19-06-2018, 03:58 PM
I have a '32 RN box saloon with front gravity tank (No pump). I am thinking of fitting an 1 1/8" Side draft SU carb. The standard 22FZ is updraft and lies below the fuel level in the tank (Hence no need for a pump). I see that most of the SU conversions use the later Manifold (1933 onwards) with an adaptor plate, but that may not work without a pump to deliver fuel as the carburettor fuel bowl is above the bottom of the tank.
I am thinking of making a 90 degree adaptor to fit on the existing inlet manifold and using a 90 degree copper (plumbing) elbow to a new flange for the carburettor. This would keep the SU fuel bowl below the bottom of the tank.
Would it work, or is the bore of the existing pre '33 inlet manifold too small?
What would the gas flow be like adding an extra bend into the inlet manifold ?
Bob H
I am thinking of making a 90 degree adaptor to fit on the existing inlet manifold and using a 90 degree copper (plumbing) elbow to a new flange for the carburettor. This would keep the SU fuel bowl below the bottom of the tank.
Would it work, or is the bore of the existing pre '33 inlet manifold too small?
What would the gas flow be like adding an extra bend into the inlet manifold ?
Bob H