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).
Blueprint graph comparing performance characteristics for various camshaft timings.

Identifier  ExFiles\Box 13\2\  02-page130
Date  21th August 1931
  
RM{William Robotham - Chief Engineer} P17.
COMPARISONS VARIOUS TIMINGS W.W. 114. CAMSHAFT.
4.75 C.R. SINGLE CLAUDEL CARB. OPEN EXHAUST.
21/8/31
B.H.P.
Timing Diagram 1:
IN
EX
10.4 5.2
51 62
.013 TAPPET CLCE
CAMSHAFT LEC 2918
Timing Diagram 2:
IN
EX
3 12
54 58
EXHAUST MANIFOLD OPEN
INDUCTION DEPN INS Hg
B.M.E.P.
Timing Diagram 3:
IN
EX
5 19.5
47 66.3
.013 TAPPET CLCE
20/8/31
INLET VALVE DIA 2.0" THROAT
INLET VALVE LIFT .470 EX LIFT .460
R.P.M.
  
  


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