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).
Graph showing the effect of increased valve lift on a standard camshaft and cylinder head.

Identifier  ExFiles\Box 13\2\  02-page146
Date  24th November 1931 guessed
  
RM.{William Robotham - Chief Engineer} P.25
EFFECT OF INCREASED VALVE LIFT ON
STANDARD CAMSHAFT AND CYL HEAD.
TWIN CHOKE CARB. 1.4" CHOKES.
OPEN EXH: 4.75 C/R.{Sir Henry Royce} STD ALUM. HEAD 1.9 VALVE THROAT
VALVE LIFT .430
VALVE LIFT .480
.013 CLCE
EX
IN
68
51
54
B H P
R.P.M.
INDUCTION DEPN. INS HG
B.M.E.P. LBS / SQ"
  
  


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