Rolls-Royce Archives
         « Prev  Box Series  Next »        

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 a large valve cast iron head with a standard aluminum head on a PI unit.

Identifier  ExFiles\Box 13\2\  02-page099
Date  12th June 1930
  
POWER TESTS ON PI UNIT WITH
4.9:1 COMP RATIO
A.{Mr Adams} LARGE VALVE HEAD (CAST IRON)
B. STANDARD (ALUM)
TESTS WITH OPEN EXHAUST
RR-CM EAGLE & CARB. 1.800 CHOKE
R TYPE 110° CAMSHAFT TO (V.1132)
LARGE VALVE HEAD TO E.80170/1/2
V.1169
B.H.P
B.M.E.P
R.P.M.
C.W.S.
12.6.30
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