Single to twin turbo
I suppose so but I'm no expert. I've always been amazed that while the feed has a miniscule hole , that admonition has been for -10an and larger for the drains. I just follow what has gone on before me though. Certainly seems to work.
I went from a single PT7675 to twin GT35's (made my own hot/cold sides). With the single turbo, I had a -10AN on the passenger side of the oil pan, up near the rail, While I was gathering parts for the twins, I came across a nice timing cover (ICT Billet?) that had two -10AN drain fittings welded on. Nice piece but they don't warn you that their cover doesn't have the little water pump bolt reliefs. I ended up grinding the bolt heads off near flat.. Clears fine now.
How much of a 'drop' do you have in your lines from the turbo's proposed position to the oil pan? Hopefully, somewhat substantial.
What size turbos are you going with?
Good luck on your efforts.
I went from a single PT7675 to twin GT35's (made my own hot/cold sides). With the single turbo, I had a -10AN on the passenger side of the oil pan, up near the rail, While I was gathering parts for the twins, I came across a nice timing cover (ICT Billet?) that had two -10AN drain fittings welded on. Nice piece but they don't warn you that their cover doesn't have the little water pump bolt reliefs. I ended up grinding the bolt heads off near flat.. Clears fine now.
How much of a 'drop' do you have in your lines from the turbo's proposed position to the oil pan? Hopefully, somewhat substantial.
What size turbos are you going with?
Good luck on your efforts.
Thread Starter
Staging Lane
Joined: Aug 2020
Posts: 73
Likes: 1
I suppose so but I'm no expert. I've always been amazed that while the feed has a miniscule hole , that admonition has been for -10an and larger for the drains. I just follow what has gone on before me though. Certainly seems to work.
I went from a single PT7675 to twin GT35's (made my own hot/cold sides). With the single turbo, I had a -10AN on the passenger side of the oil pan, up near the rail, While I was gathering parts for the twins, I came across a nice timing cover (ICT Billet?) that had two -10AN drain fittings welded on. Nice piece but they don't warn you that their cover doesn't have the little water pump bolt reliefs. I ended up grinding the bolt heads off near flat.. Clears fine now.
How much of a 'drop' do you have in your lines from the turbo's proposed position to the oil pan? Hopefully, somewhat substantial.
What size turbos are you going with?
Good luck on your efforts.
I went from a single PT7675 to twin GT35's (made my own hot/cold sides). With the single turbo, I had a -10AN on the passenger side of the oil pan, up near the rail, While I was gathering parts for the twins, I came across a nice timing cover (ICT Billet?) that had two -10AN drain fittings welded on. Nice piece but they don't warn you that their cover doesn't have the little water pump bolt reliefs. I ended up grinding the bolt heads off near flat.. Clears fine now.
How much of a 'drop' do you have in your lines from the turbo's proposed position to the oil pan? Hopefully, somewhat substantial.
What size turbos are you going with?
Good luck on your efforts.
TECH Regular
Joined: Jul 2019
Posts: 460
Likes: 44
I run 10An off each turbo and T fitting to a single 10AN into my scavenger pump, then single 10AN to my pan.
without pump it wouldn’t work. Not enough angle and tons of oil come out of my turbos so prob would use a dual lines if no pump.
without pump it wouldn’t work. Not enough angle and tons of oil come out of my turbos so prob would use a dual lines if no pump.
