Editing Ferrari Colombo engine (section)

==125==
[[Image:1947 Enzo Ferrari engine dept.jpg|thumb|left|[[Enzo Ferrari]] and his engine department work on the 125 S engine in 1947]]
[[File:Ferrari 125 F1 engine.jpg|thumb|left|The V12 engine used in the 125 F1 (early version)]]
[[File:1947 Ferrari 125 S.jpg|left|thumb|125 S at the [[Museo Casa Enzo Ferrari]]]]
The first Ferrari-designed engine was the {{cvt|1496.77|cc|L CID|1}} V12 '''125''', the work of Gioacchino Colombo and assistants [[Giuseppe Busso]] and {{ill|Luigi Bazzi|it}}.<ref name=fcom/> The engine's name, and the car powered by it, the [[Ferrari 125 S|125 S]] sports racer, were derived from the tiny {{cvt|124.73|cc|1}} {{cvt|55|mm|2}} by {{cvt|52.5|mm|2}} [[Cylinder (engine)|cylinders]]. The [[single overhead camshaft]] 60° V design had one cam on each [[cylinder bank]], two valves per cylinder, and three 30DCF [[Weber carburetor]]s. A 7.5:1 [[compression ratio]] yielded {{cvt|118|PS|hp kW|0}} at 6800&nbsp;rpm. First appearing May 11, 1947, the engine allowed the company to claim six victories in 14 races that year.

Colombo and Ferrari had designed the engine with [[Formula One]] regulations in mind, and introduced it the next year in the company's first F1 car, the [[Ferrari 125 F1|125 F1]]. This time, it was [[supercharged]], in accordance with F1 dictates, for a total output of {{cvt|230|PS|hp kW|0}} at 7,000&nbsp;rpm. However, the single-stage [[Roots-type supercharger|Roots-type]] supercharger was incapable of producing the high-end power required to compete with the strong eight-cylinder [[Alfa Romeo 158]] and four-cylinder [[Maserati 4CLT]]. Nevertheless, strong driving and a nimble chassis allowed the company to place third in its first outing, at the Valentino Grand Prix on September 5, 1948 and the company persevered in racing.

For 1949, the engine was further modified with [[dual overhead camshaft]]s (though still two valves per cylinder) and a two-stage supercharger.<ref>{{Cite news|url=https://jbrcapital.com/ferrari-finance/v12-ferraris-the-engine-that-made-ferrari/|title=The Story of the V12: The Engine That Made Ferrari|work=JBR Capital|access-date=2018-04-23|language=en-GB}}</ref> This combination gave the car better top-end performance and the resulting {{cvt|280|PS|hp kW|0}} gave it five Grand Prix wins. Development continued the following year, but the problematic superchargers were dropped in favor of larger [[Engine displacement|displacement]] and Lampredi's [[Ferrari Lampredi engine|275 engine]] superseded the original Colombo design.

Applications:
* 1947 [[Ferrari 125 S]] &mdash; {{cvt|118|PS|hp kW|0}}
* 1948 [[Ferrari 125 F1]] &mdash; Single supercharger, {{cvt|230|PS|hp kW|0}}
* 1949&ndash;1950 [[Ferrari 125 F1]] &mdash; Dual-stage supercharger, {{cvt|280|PS|hp kW|0}}