[turbonicsperformance]

drove it easy for 1k and moderate for 500 before ever going WOT. I've always broke in engines with 10w30 and never had a problem before. I only use conventional and occasionally if the customer requests it I will use an additive. during tech school I was always told to breakin the engine with the oil your going to use (except for synthetic) because it will allow the bearings to wear as they need to for that oil. My instructor was a GM instructor is on the ASE board and wrote 2 of the ASE tests so I trusted what he said and never had an issue with it before. i've built 80-100 engines that make alot more power than mine does I'm just at a wall with this engine unless i drop a ton of cash into it which i'd prefer not to do. so like i said i'll see what i can do with the oil cooler and i'll replace all the squirters and oil pump as well as completely flush all the oil passages and lines while the engine is apart and see if it helps. if not it looks like i'm swapping something else in, probably 1uz.
thanks for all the suggestions i'm 100% certain its going to end up being the oil pump. I found the other pump and pulled the part# off it and its from a gte which means the pump in my engine is a ge pump. also the cooler could be stuck open. I'll take some pictures and let you know what comes of this the engine will be out and on a stand by wednesday.