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Questions tagged [firing-order]

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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 ...
Mojtaba Moshtofar's user avatar
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?
MarsBandit's user avatar
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 ...
method's user avatar
  • 2,770
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 ...
user15938's user avatar
  • 571
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 ...
Edward's user avatar
  • 2,857
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 ...
Zaid's user avatar
  • 39.2k
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° ...
Zaid's user avatar
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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?
Zaid's user avatar
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