ARP 117-4228

Audi 2.5L TT-RS / RS3 ARP Head Stud Kit L19 Material

Este kit fue diseñado para pilotos de drag o street racers que usan motores con alto boost y necesitan más fuerza de sujeción y resistencia a la tracción que lo que puede ofrecer el kit de pernos ARP2000. Si buscas la mejor opción, la has encontrado, ya que estos son 15% más resistentes que los ARP2000 y tienen un 55% de aumento en resistencia a la tracción over the OEM torque to Yield (TTY Bolts). Due to many “head lifting” issues on Audi engines running in excess of 25 PSI, a stronger stud had to be custom made to meet the demands of today’s top engine builders and racers alike.

These studs are made from vacuum-melted alloy steel with sufficient chromium and carbon to achieve high hardness and superior strength. Like most high-strength, quench and temper steels, L19 requires special care during manufacturing to avoid hydrogen embrittlement. This material is easily contaminated and subject to stress corrosion. It must be kept well-oiled and not exposed to moisture. Recommended for applications boosting higher than 30 PSI. No modification to your VW Cylinder Head or Block is required as these are a direct drop-in replacement for the OEM Head Studs.

Torque Specification: 90 ft/lbs.
Límite elástico: 200-230.000 PSI
Resistencia a la tracción: 260.000 PSI

Nota: The nuts and washers included in this kit still utilize premium grade 8740 alloy as only the stud is subjected to increased pressure. Each kit includes a complete set of L19 head studs, nuts, and ARP Assembly Lubricant.