4 Opposed Cylinders, 4 Stroke, Fed by a Supercharger
600 to 6000 RPM
Aluminium, Steel sleves
Special Aluminium aloy
Hardened nitrated steel on 3 journals
Aluminium , entirely grooved
"Soriano" , 2 blades spinning @ 1.75 times engine RPM
Overhead, directly actuated by cam shafts
Lubrication under pressure
Big diameter sfaft, lightened and drilled, mounted entirely on ball bearings
Dual counter rotating propellers (Patented)
With purging system
29'000 francs (January 1st 1931)
10 to 30 % down payment to the members of the Bayonne Canot-Club
In order to be allowed to participate in the standard class, it is possible to remove the supercharger, and change the overhead cam shafts.
4 cylinder Soriano 1929-30
Soriano Nr. 511 as discovered, with original gas tank.
A Diamond in the rough.
Internals of the 4 cylinder Soriano... Nr 515
This early 4 cylinder Soriano was raced by Swedish racer
Early 4 cylinder with 4 nuts on Cylinder Head covers, and
not full casted eshaust. (held together by bolts)