Reinforced exhaust valves AUDI S2 RS2 3B ABY ADU

The reinforced intake valve kits SUPERTECH and FERREA for AUDI S2 and RS2 are composed of 10 valves.

Find below (click on the images) the engine accessories 3A, ABY and ADU:

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Technical specifications-

• Valve head diameter: 28.00mm (original) or 28.50mm (+0.5mm) or 29.50mm (+1.5mm)
  
• Valve stem diameter: 6.96mm
• Valve length: 98.20mm
• Materials: stainless steel or inconel or sodium inconel
  VWEVI-1035-HS

SUPERTECH valves are manufactured from a forged part which is then CNC machined for optimum precision. They then receive a heat treatment (different depending on the application of the valve) and are ground again (Super-finishing process). SUPERTECH valves are controlled by different means such as ultrasound, There are therefore different valve materials such as stainless steel, inconel, titanium, sodium (the latter is present in the valve stem and allows better heat dissipation). technical-

• Valve head diameter: 28.10mm (original) or 28.60mm (+0.5mm)
• Valve stem diameter: 6.93mm
• Valve length: 98.30mm
• Materials: Special Alloy
  
• Number of grooves: 1
  
• References: F6027, F6028

These valves are designed to obtain better reliability in all circumstances but also to improve the flow with a thinner stem at the valve head (Superflow Valve). FERREA develops different ranges/materials of valves in order to respond as closely as possible to the constraints of each engine and each application (atmo, turbo, nitro preparation, etc.).