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).
Results of oil temperature tests on a 35 EX car at Brooklands Track.
| Identifier | ExFiles\Box 107\2\ scan0136 | |
| Date | 27th May 1938 guessed | |
| RESULTS OF OIL TEMPERATURE TESTS ON 35 EX CAR AT BROOKLANDS TRACK. SHEET 1. TABLE DATA: COLUMN HEADERS: 1. CONDITIONS OF TEST 2. GEAR RATIO USED 3. WHETHER OIL COOLER FITTED 4. ATMOSPHERIC TEMP °C 5. ENGINE WATER OUTLET TEMP °C 6. ULTIMATE STEADY OIL TEMP AT INLET TO BEARINGS °C 7. ULTIMATE STEADY OIL TEMP AT INLET TO COOLER °C 8. OIL TEMP AT START OF TEST (TEMP) & DISTANCES COVERED BEFORE STEADY (MILES) 9. SPEED DURING TESTS & REMARKS TEST I: - Conditions of Test: FULL THROTTLE MAX SPEED RAD. SHUTTERS ADJUSTED TO GIVE WATER TEMP COLUMN 4 - Gear Ratio Used: OVERDRIVE - Whether Oil Cooler Fitted: YES - Atmospheric Temp °C: 11.0 - Engine Water Outlet Temp °C: 99.0 - Ultimate Steady Oil Temp at Inlet to Bearings °C: 107.0 - Ultimate Steady Oil Temp at Inlet to Cooler °C: 112.0 - Oil Temp at Start (Temp): 104 - Distance (Miles): 9 - Speed During Tests & Remarks: 90.4 M.P.H. LAP, 93.1 M.P.H. 1/2 MILE. TEST II: - Conditions of Test: EXACTLY AS TEST I. - Gear Ratio Used: DIRECT - Whether Oil Cooler Fitted: YES - Atmospheric Temp °C: 11.0 - Engine Water Outlet Temp °C: 100.0 - Ultimate Steady Oil Temp at Inlet to Bearings °C: 114.0 - Ultimate Steady Oil Temp at Inlet to Cooler °C: 123.0 - Oil Temp at Start (Temp): 110 - Distance (Miles): 12 - Speed During Tests & Remarks: 87.5 M.P.H. LAP, 90.9 M.P.H. 1/2 MILE. TEST III: - Conditions of Test: EXACTLY AS TEST I. - Gear Ratio Used: OVERDRIVE - Whether Oil Cooler Fitted: NO - Atmospheric Temp °C: 13.0 - Engine Water Outlet Temp °C: 102.0 - Ultimate Steady Oil Temp at Inlet to Bearings °C: 126.0 - Ultimate Steady Oil Temp at Inlet to Cooler °C: - - Oil Temp at Start (Temp): 108 - Distance (Miles): 24 - Speed During Tests & Remarks: 90.4 M.P.H. LAP, 93.1 M.P.H. 1/2 MILE. TEST IV: - Conditions of Test: EXACTLY AS TEST I. - Gear Ratio Used: DIRECT - Whether Oil Cooler Fitted: NO. - Atmospheric Temp °C: 13.0 - Engine Water Outlet Temp °C: 103.0 - Ultimate Steady Oil Temp at Inlet to Bearings °C: 138.0 - Ultimate Steady Oil Temp at Inlet to Cooler °C: - - Oil Temp at Start (Temp): 121 - Distance (Miles): 21 - Speed During Tests & Remarks: 87.5 M.P.H. LAP, 90.9 M.P.H. 1/2 MILE. TEST V: - Conditions of Test: AS TEST I BUT RADIATOR SHUTTERS FULL OPEN. - Gear Ratio Used: OVERDRIVE - Whether Oil Cooler Fitted: NO. - Atmospheric Temp °C: 13.0 - Engine Water Outlet Temp °C: 82.5 - Ultimate Steady Oil Temp at Inlet to Bearings °C: 110.0 - Ultimate Steady Oil Temp at Inlet to Cooler °C: - - Oil Temp at Start (Temp): 125 - Distance (Miles): 14 - Speed During Tests & Remarks: 88.7 M.P.H. LAP, 90.45 M.P.H. 1/2 MILE. TEST VI: - Conditions of Test: AS TEST I BUT RADIATOR SHUTTERS FULL OPEN. - Gear Ratio Used: DIRECT - Whether Oil Cooler Fitted: NO - Atmospheric Temp °C: 13.0 - Engine Water Outlet Temp °C: 87.5 - Ultimate Steady Oil Temp at Inlet to Bearings °C: 126.0 - Ultimate Steady Oil Temp at Inlet to Cooler °C: - - Oil Temp at Start (Temp): 126 - Distance (Miles): - - Speed During Tests & Remarks: - TEST VII: - Conditions of Test: CRUISING AT STEADY SPEED OF 80 M.P.H. RAD SHUTTERS SET TO GIVE WATER TEMP AS COLUMN 4 - Gear Ratio Used: OVERDRIVE - Whether Oil Cooler Fitted: NO. - Atmospheric Temp °C: 13.0 - Engine Water Outlet Temp °C: 90.0 - Ultimate Steady Oil Temp at Inlet to Bearings °C: 109.0 - Ultimate Steady Oil Temp at Inlet to Cooler °C: - - Oil Temp at Start (Temp): 109 - Distance (Miles): - - Speed During Tests & Remarks: 80 M.P.H. TEST VIII: - Conditions of Test: DITTO - Gear Ratio Used: DIRECT - Whether Oil Cooler Fitted: NO. - Atmospheric Temp °C: 13.0 - Engine Water Outlet Temp °C: 93.0 - Ultimate Steady Oil Temp at Inlet to Bearings °C: 121.0 - Ultimate Steady Oil Temp at Inlet to Cooler °C: - - Oil Temp at Start (Temp): 104 - Distance (Miles): 12 - Speed During Tests & Remarks: 80 M.P.H. | ||