Reinforced Valve Springs AUDI 2.5 TFSI CEPA CEPB CZGB DAZA DNWA

The reinforced springs kitSUPERTECH is composed of20 Springsand 20 cupsand the kitFERREAis composed of20 Springs, 20 cupsand20 seats.

Technical characteristics

• Springs type: single
• External diameter of the conical spring: 24.00 mm
• Internal diameter of the conical spring: 16.50 mm
• Tare / mounted length: 33.11kg @ 37.40mm (Intake) /38.56kg @ 36.00mm (Exhaust)
  
• Taring / lifting:80.74kg @ 10.00mm (Intake) /86.18kg @ 10.00mm (Exhaust)
  
• Max lift: 12.50mm
• Reference: SPRK-A2416-5
  

Supertech Valve Springs are made from high quality chrome silicon vanadium steel alloy. This alloy has the advantage of offering superior performance and reliability, especially at high revs, and has better structural memory. Supertech Reinforced Valve Springs are computer designed to ensure harmonics remain under control and stress levels remain within material fatigue diagrams.

The Supertech cups are made of titanium alloy and machined by numerical control in order to obtain the best fit.

Technical characteristics

• Springs type: single
• External diameter: 22.38 mm
• Inner diameter: 15.52 mm
• Tare / mounted length:36.29kg @ 37.00mm (Intake) /38.56kg @ 36.50mm (Exhaust)
  
• Taring / lifting:81.65kg @ 27.00mm (Intake) /83.92kg @ 26.50mm (Exhaust)
  
• Max lift: 11mm (Intake) / 10.5mm (Exhaust)
  
• Reference: KT4042

As with Supertech, Ferrea reinforced valve springs are made from chrome vanadium steel and receive a heat treatment. These Ferrea Springs are developed so that harmonics and fatigue at high revs are under control (helps to avoid the Springs entering into resonance), they provide stability and reduced wear on the components of the Cylinder head. The design of these Springs also limits pressure loss.

Machined by numerical control, Ferrea cups are made of titanium.