Please find below an automatic translation in French. If you have questions please contact us.
Our special on valves and components supertech performance! This listing is for a complete set of valves 24 supertech std for all models vw gti r32.This list includes supertech part numbers. Head Diameter: 33.15 mm (inlet) 33,15 mm (inlet). Stem diameter: 5.97 mm (inlet) 5.97 mm (inlet) valve length: 136.40 mm (inlet) 102,50 mm (inlet). Head Diameter: 30.15 mm (exhaust inconel) 30,15 mm (exhaust inconel). Stem diameter: 5.97 mm (exhaust inconel) 5.97 mm (inconel exhaust) valve length: 136.10 mm (exhaust inconel) 102.50 mm (exhaust inconel).
Nitride black: it is a hardening treatment which, although it is not widely used as coating chrome, has several advantages and is becoming very popular, mainly for the European and Japanese applications. The micro-hardness is higher than the base material of stainless steel, retaining good ductility in the hard nitrided layer (the micro-hardness of 800Hv minimum).
The surface finish is more smooth than the chrome rods, with less friction between the rod and the guide. The surface of the valve seat is harder with the nitrided layer, and lasts longer with unleaded fuels, alcohols, nitro or other mixtures \Suitable for all types of seats (seats nodular iron, steel powder seats, seats aluminum-copper hard seats or beryllium copper).High-revving engines take full advantage of all the previous features. The higher the engine speed, the greater the loss of power due to engine internal friction is important! The layer of black nitride reduces the power loss due to less friction on the valve guide. The nitrided layer is adhered to the base material at a microscopic level, it \Black nitride applies to all of the valve while the chrome coating is applied only to the rod. All valves are polished by vortex, are undercut against rod and a hardened tip. We use over 30 years of experience in the development of each race supertech valve we sell.
Combine this experience with advanced equipment such as ultrasonic testing, x-rays, laser measuring equipment and applications such as computerized finite element analysis (fea) and it is not surprising that offers some of the best supertech performance products on the market. Although this is more than most manufacturers, we do not stop there. We also conduct extensive testing in close cooperation with many leading engine manufacturers to continuously improve our products.
All this is intended to ensure supertech industry leading reputation for its high flow, durability and uncompromising quality. Higher rates our valves are not finished from generic outlines, rather they are designed specifically for each application. We work tirelessly, testing and researching every aspect by trying to improve the airflow of our designs.
Durability with each valve design, we strive to maximize sustainability through fatigue and the highest tensile strength. Each valve end is cured beyond 52hrc. Super finish of the stem in 2006, we introduced our stem superfinishing as a standard addition to all our valves and have provided no additional cost. When our SuperFinish combined with our black nitrided valve, it reduces the surface roughness to 1/3 of our valve coated with chromium.The end result of unmatched performance and durability. Tighter dimensional tolerances it is unlikely that you find valves of our competitors with tighter dimensional tolerances that our supertech valves. Combine that with the finished seats with limit tolerances as strict and you will not find anywhere better sealing solution, more efficient and easier to install! For any questions regarding this announcement, please contact us! We are proud to offer the best price and the best customer service on the web! The item \engine parts \ valves \The seller is \This article can be shipped worldwide.