The Honda D15B6 engine is a 1,493 cc SOHC 8-valve engine that was manufactured for use in Honda vehicles from 1988 to 1991. It was primarily found in the Honda CRX HF model and is known for its efficiency and reliability.
Understanding the specifications and performance of an engine is crucial for car enthusiasts, mechanics, and vehicle owners alike.
It helps in evaluating the capabilities of a vehicle and making informed decisions regarding maintenance and upgrades. In this post, we will take a closer look at the Honda D15B6 engine, its specifications, and performance.
Honda D15B6 Engine Overview
The Honda D15B6 engine is a 1,493 cc (91.1 cu in) engine that was used in Honda vehicles from 1988 to 1991. It is a SOHC (Single Overhead Camshaft) 8-valve engine that was designed to provide a balance of power and efficiency.
With a compression ratio of 9.1:1, the engine was capable of producing 62 bhp (46.2 kW, 62.9 PS) at 4400 rpm in 1988-1989 models, and 72 bhp (53.7 kW, 73.0 PS) at 4500 rpm in 1990-1991 models. The engine had a maximum torque output of 83 lb·ft (11.5 kg/m, 113 Nm) at 2200 rpm.
The Honda D15B6 engine features a 75 mm x 84.5 mm (2.95 in x 3.33 in) bore and stroke, which gives it its distinctive engine character.
It was equipped with an OBD-0 MPFI (Multi-Point Fuel Injection) system for improved fuel efficiency and emissions control. The head code for this engine is PM-8, and it features a heat sensor with a specific color wiring.
In terms of performance, the Honda D15B6 engine was well-regarded for its reliability and efficiency. Despite being one of the smaller engines in its class, it was able to provide decent power and torque, making it an ideal choice for small and lightweight vehicles like the Honda CRX.
In conclusion, the Honda D15B6 engine was a solid choice for Honda vehicles of its era, offering a good balance of power and efficiency. Its small size, reliability, and efficient fuel consumption made it a popular choice among vehicle owners and enthusiasts.
If you’re looking to upgrade or maintain a vehicle that was fitted with this engine, it is important to understand its specifications and performance capabilities.
Specification Table for D15B6 Engine
| Specification | D15B6 |
|---|---|
| Displacement | 1,493 cc (91.1 cu in) |
| Bore and Stroke | 75 mm x 84.5 mm (2.95 in x 3.33 in) |
| Compression Ratio | 9.1:1 |
| Valvetrain | SOHC, 8 valves |
| Fuel Control | OBD-0 MPFI |
| Head Code | PM-8 |
| Color Wiring for Heat Sensor | [Specific color] |
| Power (1988-1989 models) | 62 bhp (46.2 kW, 62.9 PS) at 4400 rpm |
| Power (1990-1991 models) | 72 bhp (53.7 kW, 73.0 PS) at 4500 rpm |
| Torque | 83 lb·ft (11.5 kg/m, 113 Nm) at 2200 rpm |
Source: Wikipedia
Comparison With Other D15 Family Engine Like D15B2 and D15B3
| Specification | D15B6 | D15B2 | D15B3 |
|---|---|---|---|
| Displacement | 1,493 cc (91.1 cu in) | 1,493 cc (91.1 cu in) | 1,493 cc (91.1 cu in) |
| Bore and Stroke | 75 mm x 84.5 mm (2.95 in x 3.33 in) | 75 mm x 84.5 mm (2.95 in x 3.33 in) | 75 mm x 84.5 mm (2.95 in x 3.33 in) |
| Compression Ratio | 9.1:1 | 8.8:1 | 9.0:1 |
| Valvetrain | SOHC, 8 valves | SOHC, 8 valves | SOHC, 8 valves |
| Fuel Control | OBD-0 MPFI | PGM-FI (Programmed Fuel Injection) | PGM-FI (Programmed Fuel Injection) |
| Head Code | PM-8 | PM-3 | PM-3 |
| Power | 72 bhp (53.7 kW, 73.0 PS) at 4500 rpm | 92 bhp (68.5 kW, 93.0 PS) at 6000 rpm | 102 bhp (76.0 kW, 104.0 PS) at 6000 rpm |
| Torque | 83 lb·ft (11.5 kg/m, 113 Nm) at 2200 rpm | 86 lb·ft (11.9 kg/m, 117 Nm) at 4500 rpm | 97 lb·ft (13.2 kg/m, 132 Nm) at 4500 rpm |
The Honda D15B6 engine is part of the D15 engine family, which includes the D15B2 and D15B3 engines. The main difference between these engines is the power output and fuel injection system.
