Supertech pistons are forged from aluminium alloy for high performance and superior strength while maintaining low weight. Using a 4032 alloy (an aluminium alloy containing Silcon, nickel, magnesium & copper) the piston achieves a high temperature tolerance value meaning its deformation at high temperature is minimal.
The pistons are also available in different compression ratios as follows: 10:1 for the N14 JCW engine 10.5:1 for the Cooper S engine The 10:1 compression ratio can be installed into the Cooper S N14 also it is advisable to couple this ECU tune to ensure running and get the most out of the engine build.
The piston is slightly shorter so there are no fouling issues when using the standard MINI camshaft. Other camshafts may require piston machining.
Please note: This kit includes a set of piston rings for each piston