oil pan cap..

how much oil in a jeff johnsons aluminum bbc oil pan

have a 540bbc with a jeff johnsons 2 piece aluminum oil pan with the larger 4" kick-out and a block mounted[1 qt.]system 1 oil filter and titan oil pump[wet sump]
HOW much oil total should i be running???

 

Our johnston pan sounds similiar and its a 10 qt, but I thought jeff said if in doubt fill it up to the windage tray and no more.

 

I understand "fill it up to the windage tray", but it's notorious that the big hemis with thick oil trap a lot of oil upstair during the run. So, it's not overfilled for long with some extra quarts in the pan ????

 

I would start with 12 quarts and check pressure late into the run. If it has a quick drop under power, add oil. I have run as much as 15 in a wet sump BB Chevy that have pretty slow drain back.

 

thanks;;yes i was having that with oil pressure not even running down track on just start-ups..would have 80psi on start but as soon as i tap thottle she would drop to 30psi;;i only put 9qts in pan with block mounted oil filter dry..was hopping low oil was the reason....going drop pan bottom and pull a main cap and 1 rod cap and check to see if i hurt bearings or not..sure hope i didn't

 

bump please;;