I am curious as to what size feed line I should be running on my S91 turbo. It's obviously not a BB turbo so it's going to need more pressure and oil getting through there. But is -4 going to be just fine without a chance of having any problems or do I need to step up to a -6? The car has not been fired yet and I do not want any problems with that new turbo sitting on there. Your help and suggestions would be greatly appreciated.

BTW. I have done a search here on ls1tech for this and have came up with nothing other then if you have a BB turbo... Thanks again!

 

I run a -4 with my FI-98X turbo. No issues whatsoever. Run a big drain line though. I run a -12

 

^^^^^^Same here....

 

we tend to start with -4 and restrict down from there if needed.

 

Thanks for the info guys! It's much appreciated!

 

I double checked, mine is a -3 feed, -12 return.

 

Oil feed and drain kits available if anyone needs help