WOSSNER/ZRP – ENGINE KIT PISTONS WOSSNER 1.4 TJET – 1.4 MULTIAIR + ZRP I-BEAM CONNECTING RODS

WOSSNER IS CONSIDERED BY LEADING EUROPEAN MOTORSPORT ENGINE BUILDERS TO BE THE PISTON OF CHOICE WHEN BUILDING AN ENGINE NOT ONLY FOR PERFORMANCE, BUT ALSO TO WITHSTAND THE STRESSES AND STRAINS OF RACING LIFE. WOSSNER PISTONS FEATURE A UNIQUE PTFE SKIRT COATING AND A 4032 (T6) ALLOY GRADE THAT ALLOWS THE ENGINE BUILDER TO RUN A PISTON CLOSER TO THE TOLERANCE THEY MIGHT HAVE ON ANOTHER BRAND PISTON.
THIS HELPS ELIMINATE THE SQUEAKING NOISE DURING COLD STARTS, COMMON AMONG ENGINES RUNNING FORGED PISTONS DUE TO LARGER-THAN-OE BORE CLEARANCES. THE PISTON CROWNS ARE ALSO POLISHED TO BETTER RESIST DETONATION ON A HIGH-PERFORMANCE ENGINE. THE POLISHING ALLOWS FOR MORE EVEN HEAT DISTRIBUTION WITHIN THE CHAMBER, HELPING PREVENT “HOT SPOTS” ON THE PISTON CROWNS. THE PRICE INCLUDES ALL PISTON RINGS AND PINS. THE ZRP H-BEAM AND I-BEAM CONNECTING RODS ARE FORGED FROM AISI 4340 (EN24) STEEL. HEAT TREATED TO HRC 35-38 AND THEN SHOT PEENED FOR GREATER FATIGUE RESISTANCE. THE SMALL ENDS ARE BUSHINGS FOR A FULLY FLOATING PIN, AND THE BIG ENDS FEATURE HIGH-QUALITY ARP FASTENERS WITH DIFFERENT SPECIFICATION BOLTS AVAILABLE DEPENDING ON THE PERFORMANCE LEVEL REQUIRED. SPECIFIC KIT FOR: 1.4 TJET / 1.4 MULTIAIR PISTONS: WOSSNER COMPRESSION RATIO: 9.8:1 DIAMETERS: 72.00 / 72.50 / 73.00 PISTON PIN: 18 CONNECTING RODS: ZRP CONNECTING ROD MODEL: I-BEAM