as said oil pressure needs checking at entry to the turbo oil inlet.


I have a gauge for this ade used mine to check his feeds on the v6 cosworth.




ive never known yb pumps make much more than 70 psi anyway, but rb26s on modded pumps I have seen 130 psi which is a major concern for a bb core.


my 710 hp rb26 needed a restrictor fitting as it was leaking by the seal and smokeing, many people seem to just guess which is madness imo, its dependant on oil pump flow and the size of the feed line hose plays a part aswell as the bigger it is the more volume it will flow and a smaller restrictor will be needed.