Okay this isn't as basic of a questionas you may think.
First off here is my proposed setup.
4cyl
390cfm 4bbl
Draw thru turbo
Carb will be adapted to the turbo and sit about level or a little higher then it would sit on the manifold normally. The elbow to the turbo will be a smooth bend, no more than 90 degrees.
Now onto the question.
I was thinking about the limits put on draw thru turbo systems to have a carbon seal on the compressor side to protect the turbo oil from getting sucked out under high vacuum when the throttle plates are closed...
Well I have an idea that I think will work.
I want to add a bypass runner from the elbow beneath the carb down to the intake manifold with minimal bends... It's a 4cyl motor so I can add the exit for the bypass at the rear of the manifold allowing for any air/fuel mixture that is sucked thru the bypas to be distributed evenly.
The valve supporting this system is a PCV style valve, closed under boost pressure and opened under vacuum.
Will it work?
And will this allow me to pic other turbos that don't have the seal?

- Thanks
First off here is my proposed setup.
4cyl
390cfm 4bbl
Draw thru turbo
Carb will be adapted to the turbo and sit about level or a little higher then it would sit on the manifold normally. The elbow to the turbo will be a smooth bend, no more than 90 degrees.
Now onto the question.
I was thinking about the limits put on draw thru turbo systems to have a carbon seal on the compressor side to protect the turbo oil from getting sucked out under high vacuum when the throttle plates are closed...
Well I have an idea that I think will work.
I want to add a bypass runner from the elbow beneath the carb down to the intake manifold with minimal bends... It's a 4cyl motor so I can add the exit for the bypass at the rear of the manifold allowing for any air/fuel mixture that is sucked thru the bypas to be distributed evenly.
The valve supporting this system is a PCV style valve, closed under boost pressure and opened under vacuum.
Will it work?
And will this allow me to pic other turbos that don't have the seal?
- Thanks