Rolls-Royce Archives
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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Power curve graph for the 7983 c.c. 8-litre Bentley engine, comparing Bentley and R.R. timing.

Identifier  ExFiles\Box 102\5\  scan0138
Date  24th June 1932 guessed
  
RM.{William Robotham - Chief Engineer} P 56
7983 C.C. 8 LITRE BENTLEY POWER CURVE
5-1 COMP RATIO
OPEN EXHAUST
BENTLEY TIMING
108° SHAFT
10°
12°
Ex
IN
INLET CLEE .019
EXHAUST .006/.019
45
50
INLET 235°
EXHAUST 242°
R.R. TIMING W.W. 114° SHAFT
27.5°
Ex
IN
.020 CLEE
52
49
INLET 230°
EXHAUST 236°
Bentley Power Curve 1
R.R. P.I.M.E.P. CURVE
B.H.P.
P.I.M.E.P.
BENTLEY
VALVE DIA: INLET 1.38
EXHAUST 1.34
INDUCTION SYSTEM
2 S.U. CARBURETTERS
R.P.M.
  
  


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