B20 Firing Order [With Diagram] 

After the LS and VTEC swaps were famous, several enthusiasts stretched the edge by employing the B20 also as the bottom half in their “Frankenstein” exchanges. At the time, the engine wasn’t popular, but this changed after the swaps got popular. Many auto enthusiasts were successful in extracting lots of acceleration and high-end hp from their Hondas by merging the bottom half of the 2.0L with the top of such a Vtec firing order B-Series model.

Both the B20A3 as well as the B20A5 made their debut in the S and Si variants of the 1990–1991 Honda Prelude, which had 104 and 135 horsepower, respectively. The engine, which can be found in the CR-V versions sold in the United States from 1997 forward, generates 126 horsepower and 133 foot-pounds of torque. The engine firing order is 1-3-4-2

The B20B was also available in Japan between the years 1995 and 1998, however, it was pretty comparable to the B20B that was sold in the United States. However, between 1999–2001, the JDM B20B used pistons with a greater compression ratio and was classified at 146 horsepower. The B20Z was the name given to the version of the Japanese Domestic Market (JDM) B20B that was sold in the United States during the years 1999–2001.

B20 Firing Order

  • Firing Order: 1-3-4-2

Explanation of B20 Firing Order

To ensure that the engine operates without any problems and that there is a successful transfer of power from the motor to the rotor, this process has to be performed to the fullest. To get the combustion process going, the spark plug for the first cylinder is the one that gets ignited initially. The next component in the arrangement is the third cylinder.

The starting motor of cylinder number four will then be the one to ignite, and ultimately, cylinder number two will become operational after that. If you rotate the distributor cap in a clockwise direction, you will see this pattern on it. This pattern corresponds to the b20 dizzy firing order, which is 1-3-4-2.

You need to make sure that you mark or make a note of the position of cylinder number one since it will act as a starting point for you to discover the following cylinders in the chain. Cylinder number one may be found at the beginning of the chain. The remainder of the B20 Non-Vtec firing order, often known as the firing sequence 1-3-4-2, will be determined based on the starting point. If you find it incorrectly, the whole procedure will be disrupted, and the engine won’t be able to start.

Firing Order Applies to:

  • B20B
  • B20B4
  • B20Z2
  • B20A

Torque Specifications

Fastener TypeTorque Spec
7/16 in. Outer Main Cap Bolt70 ft.-lbs.
7/16 in. Inner Main Cap Bolt75 ft.-lbs.
3/8 in. Outer Main Cap Bolt35 ft.-lbs.
11/32 in. Connecting Rod Bolt38-44 ft.-lbs.
3/8 in. Connecting Rod Bolt40-45 ft,-lbs.

Firing Order For Similar Vehicles:

  • 2020 Honda Civic 1-3-4-2
  • 2020 Audi A4 1-3-4-2
  • 2020 Kia Stinger  1-3-4-2
  • 2020 Toyota Camry  1-3-4-2
  • 2020 Mazda3  1-3-4-2

Which B-Series engine is best?

The B18 series produces the B-Series engine that is without a doubt the most famous and the one that is searched after the most B20 crankshaft specs. With a capacity of 1.8 liters and  VTEC technologies, the B18C powertrain takes the best of what the B-Series would have to offer and incorporates it into its design.

Why is the B-Series engine so good?

The B engines are distinguished from other manufacturing engines by their use of VTEC.

It’s brief for Hydraulic Valves Timing with Digital Control, and B20 color code and it’s Honda’s method that integrates the benefits of a stock cam, such as a streamlined idle, satisfactory low-end power, excellent fuel economy, as well as reduced carbon, with the upper-end chargers and large capacity of a practically full cam.

This is kind of like getting the best of both worlds.

What car comes with a B20 engine?

In the initial version of the Honda CR-V,  Honda relaunched both the B20B and the B20Z. Both B20B and B20Z engines of this generation B20 rules were supposed to be more comparable to the B16 as well as B18 families, in addition to the B20 VTEC engine that enthusiasts developed.

Jake Mayock