I'll start the ball rolling:
engine 1 - R33 s1 RB25DET - 250,000km
mods: HKS GT2835 Pro S, 555cc injectors, fmic, custom CAI, atmo catchcan, other non related mods
fuel: bp ultimate / manildra e85
power: 280rwkw / 325rwkw
oil: motul 4100 turbolight 10w40
useage: daily /light trackwork
lifespan: 3 years
failure: spun bigend bearing
comments: motor also ran 185rwkw for about 5 years prior and was from a car that was tracked in japan as far as I can tell. motor had a very hard life.
engine 2 - Stagea 25 - modded for rwd - s2 RB25DET - 70,000km
mods: HKS GT2835 Pro S, 555cc injectors, fmic, custom CAI, atmo catchcan, other non related mods
fuel: bp ultimate / manildra e85
power: 290rwkw / 325rwkw
oil: castrol edge 10w60 (98 ron) / motul 6100 15w50 (E85)
useage: daily /light trackwork
lifespan: new motor - was stock power in an auto stag till now
failure: n/a
comments: New motor has a bigger sump (26 block) and is being run on heavier oil. Tuner is same and bolton's are same. So far it is more responsive, more powerful and everything is looking positive.