In Brief:- Engines and their horsepower. The ratio of cc to hp varies by the cu.in. or cu.cm., rpm, tune and
if blown, turbocharged or supercharged but is about 1 cu.in per hp for a modern vehicle engine
Convert cc to bhp
  how many cc in a hp  
engine cc to horsepower
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Many people have asked for a relationship between horsepower and cc or how many cc in a hp.

The short answer is about 15 to 17cc = 1 hp or about 1 cu.in. = 1 bhp for a modern car.

The full answer is complex - the power output of an engine depends on the state of tune as well as size, and the definition of horsepower must be considered, brake horsepower ( bhp ) or shaft horsepower ( shp ), and is not covered here.
Horsepower can be increased by engine tuning, more volatile fuel, supercharging or exhaust turbo boosting.

The intention of this page is to give a general answer based on a list of data from a broad range of engines.
The original, pre-sorted data list can be found here.

As can be seen from the table below, the top 10 highly tuned engines cover a wide variety from Formula 1 racing cars and dragsters, through TT and motocross bikes to a tiny 3.5cc model car engine producing 3.45hp at a screaming 42,600 rpm and weighing in at 340 grams.
Compare that mighty midget to the 2,300 ton ships engine producing 108,920 hp at 102 rpm from 25,498,000 cc at the other end of the scale. Size isn't everything!

Note:-
1 cubic inch ( cu.in. ) = 16.387064 cubic centimetres ( cu.cm. cm3 or cc )
1000 cc = 1 litre
1 hp (UK) = 0.7457 kilowatt ( kW )
rpm = revolutions per minute

Engines sorted with the highest tuned first, ie. with the lowest cu.cm to horsepower ratio

engine cc hp rpm
cc / hp
         
Model car 2 stroke diesel - Rossi 236R21 3.5 3.45 42,600
1.0145
Top fuel dragster V8 supercharged 8194 8000+  8 200
1.0243
F1 racing car 1987 turbo - qualifying 1494 1400+ 14 000
1.0671
F1 racing car 1987 turbo - race trim - Honda 1494 1000 13 000
1.4940
Honda TT race bike 125 47  
2.6596
Model aircraft - Chinese contest diesel 3.5 1.3 26 000
2.6923
Model aircraft - Typhoon Russian diesel 2.47 0.82 27 200
3.0122
BMW F1 racing car 2003 - P83 2998 920 19 200
3.2587
Motocross bike 125 33  
3.7879
Honda - stock road bike 125 33  
3.7879
F1 racing car 1995 - no turbo 3000 750  
4.0000
Model aircraft OS glowplug 5.23 1.2 22 000
4.3583
Junior motorbike - reed valve 125 28 14 000
4.4643
Model aircraft OS glowplug 8.17 1.8 17 000
4.5389
Model aircraft OS glowplug 9.95 1.9 16 000
5.2368
Superbike 600cc Class 599 112  
5.3482
Superbike 1000cc Ducati FO3 999 186 13 000
5.3710
Kawasaki ZX-10R - road trim 998  182  11 700 
5.4835
Junior - road bike 125 20  
6.2500
Model aircraft OS glowplug 1.76 0.27 17 000
6.5185
Lotus 2-Eleven - supercharged 1798 252  8 000
7.1349
Ford Escort 2.0L COSWORTH 2000 225  
8.8889
Junior - de-tuned 125 13.5  
9.2593
Fuji ATM 50 5.2 10 000
9.6154
Scooter 60 5.8 8 500
10.3448
Street bike 50 4.2 7 000
11.9048
Ford Escort 1.6L RS TURBO 1600 130  
12.3077
Tractor pulling Allison V12 28000 2200  
12.7273
Honda Accord 1800 136  
13.2353
Ford Escort 2.0L 16V RS 2000 150  
13.3333
Ford Mondeo 2000 150  
13.3333
Ford Escort 2.0L RS 2000 149  
13.4228
Honda Accord 2000 147  
13.6054
Ford Escort 1.8L 16V XR3 1800 130  
13.8462
Honda Accord 1600 115  
13.9130
Fuji ATM 32 2.2 10000
14.5455
Mitsubishi Carisma Classic 1600 110  
14.5455
RR Griffon 58 - Shackleton aircraft 37000 2455  
15.0713
Ford Escort 1.6L 16V 1600 105  
15.2381
Ford pickup/utility 2000 130  
15.3846
Ford saloon 2000 130  
15.3846
Ford Thunderbird 3900 252  
15.4762
Mitsubishi Carisma Classic 1400 90  
15.5556
Ford Escort 1.8L 16V 1800 115  
15.6522
Mitsubishi Carisma Classic 1300 82  
15.8537
P&W Wasp Major - race tuned 71500 4500  
15.8889
Rolls Royce Merlin / Packard V-1650 27000 1695  
15.9292
Marine outboard 815 50  
16.3000
Chainsaw 36 2.2  
16.3636
Ford Fiesta 1.25L 16 valve 1250 75  
16.6667
Honda Jazz 1399 83  
16.8554
Ford Escort 1.8L 8V 1800 105  
17.1429
Marine outboard 105 6  
17.5000
Ford Escort 1.6L 8V 1600 90  
17.7778
Chainsaw 25.6 1.4  
18.2857
Marine outboard 1298 70  
18.5429
Ford Escort 1.4L 8 valve 1400 74  
18.9189
MGB 1798 95 5400
18.9263
Ford pickup/utility 4000 210  
19.0476
Jaguar 3.4 3442 180 5300
19.1222
Ford saloon 3000 155  
19.3548
Austin Healey 3000 Mk3 1963 2912 150  
19.4133
Ford Mustang 3800 193  
19.6891
Ford pickup/utility 4000 203  
19.7044
Ford pickup/utility 4600 232  
19.8276
Marine outboard 597 30  
19.9000
Allison V12 in P38 aircraft 28000 1400 4000
20.0000
Marine outboard 302 15  
20.1333
Marine outboard 815 40  
20.3750
Chainsaw 40.8 2  
20.4000
Pratt & Whitney Wasp Major, radial 28cyl 71500 3500 2800
20.4286
Chainsaw 32.8 1.6  
20.5000
Ford pickup/utility 5400 260  
20.7692
Ford pickup/utility 4200 202  
20.7921
Ford pickup/utility 5400 255  
21.1765
Marine outboard 1298 60  
21.6333
Ford pickup/utility 4200 191  
21.9895
Ford Fiesta 1.1L 8 valve 1100 50  
22.0000
Marine outboard 597 25  
23.8800
Austin A35 and Morris Minor 948 37 4800
25.6216
Rolls Royce Merlin Mk.II 27000 1030  
26.2136
Ford pickup/utility 4600 175  
26.2857
Briggs & Stratton Industrial engine 465 15.5  
30.0000
Briggs & Stratton Industrial engine 480 16  
30.0000
Marine outboard 302 9.9  
30.5051
Briggs & Stratton Industrial engine 319 8  
39.8750
Briggs & Stratton Industrial engine 148 3.5  
42.2857
Ships turbo two stroke diesel, 14 cyl 25498000 108,920  102  234.0
Related pages
" Home page
" Info on SI Units
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" M Threads & spanners
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last modified: 25th. July 2013


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