Forty-five engines, all runnable.

Diesel V16 60L

Sixteen cylinders and sixty litres. Its redline is lower than most engines' idle.

16 cyl · 60.4 L · diesel · turbo

Same bore, stroke, compression ratio and displacement as the Cummins QSK60

H-24 36.8L Supercharged

Two flat-twelves on two crankshafts, geared onto one propeller. Twelve double beats per cycle.

H-24 · 36.8 L · avgas · supercharged

Same bore, stroke, compression ratio and displacement as the Napier Sabre IIB

X-24 42.5L Aero

Four banks of six in a cross on one crank, two of them pointing down. It fires every 30°.

X-24 · 42.5 L · avgas · supercharged

Same bore, stroke, compression ratio and displacement as the Rolls-Royce Vulture

W16 8.0L Quad-Turbo

Sixteen cylinders in four rows over two heads, and a thousand horsepower asking for all of them.

16 cyl · 8.0 L · gasoline · turbo

Same bore, stroke, compression ratio and displacement as the Bugatti W16

F1 V10 3.0L

Three litres at nineteen thousand rpm. The last V10 to win a championship.

10 cyl · 3.0 L · gasoline

F1 V8 2.4L

Ninety-eight of bore, forty of stroke, and each bank firing every 180°. The highest-revving engine ever raced.

8 cyl · 2.4 L · gasoline

Same bore, stroke, displacement, compression ratio and vee angle as the Cosworth CA2006

V10 8.4L

Eight and a half litres of two-valve pushrod V10, and torque from idle.

10 cyl · 8.4 L · gasoline

Same bore, stroke, compression ratio and displacement as the Dodge Viper 8.4 V10

Turbo Diesel V8 6.7L

The same diesel with a turbo and an intercooler. Peak torque just over 2,000 rpm.

8 cyl · 6.6 L · diesel · turbo

Supercharged V8 6.2L

A belt-driven blower on the crank. Boost the instant you ask for it.

8 cyl · 6.2 L · gasoline · supercharged

Same bore, stroke and compression ratio as the Dodge Hellcat 6.2 HEMI

V8 7.0L Pushrod

Seven litres on two valves and one cam, spinning to 7,000. The biggest small block there was.

8 cyl · 7.0 L · gasoline

Same bore, stroke, compression ratio and displacement as the Chevrolet LS7 7.0 V8

W18 6.3L

Three banks of six on one crank, the broad-arrow Bugatti drew before the W16.

18 cyl · 6.3 L · gasoline

W12 6.0L

Two narrow-angle banks on one crank: twelve cylinders in the length of a V8.

12 cyl · 6.0 L · gasoline

Same bore, stroke, compression ratio and displacement as the Volkswagen W12

Inline-5 2.5L Turbo

Five cylinders, 144° apart. Half a V10's beat and none of a four's symmetry.

5 cyl · 2.5 L · gasoline · turbo

Same bore, stroke, compression ratio and displacement as the Audi 2.5 TFSI

V12 5.0L 60°

Twelve cylinders, perfect primary and secondary balance, and a noise nothing else makes.

12 cyl · 5.0 L · gasoline

Turbo I6 3.0L

Intercooled single turbo on 8.5:1. The classic boosted-six recipe.

6 cyl · 3.0 L · gasoline · turbo

Same bore, stroke and compression ratio as the Toyota 2JZ-GTE

V8 5.0L 90°

Five litres, cross-plane, no boost. The one to learn a V8 on.

8 cyl · 5.0 L · gasoline

V8 4.6L SOHC

Four point six litres, a cam over each bank, and the idle of every police car you have heard.

8 cyl · 4.6 L · gasoline

Same bore, stroke, compression ratio and displacement as the Ford Modular 4.6 2V

Two-Stroke Diesel I6 7.0L

The Screamin' Jimmy, a uniflow two-stroke diesel whose Roots blower the dragsters borrowed.

6 cyl · 7.0 L · diesel · supercharged

Same bore, stroke, displacement and compression ratio as the Detroit Diesel 6-71

Diesel V8 7.3L Power Stroke

Mid-nineties heavy-duty truck diesel. All of its torque lands before 2,000 rpm.

8 cyl · 7.3 L · diesel · turbo

Same bore, stroke, compression ratio and displacement as the Ford 7.3 Power Stroke

Diesel V8 6.7L HD

Naturally aspirated 6.7 diesel V8. All torque, no boost.

8 cyl · 6.6 L · diesel

Diesel I6 5.9L Turbo

Twelve valves, one mechanical pump, and every bit of its torque in by sixteen hundred rpm.

6 cyl · 5.9 L · diesel · turbo

Same bore, stroke, compression ratio and displacement as the Cummins 6BT 5.9

U-16 3.8L Blown

Two straight-eights side by side on their own crankshafts, geared together. Bugatti built two.

