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).
Power loss and noise issues with a super sports exhaust system.
| Identifier | WestWitteringFiles\S\September1928-October1928\ Scan199 | |
| Date | 27th October 1928 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c.c. to BJ. WoR.{Arthur Wormald - General Works Manager} c.c. to R.{Sir Henry Royce} DA.{Bernard Day - Chassis Design} c.c. to BY.{R.W. Bailey - Chief Engineer} ORIGINAL Hsl/LG27.10.28. SUPER SPORTS EXHAUST SYSTEM. X7230 / X7771 We attach curves which shew the loss due to the exhaust manifold. As this comparison was made with free exhaust it appears to be quite satisfactory as regards the minimum power loss. We certainly think we shall have to do something as regards getting rid of the noise which emanates due to the thin exhaust manifold. Hs.{Lord Ernest Hives - Chair} | ||