s50 engine swap

Post Mon Jan 10, 2011 6:22 pm

hi,i am in the process of fitting a s50b32 engine in my e30,when i changed the sump over i noticed that on the m3 sump ther is a small black tube coming from the air intake to the sump,but on the 525 sump ther is no conection for it,is this just blanked off?can anyone help?

Post Mon Jan 10, 2011 7:17 pm

that pipe needs to be fitted.
you could either 'tap & die' the sump, and put a fitting there to put the pipe to,
or you could weld a small tube to the bottom part of the dipstick tube and attatch the pipe there. or you could get someone to ally weld a fitting on the sump to attatch the pipe to.

Post Tue Jan 11, 2011 9:12 am

i have been told to blank them off and it wont cause a problem,what are they actually for?

Post Tue Jan 11, 2011 12:38 pm

Oil drain..

Post Tue Jan 11, 2011 2:16 pm

Could you not run it to a catch tank? Suppose it would still need a feed to the sump?

Post Tue Jan 11, 2011 3:14 pm

It's only to drain oil that ends up in the plenum..

Post Tue Jan 11, 2011 7:41 pm

so i can blank them off?

Post Tue Jan 11, 2011 9:00 pm

i thought it was part of the crankcase ventilation, as well as an oil drain return?

Post Tue Jan 11, 2011 10:46 pm

moggie wrote:so i can blank them off?

It's there for a reason. Just connect it as it's supposed to be.

Ian