Hi guys, Today is the worst day of my life just rebuilt my engine completely forge with new wiseco piston scat rods,arp bolts on crank,rods,and head,acl bearing and oil pressure valve has been modified.After a smooth driving of 1500 km distance I decided to map the car.When I rev hard at 7500 rpm I heard a loud noise coming from the engine and it cut off.I start the car again I feel the start is heavy and loud noise from the botom. Does anyone know what the main cause of this issue. in my opinion my rods bearing are fuck hope its doesn`t affect the crank shaft.Any idea.Please