Trying to finish plumbing my twin 70mm on3 turbo setup and have the 10an fitting and hoses done to the oilpan but cant find a fitting that fits the inlet oil passage.it isnt 1/8 or 3/8 , any ran into this yet? I have 4an hoses to bring in oil pressure with but damn'd if i can find a fitting to do it with appreciate some help!

 

Try a Brake line fitting..Might work

 

it might be metric since it's a china turbo

 

It is wynton in ebay sells thr screw it fitting but i gta hold of on3 and got the feed plates from them.i can screw a 1/4npt fitting oil line into those and connect at the block with 4an