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Questions tagged [firing-order]

Use for questions related to cylinder firing order.

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6 votes
1 answer

Is there any benefit in performing a 4/7 swap on an LS engine?

Based on some resources, I was able generate a list of all theoretical firing orders for an LS engine with a cross-plane crankshaft. Here they are (L,R denote which bank each cylinder in the firing ...
1 vote
1 answer

1989 Chev. Cavalier Firing Order

If firing order 1423 equals firing order 1243,what cylinders do you connect the spark plug wire to from the coils? Will either work?
0 votes
0 answers

firing order adjustment for 1.6 hdi engine after rebuil?

I have a grand Picasso 1.6 HDI 9HZ engine recently i have rebuild the engine by replacing crankshaft and piston rings and but i want to know how can i adjust firing ...
14 votes
2 answers

What made Ferrari choose this particular firing order for their flat-plane V8's?

In other words, what factors influence an engine designer's decision to go with a certain firing order? I had some free time today to investigate what firing orders are possible on a flat-plane 90° ...
4 votes
2 answers

Why is there no 1-4-2-3 Firing order?

Firing order for an engine is picked in the most efficent way to reduce vibrations and improve the engine balance. Most straight 4 cylinder engines use the 1-3-4-2 configuration. So why, according to ...
6 votes
2 answers

Can a modified or non-fixed firing order yield a racing advantage?

I'm looking forward to more sports car racing this year (alas, just as a participant) and so I thought I'd look over the rules in detail. Specifically, I was reading the 2016 IMSA Technical ...
15 votes
3 answers

Why do Internal Combustion Engines have specific "Firing Orders"?

What's the point of having a firing order? I read that it helps balance out the power so as not to be too much on one side if the crankshaft, but why do we have such a specific order? If that was the ...
10 votes
1 answer

Is firing order sufficient to tell if a crankshaft is cross-plane or flat-plane?

If I know the order in which the cylinders on a V-engine fire, can I know for sure whether the engine has a cross-plane or flat-plane crankshaft?