favoring a high resistance to wear, friction, abrasion and seizing. Fatigue resistance is increased mainly by the development of compressive surface stresses
The nitrided treatment on Supertech valves increases the hardness of the surface by improving resistance:
- to wear
- to friction
- seizing
- corrosion
The pack contains:
- 6 INCONEL long Supertech single groove intake valves
- 6 INCONEL short Supertech single groove intake valves
- 6 INCONEL long Supertech single groove exhaust valves with nitrided treatment
- 6 short INCONEL Supertech single groove exhaust valves with nitrided treatment
WARNING : Item not compatible with Golf 4 v6 4motion 2.8L 24V
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