U-16 · 3.8 L · gasoline · supercharged

Same bore, stroke and displacement as the Bugatti Type 45

V6 3.0L 60°

Sixty-degree banks and a snarl all of its own.

6 cyl · 3.0 L · gasoline

Inline-6 3.0L

Naturally aspirated straight-six. The 2JZ-GE shape.

6 cyl · 3.0 L · gasoline

Boxer-6 3.0L

Opposed pistons, a low crank line, and the exhaust note Porsche built a religion on.

6 cyl · 3.0 L · gasoline

VR6 2.8L 15°

Fifteen degrees between banks, one cylinder head, and a growl all its own.

6 cyl · 2.8 L · gasoline

Same bore, vee angle and displacement as the Volkswagen VR6 2.8 (AAA)

Diesel I4 2.8L Turbo

Four cylinders, a mechanical pump and one small turbo. The diesel in every South American pickup of the 2000s.

4 cyl · 2.8 L · diesel · turbo

Same bore, stroke, compression ratio and displacement as the MWM Sprint 4.07 TCA 2.8

Inline-4 2.0L

The honest daily-driver four. Learn the basics on it.

4 cyl · 2.0 L · gasoline

Same bore, stroke and displacement as the Honda K20A

Boxer-4 2.0L

Flat, low and wide, with the burble that started a cult.

4 cyl · 2.0 L · gasoline

LPG I4 2.0L (Autogas)

Runs on autogas. 110 octane lets you push compression where petrol knocks.

4 cyl · 2.0 L · autogas

Diesel I4 2.0 TDI

Compression ignition. Glow plugs first on a cold morning.

4 cyl · 2.0 L · diesel

V-Twin 1340 45°

Both rods on one crankpin, 45° apart: it fires 405° then 315°, and that limp is the sound.

V-twin 45° · 1.3 L · gasoline

Same bore, stroke, compression ratio and displacement as the Harley-Davidson Evolution 1340

Two-Stroke 250 MX

A 249 cc single that fires every revolution. Keep it on the pipe or it will not pull.

1 cyl · 249 cc · gasoline

Same bore, stroke and displacement as the Yamaha YZ250

Two-Stroke I3 750

A 748 cc Saab-style screamer: three cylinders, six power pulses every two turns, in a haze of premix.

3 cyl · 748 cc · gasoline

Same bore, stroke, displacement and compression ratio as the Saab 93 two-stroke

Thumper 500

One long-stroke pushrod cylinder. The thump a dirt bike is named for.

1 cyl · 499 cc · gasoline

Same bore, stroke, compression and displacement as the Royal Enfield Bullet 500

Utility Single 163cc

The 163 cc overhead-valve single that runs generators, mowers and go-karts.

1 cyl · 163 cc · gasoline

Same bore, stroke and displacement as the Honda GX160

P&W R-2800 Double Wasp (18-cyl twin-row)

Eighteen cylinders, two rows, forty-six litres. The engine that flew the Corsair.

18 cyl · 46.0 L · avgas · supercharged

Vedeneyev M-14P (9-cyl radial)

Nine cylinders in a star, one master rod carrying eight. Still flying aerobatics.

9 cyl · 10.1 L · avgas · supercharged

Naturally Aspirated 4-Rotor 2.6L (26B)

Four rotors, Le Mans pedigree, and a redline that keeps climbing.

4 rotors · 2.6 L · 9,000 rpm

Same rotor count and chamber displacement as the Mazda R26B (787B)

Naturally Aspirated 3-Rotor 2.0L (20B)

Three rotors stacked for a howl no piston engine can fake.

3 rotors · 2.0 L · 8,000 rpm

Same rotor count and chamber displacement as the Mazda 20B-REW

Naturally Aspirated 2-Rotor 1.3L

Two inline rotors, six moving chambers, and no pistons at all.

2 rotors · 1.3 L · 8,500 rpm

Same rotor count and chamber displacement as the Mazda 13B-REW

Naturally Aspirated 1-Rotor 654cc

One rotor, three chambers, the smallest and revviest thing in the lineup.

1 rotor · 655 cc · 9,000 rpm

GE J85 (hydromech)

Hydromechanical fuel control. Slam the throttle and it WILL surge.

20.00 kg/s · OPR 7.0 · 16,500 rpm

GE J85 (FADEC retrofit)

Digital schedules ride under the surge line, so you can slam the throttle.

20.00 kg/s · OPR 7.0 · 16,500 rpm

JetCat P300 (micro)

Hobby microjet: 0.5 kg/s, 105,000 rpm, ECU-protected start.

0.50 kg/s · OPR 3.6 · 105,000 rpm