Honda B20B engine specifications
| Manufacturing | Honda Motor Company |
| Engine make | B20B |
| Years of manufacture | 1995-2002 |
| Cylinder Block Material | aluminum |
| Power system | injector |
| Type | row |
| Number of cylinders | 4 |
| Valves per cylinder | 4 |
| Piston stroke, mm | 89 |
| Cylinder diameter, mm | 84 |
| Compression ratio | 8.8-9.6 |
| Engine displacement, cc | 1972 |
| Engine power, hp/rpm | 126-150/5400-6300 |
| Torque, Nm/rpm | 180-184/4800-4500 |
| Fuel | 92/95 |
| Environmental standards | up to Euro 2 |
| Engine weight, kg | ~145 |
| Fuel consumption, l/100 km – city – highway – mixed. |
11.9 8.4 10.0 |
| Oil consumption, gr./1000 km | up to 1000 |
| Engine oil | 5W-30 5W-40 10W-30 10W-40 |
| How much oil is in the engine | 3.8 |
| When replacing pour, l | 3.5 |
| Oil change is carried out, km | 10000 (better 5000) |
| The operating temperature of the engine, deg. | 90 |
| Engine life, thousand kilometers – according to the factory data – in practice |
– 300+ |
| Tuning – potential – without loss of resource |
400+ n.d. |
| Motor installed | Honda C-RV Honda Orthia Honda S-MX Honda StepWGN |
Troubleshooting and repair of Honda CRV B20B engine
B20B engine is a popular and the most voluminous representative of the Honda B series (B16, B17, B18), which is based on an aluminum cylinder block with steel liners. The height of the B20 cylinder block is 212 mm, the crankshaft has a piston stroke of 89 mm, the length of connecting rods is 137 mm, and the height of pistons is 30 mm.
The motor head is two-shaft 16-valve, the drive timing belt, belt replacement should be carried out every 100.000 km, in the case of a break in the timing belt, the motor valves more often does not bend than bends. The engine is not equipped with hydrocompensators, adjustment of valve clearances on B20B is carried out once every 40.000 km. The motor is extremely simple, there is no VTEC timing system, but by simple manipulations this issue is solved, about it will be a little later.
Motors B20B had some variations, the very first went in 128-horsepower version, after 1998, the power increased to 147 hp, Japanese helpers – 145 hp, since 98th year – 150 hp.
Motors of series B, by right, are considered one of the most reliable and unpretentious engines Honda, there are no any obvious weak points of the motor: the oil seals of camshafts do not live long, on serious runs can break through the cylinder-head gasket, periodically dies the pump or thermostat, after what we get overheating.
In general, the engine is very good, with proper maintenance goes for a long time, the resource b20b about 300 thousand kilometers and more. If the motor came and requires overhaul, it is easier and cheaper to buy a contract engine B20B, the price does not bite.
The engine B20B was produced until 2001, then was replaced by a more modern K20A.
Tuning the Honda B20B (Z) engine
Atmospheric. B20B VTEC
The most common, rational and, indeed, driving type of tuning B20B, is the installation of VTEC cylinder head from B16. Such conversions will allow you to noticeably increase the efficiency of the engine and its power, without serious damage to the resource, reliability and so on. For this purpose you need a head from B16 or B18 in an assembly, ARP studs, Hondata for tuning and various little things, at the output we will get more than 200 hp. To squeeze the motor to the end, we change the pistons to WISECO (or others) under compression ratio 12 (or more), do porting head, camshafts Skunk2 Stage 2, light valves, cold intake with a large damper, receiver Skunk2 (or other), injectors performance 300-360 cc, gasoline pump Walbro 255 lph, exhaust 4-2-1 on 63 pipe. As a result we will get about 240 atmospheric forces, on standard shafts less, on even more evil more, but too much to twist too is not worth it.
B20B turbo
For even more hellish valilov, you can turbocharge the above configuration, having previously replaced the pistons on others, under low degree (about 8.5), connecting rods Carrillo, shafts simpler (standard or stage 1), injectors 550 ss (and more), on ebay choose the favorite turbo kit with intercooler and all related, put, adjust and inflate for 300 hp. hp. This should definitely be enough, but you need to remember, increasing power, it is worth taking care of the rest of the car, so the financial cost of building a powerful korchy will not be childish.
ENGINE RATING: 4+