7 Of The Most Powerful 8-Cylinder Engines Ever Made – Jalopnik

In the world of combustion engines, there is a cylinder rely for everybody. Four-cylinder engines are among the many commonest on the highway at present, normally set inline or flat, and infrequently turbocharged to assist with effectivity and make up for the ability loss from the low cylinder rely. Occasionally, you may even see or hear a unusual five-cylinder, seemingly from an Audi, though you are extra prone to come throughout a six-cylinder of some type. Keep going and you will find the 10- and 12-cylinder engines of the world, usually nestled into the middle of high-performance supercars, or resting within the entrance of an govt sedan. You may even get your arms on a 16-cylinder engine from someplace like Bugatti, in the event you’ve obtained the need and the money.

This vary is huge, and proper within the center, you may discover eight-cylinder engines. Although they sometimes seem in flat or inline configurations, the overwhelming majority are part of the V household. The philosophy of the V8 is one which appears to know no bounds, spanning throughout oceans and continents. American, German, Italian, and Japanese manufacturers alike all produce their very own variations of the V8, every with its personal taste of fashion and talents. One overarching theme, although, is excessive energy. Wherever you come from, the V8 is related to excessive efficiency.

Every so usually, the Italian wizards at Maranello determine that considered one of their already spectacular creations merely is not sufficient. They normally conclude that the answer is to fiddle with aero bits, add a brand new suffix like “Speciale” or “Competizione” after which inject the engine with mechanical steroids. One instance of this phenomenon is the Ferrari 488 Pista, with that final phrase that means “track” in Italian. It’s a becoming identify, because the Pista is likely one of the quickest manufacturing automobiles to lap the Nürburgring. But how does it do it?

Rather than working with the bottom 488’s engine, the Pista’s model is derived from the 488 Challenge, the track-only racecar model of the roadgoing 488. Ferrari fully redesigned the exhaust manifolds and constructed them with Inconel alloy, a hardy and heat-resistant materials, a change that alone sheds 21 kilos. This development of redesigning parts and utilizing new supplies extends all through the internals, such because the connecting rods and crankshaft, all of which come collectively for a 40-pound loss. 

While the turbos themselves are untouched, the compression ratio is bumped from 9.4:1 to 9.6, and a brand new set of pace sensors permits the automotive to soundly spin the turbos to their absolute limits, growing increase to 21.6 PSI. All this turbo tech features a increase administration system that may financial institution and optimally distribute increase in partial-throttle conditions. In complete, this 3.9-liter V8 makes 710 horsepower.

The coin of the V8 has two sides that characterize totally different philosophies. Ferrari’s F154CD represents the unique, turbocharged taste of V8 whose inherent chaos is considerably tamed to assault racetracks with chilly calculation. The different aspect leans into that rambunctious nature of the V8, and there’s arguably no higher consultant for this college of thought than the Ford Mustang Shelby GT500’s Predator engine. Just because the GT500 is simply the GT350 however extra, the Predator relies on the GT350’s “Voodoo” V8, however extra. As is custom with an American V8, displacement is big — 5.2 liters within the case of the Predator, which is hand-built.

The greatest change from the Voodoo, and the defining attribute of the Predator, is its compelled induction. Nestled between the engine’s cylinder banks is a large 2.6-liter Eaton supercharger, working with 12 PSI of increase. To deal with all this, the internals in each nook and cranny have been strengthened. Ford additionally traded the GT350’s extra unique flat-plane crank for a cross-plane crank. This helps cut back engine vibration, however extra importantly, it’s pony-car purity within the sound division, producing the type of guttural, bellowing growl that reverberates within the ribcage as a lot because it does within the ear. Redlining at 7,500 rpm, this bodybuilder of an engine produces 760 wild American horses and solidifies the GT500 as an icon of the fashionable muscle automotive.

The McLaren P1 makes up one third of the hypercar holy trinity, and because it was unveiled in 2013, it has been arduous to think about how McLaren would method a successor. In October 2024, the W1 hypercar debuted with one of many wildest wings ever, and answered some questions. Like the P1, it boasts a strong hybrid powertrain, however its combustion engine is magnificent by itself. To put the capabilities of this engine – designated MHP-8 by McLaren – into perspective, we will examine it to the Senna GTR’s M840T, McLaren’s subsequent strongest engine.

The numbers present that the MHP-8 produces 102 horsepower extra and is 22 kilos lighter than the M840T. That weight reduction appears counterintuitive for the reason that MHP-8’s gas injection programs are bigger, as are turbochargers and exhaust runners. However, the engine block itself is smaller, and the electrical parts of the powertrain take over the duties of the alternator and starter motor, eliminating the necessity for these elements fully. 

Mounted exterior the engine’s valley, the pair of twin-scroll turbos reasonable and stagger exhaust pulses, which closely reduces turbo lag and makes for a extra linear powerband. McLaren additionally tuned them to offer increase at low revs, ensuring their advantages aren’t unique to the height of the rev vary. The automaker adjusted the place of the camshaft chain drives, amongst different issues, to orchestrate an pleasurable exhaust word. Without the electrical motors, the MHP-8 makes a staggering 916 horsepower.

