I never thought i would be posting in here but here i go:
Engine/Car:RB25DET
Type of failure: Smashed pistons and valve train
Factors influencing the failure: Timing belt too tight and was not checked. Snapped the idler pulley shaft.
State of tune of the engine:
CP pistons(9.0:1CR) 20thou over
Spool rods
Cometic 1.2mm MLS head gasket
Nissan gasket kit
Tomei valve springs
Tomei 256 Poncams
Tomei oil gallery restrictor
JUN crank collar
Custom head to sump oil drain
N1 oil pump
Greddy plenum
Greddy throttle adapter
Nismo 740c injectors
Nismo fuel pump
Nismo engine mounts
ARP head,main,rod and exhaust studs
ACL Race series main and rod bearings
Splitfire coils
GT3037 .82 turbo (has the slotted cover for that T51r sound)
GCG Stainless highmount manifold
Turbosmart 38mm Ultragate
All controlled by a Haltech E11v2.
Suspension and tyres: Stock suspension, sitting on 19s.
Oil used and service interval: Motul Turbolite 4100
General comments: Engine was running excellent and produced easy power with no stress. Just sucks that a cheap and overlooked part caused this big mess.
Engine is currently being rebuilt with new pistons, all new valve train ect ect