The D15B6 has a slightly lower compression ratio compared to the D15B3 and a less advanced fuel injection system compared to the D15B2 and D15B3.
The D15B2 and D15B3 engines have a higher power output, producing 92 bhp and 102 bhp respectively, compared to the 72 bhp of the D15B6.
Additionally, the D15B2 and D15B3 have a more advanced PGM-FI fuel injection system compared to the OBD-0 MPFI system of the D15B6.
In conclusion, the D15B6 is the lowest performer in the D15 engine family, but it is still a solid and reliable engine. If you are looking for more power, the D15B2 and D15B3 are better options, but they also have a slightly higher price point and may be more complex to maintain and repair.
Head and Valvetrain Specs D15B6 Table
| Specification | D15B6 |
|---|---|
| Valvetrain | SOHC (Single Overhead Camshaft), 8 valves |
| Valve Configuration | 4 valves per cylinder |
| Valve Size | [N/A] |
| Camshaft Drive | [N/A] |
| Valve Lift | [N/A] |
| Rocker Arms | [N/A] |
| Camshaft Type | SOHC |
| Cylinder Head Material | [N/A] |
| Head Code | PM-8 |
The Technologies Used in
The Honda D15B6 engine uses the following technologies
1. Obd-0 Mpfi (on-board Diagnostics 0 Multi-point Fuel Injection)
This is an early form of electronic fuel injection used in the Honda D15B6 engine. It uses multiple fuel injectors to supply fuel to the engine, providing better fuel efficiency and improved performance compared to carbureted engines.
2. Sohc (Single Overhead Camshaft)
The D15B6 engine uses a single overhead camshaft to operate the engine’s valves. This design allows for a compact and lightweight valvetrain, which helps to improve engine performance and efficiency.
3. 8-valve Configuration
The D15B6 engine uses an 8-valve configuration, with 4 valves per cylinder. This provides for improved airflow into the engine, resulting in increased power and efficiency.
4. Mpfi (Multi-point Fuel Injection)
This fuel injection system uses multiple injectors to supply fuel to the engine. It provides improved fuel efficiency and performance compared to carbureted engines.
Overall, these technologies help to improve the performance, efficiency, and reliability of the Honda D15B6 engine.
Performance Review
The Honda D15B6 engine was produced from 1988 to 1991 and was commonly found in the Honda CRX HF model. It has a displacement of 1,493 cc and a bore and stroke of 75 mm x 84.5 mm.
The engine has a compression ratio of 9.1:1 and produced 62 bhp (46.2 kW) at 4400 rpm in the 1988-1989 models and 72 bhp (53.7 kW) at 4500 rpm in the 1990-1991 models. It has a torque output of 83 lb-ft (113 Nm) at 2200 rpm.
The Honda D15B6 engine is a reliable and efficient engine that offers good performance for its compact size. The use of OBD-0 MPFI and a SOHC 8-valve configuration helps to improve engine performance and efficiency.
Additionally, the compact design of the engine allows for a more aerodynamic and lightweight vehicle, which further improves performance.
In terms of fuel efficiency, the Honda D15B6 engine offers good gas mileage for its size and performance capabilities. The use of MPFI helps to optimize fuel delivery and improve engine efficiency.
Overall, the Honda D15B6 engine is a solid choice for those looking for a reliable and efficient engine for their Honda CRX HF. The engine’s compact size, good performance, and efficient fuel consumption make it a popular choice among Honda enthusiasts.
What Car Did the D15B6 Come in?
The Honda D15B6 engine was commonly found in the 1988-1991 Honda CRX HF model. The Honda CRX HF was a compact and sporty hatchback that was known for its fuel efficiency, handling, and overall performance.
The Honda D15B6 engine was a good match for the Honda CRX HF, providing good power and efficiency for its compact size. This engine is still a popular choice for Honda enthusiasts and is often used as a replacement engine for older Honda CRX models.
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