Set of four pistons supplied including 4 x piston ring sets, 4 x gudgeon pins and circlips.
Wossner Forged Piston & Pec Steel Rod Package, for Hyundai i30N & N performance, Generation 1 & 2 Cars
The Wossner pistons for the i30 feature a unique Moly coating on the skirts which allows the builder to run a much closer piston to bore tolerance than might be required on other piston makes. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances.
The piston crowns are mirror polished to better resist detonation on a high performance engine. Mirror polishing allows a more even spread of heat inside the chamber which will help prevent “hot spots” on piston crowns.
Includes piston rings and gudgeon pins.
For any engine rebuild we recommend and use oversize pistons (86.5mm) which requires a mild re-bore and plateau hone to ensure correct piston to bore clearance to allow the pistons and bores bed in correctly.
Using standard sized pistons (86mm) in bores that have already been subject to wear (i.e. use) or bores that have not been machined to the specified clearances of the pistons, inevitably lead to pistons being noisy particularly on cold start and the bores not bedding in properly, which results in high oil consumption.
Standard sized pistons recommended for use in Brand new engines or as new engine only.