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).
Performance graph comparing high and low lift rockers for a single carburettor Japan unit.

Identifier  ExFiles\Box 181\M13\M13.2\  img113
Date  6th October 1931 guessed
  
RM{William Robotham - Chief Engineer} 40
COMPARISON OF HIGH & LOW LIFT ROCKERS
WITH SINGLE CARB. JAPAN UNIT
INLET VALVE DIA 1.4 C/R 5.13/1
OPEN EX 112° CAMSHAFT E.55640
CLCE (MIN) OF .225 MACHINED ROUND INLET VALVE
VALVE LIFT .344
VALVE LIFT .395
CHOKE DIA. 38 M/M.{Mr Moon / Mr Moore}
DIFFUSER DIA. .625
FREE AREA PAST CHOKE 1.46 SQ"
B.H.P.
R.P.M
INS Hg.
INDUCTION DEPN.
Timing Diagram:
Ex.
IN
32 10.5
46.4
46
.013 CLCE
  
  


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