The 1974 type 911/93 (50-state):
Early (’66-’74) exhaust, 11- blade fan (1.3:1), no air pump, no EGR, 175 hp.
© 1973 Dr. ing. h.c.F. Porsche A.G.
(This image is actually a ’73.5 911T CIS but the exhaust is the same.)
The 1975 type 911/43 (49-state):
The 1st version 49-state exhaust, 11-blade fan (1.3:1), air injection, air pump drive ratio 1:1, air pump pulley 110 mm, no EGR, 157 hp.
© 1974 Dr. ing. h.c.F. Porsche A.G.
© 1974 Dr. ing. h.c.F. Porsche A.G.
© 1974 Dr. ing. h.c.F. Porsche A.G.
© 1974 Dr. ing. h.c.F. Porsche A.G.
© 1974 Dr. ing. h.c.F. Porsche A.G.
The 1975 type 911/44 (California):
Thermo reactor exhaust, 11-blade fan (1.3:1), air injection, EGR, 152 hp.
© 1974 Dr. ing. h.c.F. Porsche A.G.
© 1974 Dr. ing. h.c.F. Porsche A.G.
© 1974 Dr. ing. h.c.F. Porsche A.G.
© 1974 Dr. ing. h.c.F. Porsche A.G.
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