We love small-scale engines. Of course, small-scale relies on the context – this 0.07-liter V12 is positively minuscule in comparison with the 6.5L 12 lunger in a brand new Lamborghini Revuelto. But it is truly a good chunk bigger than previous model engines we have seen, and it has a sound to match its measurement.
The engine is featured within the newest JohnnyQ90 video. Despite its measurement (72cc or 4.4 cubic inches of displacement), this V12 has all of the complexity of a high-revving Italian mill. Four camshafts and 48 valves are packed into the heads. Spark comes from twin distributors, and the uncovered entrance reveals a maze of belts driving the cams, water pump, and oil pump. A big radiator options an electrical fan that kicks on when temps attain roughly 150 levels Fahrenheit. And delightfully twisty exhaust headers exit into a big muffler.
Fortunately, the muffler would not smother the sound on this software. We’ve heard small open-header V12s before, they usually sound nice. This one, nevertheless, has a deeper rumble that sounds downright imply at idle. A laser-powered RPM meter reveals this V12 idling at round 1,700, burbling with a bass we would count on in one thing bigger. Under throttle, we get a correct V12 soundtrack because it revs to round 7,500 RPM. Some extra tuning is likely to be essential on this engine; it is not a 10,000-RPM screamer like the inline-six model we noticed in October. But we’re not complaining.
According to the video, the engine runs on 95-octane gasoline and requires 80ml of oil. It’s additionally nonetheless within the growth section, however issues appear fairly effectively dialed in proper now. There aren’t any leaks, no apparent failures, and it fires proper up. It additionally drains the gasoline tank reasonably rapidly, however such is the worth for having a practical combustion engine perched in your desk.
This V12 is not on the market (but, anyway) however the video description factors us to Stirlingkit.com the place a plethora of small engines can be found. We’ll take the 28cc supercharged V8, please.