If there’s any automotive that may compete with the GT500 because the poster little one of at present’s muscle automobiles, it needs to be the Dodge Demon 170, with its legendary Hellcat engine. The story of the Hellcat engine is the stuff of goals for muscle automotive lovers. When it was launched in 2015, the Hellcat made 707 horsepower, and within the subsequent years, Dodge simply stored including efficiency. The Hellcat line has all the time been about missile-like, straight-line pace, and when the primary Demon got here out in 2018, it appeared like Dodge had gone so far as it might go.

The Demon’s engine has an almost unquenchable thirst for air, which Dodge feeds with a large hood scoop and hole eye-socket intakes throughout the headlights, with the additional air consumption alone including 17 horsepower. On prime of that, the Demon’s A/C unit is recruited to chill air earlier than it is consumed by the engine, whose supercharger’s increase is elevated to 14.5 PSI and whose redline is bumped to six,500 rpm. On racing gas, the Demon made 840 horsepower, and its one-year manufacturing run was so profitable that Dodge gave it one other go along with the Demon 170. The 170 beefed up internals to deal with extra energy. Then, Dodge slammed an even bigger, 3-liter supercharger on prime with 21.3 PSI of increase. Running on E85, the Demon 170 makes a whopping 1,025 horsepower.

When the C8 technology of the Corvette debuted, some felt that it had strayed too removed from its roots, with the mid-engined structure within the vein of European exotics. But no matter your emotions towards this evolution, there’s one factor the C8 Corvette leans closely into: the muscle. As you climb the meals chain of C8 editions and trim ranges, you may come throughout the ZR1, which set Car and Driver’s new lighting lap report. The coronary heart of that ZR1 is the 5.5-liter, twin-turbocharged V8 — probably the most highly effective inner combustion engine Chevrolet has ever made.

Rather than an enhanced model of the LT6, the LT7 was developed on the identical time, permitting engineers to construction it for compelled induction from the start. This is the primary manufacturing facility turbocharged engine in a Corvette, that includes a pair of mono-scroll turbos that put out 20 PSI of increase. The aluminum cylinder heads and engine block maintain weight down, and the flat-plane crank is manufactured from cast metal to deal with the immense energy. It’s obtained brains, although, that includes a manufacturing facility anti-lag system. All this cleverness means 800 lb-ft of the LT7’s complete 828 lb-ft of torque is obtainable at 3,000 rpm. The C8 technology provides brains to the Corvette’s hereditary brawn, and the LT7 exemplifies this philosophy completely, placing out a large 1,064 horsepower.

Every few years, Christian von Koenigsegg and his staff of engineering wizards come out of their Ängelholm lair with a automotive whose skills appear unattainable. 2019 marked considered one of these situations, with the discharge of the Agera’s successor, the Jesko, which might be had in an aero-packed monitor model or because the top-speed-focused Jesko Absolut that ditches the enormous spoiler.

Made of aluminum, the Jesko’s 5-liter twin-turbo V8 is a masterwork of automotive engineering. As is the norm with unique V8s, the Jesko is constructed with a flat-plane crank, which produces an exquisite sound and helps steadiness power throughout the cylinder banks. Supplementing the engine’s sonic skills, Koenigsegg’s LST transmission eliminates the necessity for a flywheel, permitting the engine to hit its 8,500 redline from idle in simply 0.2 seconds. Much of the ability comes due to a pair of ceramic ball bearing turbos. 

On pump fuel, they already produce a large 24.7 PSI of increase, and on E85 they will make an astonishing 31.9 PSI. As if that weren’t spectacular sufficient, Koenigsegg has virtually eradicated turbo-lag, due to an in-house turbo response system. This intelligent workaround works by banking air into an auxiliary tank, which pressurizes air to 290 PSI, which may then be shot into the turbos to spool them nearly immediately. This helps the Jesko’s V8 produce 1,281 horsepower on pump fuel, and 1,600 horses on E85.

There are few issues extra purely American on this world than Texas-based tuning firm Hennessey. Much of its portfolio consists of closely modified muscle automobiles and vans, however the crown jewels have all the time been in its bespoke, face-ripping highway missiles just like the Venom GT and its successor, the Venom F5. 

The Venom F5’s engine, known as “Fury” by its creators, makes use of a pushrod structure, with the camshaft nestled into the cast-iron engine block, permitting for a extra compact bundle. That cast-iron block could appear brutish, however the Fury is packed filled with cutting-edge tech and supplies. Inconel exhaust valves deal with the searing exhaust temperatures with ease, and the pair of turbos, which push 23 PSI, are housed in 3D-printed titanium casings. All instructed, the Fury redlines at 8,200 rpm, and places out 1,817 horsepower.

For us common people who worth self-preservation to some extent, 1,817 horses looks like greater than sufficient. However, in an illustration of the F5’s buyer base mindset, Hennessey discovered itself with requests for much more energy, and thus the Evolution bundle was born. Hennessey known as on British firm Ilmor Engineering to squeeze each final drop of energy from the already obscene 6.6-liter V8. Upgrades included an infinite pair of bigger turbos, new oval-shaped pistons, higher-flow gas injectors, and extra. Once fed E85 gas, these upgrades assist the Fury produce a mind-bending 2,031 horsepower.