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 an original standard camshaft with a present production camshaft for a Phantom II 8 Litre No.7 unit.

Identifier  ExFiles\Box 123\3\  scan0172
Date  20th March 1934
  
H.S. 1338
PHANTOM II 8 LITRE N°7 UNIT
COMPARISON BETWEEN ORIGINAL STD. CAMSHAFT (116° E 80070) & THE PRESENT PRODUCTION CAMSHAFT (114° E 82448)
PRODUCTION S.E. CARBURETTER - LARGE INLET VALVE HEAD 5-25 C.R.
OPEN EXHAUST (SHORT PIPES)

* 114° E 82448 CAMSHAFT | TIMING IO° TDC | E.O. 53.5° BBDC | E.C. 4° PTDC
.020 CLE. I.C. 47.7° PBDC

o 116° E 80070 CAMSHAFT | TIMING I.O. 8° PTDC | E.O. 52.2° BBDC | E.C. TDC
.020 CLCE I.C. 43.2° PBDC

B.H.P.
M.E.P. (LBS/□)
R.P.M.
  
  


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