For restoring old car engines all over the World:
VAMEC Inc, Location: Norway
VAMEC AS – My WordPress site (alwaysinit.site)
Contact VAMEC: ARVE STORSVE, CEO, Phone number: +47 913 37 094, email: arve.storsve@vamec.no
Phone number +47 913 37 094
Or contact TROND BUAN
Phone number +47 901 56 033
Firing order of Different types of Cylinders engine
NB. For some Ford engines the ignition is anti-clockwise:
1. Firing Order For 3 cylinder engine
Firing order
1-2-3 Saab two-stroke engine
1-3-2 BMW K75 engine
2. Firing Order For 4 cylinder engine
Firing order
• 1-3-4-2 Most straight-4s, Ford Taunus V4 engine
• 1-2-4-3 Some English Ford engines, Ford Kent engine
• 1-3-2-4 Yamaha R1 crossplane
• 1-4-3-2 Volkswagen air-cooled engine
Why 1-3-4-2 firing order is preferred than the 1-2-3-4 in 4 cylinder engines?
The firing order must be considered on the basis of engine vibrations and engine cooling. Also the firing order affects the balancing of the engine.
Reasons for preferring 1-3-4-2 than the 1-2-3-4 in 4 cylinder engine:
1. The power impulses are evenly distributed and are 180 degrees apart. Therefore the firing order for the engine is 1-3-4-
2. This balance load on two bearings would be further reducing the engine vibrations.
3. It is required to cool the portion of the engine by changing the sequence. So that problem of overheating can be mitigated.
4. To provide sufficient travel time to exhaust gases. So that development of high back pressure would be avoided.
3. Firing Order For 5 cylinder engine
Firing order
• 1-2-4-5-3 Straight-5, Volvo 850, Audi 100
4. Firing Order For 6 cylinder engine
Firing order
• 1-5-3-6-2-4 Straight-6, Opel Omega A
• 1-6-5-4-3-2 GM 3800 engine
• 1-2-3-4-5-6 GM 60-Degree V6 engine
• 1-4-2-5-3-6 Mercedes-Benz M104 engine
• 1-4-5-2-3-6 Chevrolet Corvair
• 1-4-3-6-2-5 Mercedes-Benz M272 engine, Volkswagen V6’s
• 1-4-2-6-3-5 Toyota HZ engine
5. Firing Order For 7 cylinder engine
Firing order
• 1-3-5-7-2-4-6 7-cylinder single-row radial engine
6. Firing Order For 8 cylinder engine
Firing order
• 1-8-4-3-6-5-7-2 1988 Chrysler Fifth Avenue, Chevrolet Small-Block engine
• 1-8-7-2-6-5-4-3 GM LS engine, Toyota UZ engine
• 1-3-7-2-6-5-4-8 Porsche 928, Ford Modular engine, 5.0 HO
• 1-5-4-8-7-2-6-3 BMW S65
• 1-6-2-5-8-3-7-4 Straight-8
• 1-8-7-3-6-5-4-2 Nissan VK engine
• 1-5-4-2-6-3-7-8 Ford Windsor engine
• 1-5-6-3-4-2-7-8 Cadillac V8 engine 368, 425, 472, 500 only
• 1-5-3-7-4-8-2-6 Ferrari Dino V8 (F355)
• 1-2-7-8-4-5-6-3 Holden V8
7. Firing Order For 10 cylinder engine
• 1-10-9-4-3-6-5-8-7-2 Dodge Viper V10
• 1-6-5-10-2-7-3-8-4-9 BMW S85
8. Firing Order For 12 cylinder Engine
Firing order
• 1-7-5-11-3-9-6-12-2-8-4-10 Ferrari 456M GT V12
• 1-7-4-10-2-8-6-12-3-9-5-11 Lamborghini Diablo VT
• 1-4-9-8-5-2-11-10-3-6-7-12 Caterpillar Inc. 3412E
• 1-12-5-8-3-10-6-7-2-11-4-9 Audi VW Bentley W12 engine
• 1,12,7,6,3,10,11,2,5,8,9,4 Rolls-Royce Merlin
• 1,12,4,9,2,11,6,7,3,10,5,8 Lamborghini Aventador
9. 16-cylinder
Firing order
1-12-8-11-7-14-5-16-4-15-3-10-6-9-2-13 Cadillac V16 engine
10. 20-cylinder
Firing order
• 1-12-8-11-7-14-5-16-4-15-3-10-6-9-13-17-19-2-18-20 Cadillac V20 engine.
For fine tuning engines : MSD = Multiple Spark Discharge