Sorry guys it took me a while to come back to this forum (dropped computer and was having it fixed).Anyways we disassebled the engine and found no.4 rod bearing chewed up due to the crankshaft rod journal being cracked lenghtwise,also some of the other rod journals had hairline cracks lenghtwise.Never seen this before.BTW its a turbo engine with stock internals.We have have the same setup on an ae86 corolla running 20psi with stock everything(makes427hp) and had no issues.
Anyways thanks for the help.
P.S. Oiling system is stock we just shim pump for higher pressure.