So when we are reviewing supercars with killer V-8 engines, we are typically talking about 300-plus cubic-inches and hundreds of horsepower. Well, in the world of scale-model building, you have to take all of that muscle and scale it down to a size that can fit into a one-quarter scale model, and that takes some serious engineering.
For anyone that has ever assembled an engine, you know that keeping track of everything, putting the valves in correctly, seating the rings property, and other steps are immensely tedious, due the their complexity. Imagine doing so with everything shrunk down to a quarter of its original size.
That just so happens to be the specialty of Conley Precision Engines, and it has also just released for sale the world’s smallest supercharged, four-stroke V-8 engine. The Conley Stinger 609 displaces 0.1 liters, 100 cc, or 6.09 cubic-inches, depending on which standard of measurement you follow. Regardless of the measurement semantics, this engine is tiny, as it measures just 14 inches long x 6 inches wide x 8.25 inches tall and weighs in at a svelte 11.25 lbs.
As for power, this relative beast can crank out 5.5 horsepower at 9,500 rpm in its naturally aspirated state and hits 9 horsepower when you bolt up the optional supercharger. It’s the latter version that earns this engine it notoriety as a world-record holder.
You can have this engine for a base price of $5,695. Additionally you can add in stainless steel manifolds for $279, a set of polished-stainless manifolds for $595, painted valve covers for $125, high-duration camshaft for $279, and a supercharger for $1,695. That means in total, you can spend upward of $8,353 for this engine – obviously the price isn’t one-quarter scale.
Nine horsepower may not sound like much on the surface, but put in a one-quarter scale car, you will have a car that will easily eclipse the 100 mph mark. To boot, Conley engineered the engine to have the same rumble as any classic muscle that came from Detroit, just a little more high pitched.
Click past the jump to see more videos.