Defric coating (Lubricous film) is applied to the piston skirt, for a reduction in friction and loads as well as improved durability.
3SG (SW20) Low Comp Forged Piston KIT for TURBO
3SG (SW20) for TURBO
Crown Volume *1
Projection Height *2
Reference C/R *3
Standard head GK t=1.5mmξ≈8.3:1 (ver.I, II) / t=1.2mmξ≈8.7:1 (ver.III, IV)
*1:Crown volume is measured "from the piston shoulder"/"from the deck of the block".
*2:Piston shoulder height is measured from the deck of the block.
*3:The compression ratios given above are only to be taken as a guide, measurements are required.