Toyota 4agze Supercharger Pistons

it's not only the matter of piston rings, 3 out of 4 of the pistons are crack! wow! it's really made me surprised! how the hell did the pistons crack?

2 logical reasons led to this problem;

1. over-boost
- for standard gsr, max boost is 0.8bar

2. insufficient/no engine oil
- insufficient engine oil will results extreme temperature inside the engine block which will cause the piston failure

but luckily, the cracked pistons didnt cause any damage to the cylinders. it helped me saves another thousand you know! haha

toyota 4agze supercharger piston
-with ceramic-coated on top of the piston head


the receipts (pistons, machine shop, labour)