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).
Technical specifications for the 'New Safety' Stutz vehicle, including engine, weight, and dimensional data.
| Identifier | ExFiles\Box 23\5\ Scan014 | |
| Date | 6th December 1927 | |
| X4336 6.12.27. NEW "SAFETY" STUTZ. Vertical 8 cyl. engine. Bore 3.250". Stroke 4.50". Piston displacement 298.64 cu.ins. = 4893.8 cc. H.P. (RAC.) 33.8. Comp: ratio not yet accurately measured; by rough measurement of head it is 4.150 to 1 - judging by detonations this figure is low. Valve timing at running clearance of .028". I.O. 7º P.T.D.C. E.O. 54º B.B.D.C. I.C. 55º P.B.D.C. E.C. 8º B.T.D.C. Max. valve lift (both inlet and exhaust) at running clearance .340". Firing order 1-6-2-5-8-3-7-4. Gear ratios : Top 4.75 : 1 2nd. 7.96 : 1 1st.15.29 : 1 Rev: 18.02 : 1 Engine revs. at 60 m.p.h. = 3.175 r.p.m. Weight of car complete with petrol, oil, water, tools, two spare wheels on wings :- Front : 2422 lbs. Rear : 2688 lbs. Total : 5110 lbs. Wheelbase 131". Track - front 59" rear 58". Cyl. block and crankcase one casting (C.I.) Weight with main bearings and caps = 437 lbs. 8 ozs. Weight of cyl. head with camshaft, valves, induction pipe and top water pipe = 187 lbs. 10 ozs. Approximate weight of engine and gearbox complete = 1200 lbs. Weight of gearbox complete = 137 lbs. --------------------- HS{Lord Ernest Hives - Chair}/AJL | ||