OM Exhaust Manifold Thread
OM Exhaust Manifold Thread
(09-15-2010, 05:08 AM)ForcedInduction Intake and exhaust manifolds from a 78-79 300SD. They eliminate the EGR completely and the exhaust manifold flows more freely due to larger passages.Are you sure that the later manifolds didn't narrow up the passages to keep the velocity up on the exhaust gasses to spool the turbo at lower rpms?
(09-15-2010, 05:08 AM)ForcedInduction Intake and exhaust manifolds from a 78-79 300SD. They eliminate the EGR completely and the exhaust manifold flows more freely due to larger passages.Are you sure that the later manifolds didn't narrow up the passages to keep the velocity up on the exhaust gasses to spool the turbo at lower rpms?