Volvo Modular engine

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B5252S engine in a 1994 Volvo 850 SE.

The Volvo Modular engine is a family of straight-4, straight-5, and straight-6 automobile piston engine produced from the first year Volvo 960 appeared with the B6304F engine (1990). It has an aluminium engine block and aluminium 4-valve DOHC cylinder heads and uses SFI fuel injection and has fracture-split forged steel connecting rods. All are built in Skövde, Sweden.

Contents

[edit] Decoding Name

The first five characters are as follows:

  • 1st: (B/D) B = Petrol, D = Diesel
  • 2nd: (4/5/6) # of Cylinders
  • 3rd & 4th: Approximate displacement in deciliters, may be rounded up or down. (23 ~= 2.3L)
  • 5th: (2/4) Valves per cylinder

[edit] B4204T3

The B4204T3 is a 1.9 L (1948 cc) straight-4 built in Skövde, Sweden. Bore is 83 mm and stroke is 90 mm. Output is 165 hp (121 kW) at 5250 rpm with 177 ft·lbf (239 N m) of torque at 1800-4500 rpm. It is turbocharged and intercooled.

Applications:

[edit] 2.3

The B5234 is a 2.3 L (2319 cc) straight-5. Bore is 81 mm and stroke is 90 mm.

[edit] B5234T3

The B5234T3 features variable valve timing (in later engine revisions), a single turbocharger, and an intercooler. Output ranges from 236 hp (176 kW) at 5100 rpm and 243 ft·lbf (330 N m) of torque from 2700-5100 rpm in the pre-VVT engines to 247 hp (184 kW) at 5200 rpm with 243 ft·lbf (330 N m) of torque at 2400-5200 rpm with VVT.

Applications:

[edit] 2.4

The B5244 is a 2.4 L (2435 cc) straight-5. Bore is 83 mm and stroke is 90 mm.

[edit] B5244S

Naturally Aspirated. The B5244S produces 168 hp (125 kW) at 5900 rpm with 170 ft·lbf (231 N m) of torque at 4500 rpm.

Applications:

[edit] B5244T

The B5244T is turbocharged and intercooled. Output is 197 hp (147 kW) at 5700 rpm with 210 ft·lbf (285 N m) of torque at 1800 rpm.

Applications:

[edit] 2.5

The B525 is a 2.5 L (2521 cc) straight-5. Bore is 83 mm and stroke is 93.2 mm. It also has an assembled cast aluminium intake manifold.

[edit] B5254T2

The B5254T2 has VVT and is turbocharged and intercooled. Output is 208 hp (155 kW) at 5000 rpm with 236 ft·lbf (330 N m) of torque at 2400-5200 rpm.

Applications:

[edit] B524T2-R (B5254T4)

The B5254T2-R has VVT and is turbocharged and intercooled.

Output is 300 hp (220 kW) at 5500 rpm with 295 ft·lbf (400 N m) of torque at 1950-5250 rpm with the 6 speed M66AWD (Ford/Getrag) manual transmission.

Output is reduced to 300 hp (220 kW) at 6000 rpm with 258ft.lb (350 N m) of torque between 1850 and 6000 rpm with the 5 speed AW51AWD Aisin Warner automatic transmission (2004-2005).

The 6 speed TF-SC80 automatic transmission is not limited (2006-2007).

Applications:

[edit] B5254T3

The B5254T3 is based on the B5254T2. It has VVT and is turbocharged and intercooled. Unlike previous designs, the turbocharger is integral with the exhaust manifold. It uses the Bosch ME 9.0 engine management system. [1]

Using the M66W (FWD) or M66C (AWD) manual transmission output is 220 hp (162 kW) at 5000 rpm with 236 ft·lbf (320 N m) of torque at 1500-4800 rpm. [2] With the AW55-51 automatic transmission, torque is limited in first and second gear. [3]

Applications:

[edit] B5254T7

The B5254T7 is a slight adaptation of the B5254T3. It has VVT and is turbocharged and intercooled. The turbocharger is still integrated into the exhaust manifold, but is of a different design.

Using the M66W (FWD) or M66C (AWD) manual transmission output is 227 hp (169 kW) at 5000 rpm with 236 ft·lbf (320 N m) of torque at 1500-5000 rpm. With the AW55-51 automatic transmission, torque is limited in first and second gear.

Applications:


The Volvo B62 is a straight-6 automobile piston engine produced in the 2000s. It has an aluminium engine block and aluminium DOHC cylinder heads. It uses SFI fuel injection, has 4 valves per cylinder with and features fracture-split forged steel connecting rods.

[edit] 2.9

The B6294 is a 2.9 L (2922 cc) straight-6 built in Skövde, Sweden.

[edit] B6294S

The B6294S is a 2.9 L (2922 cc) straight-6 built in Skövde, Sweden. Bore is 83 mm and stroke is 90.3 mm. Output is 194 hp (145 kW) at 6000 rpm with 207 ft·lbf (281 N m) of torque at 4200 rpm. This engine is based on the B6304 (see below), but refined for transverse mounting and variable valve timing.

Applications:

[edit] B6294T

The B6294T is a 2.9 L (2922 cc) version built in Skövde, Sweden. Bore is 83 mm and stroke is 90.3 mm. Output is 268 hp (200 kW) at 5200 rpm with 280 ft·lbf (380 N m) of torque at 1800-5000 rpm. It has two turbochargers and is intercooled.

Applications:

[edit] B6304S

The B6304S was the first generation of modular inline-6 engines. It has the same bore and stroke (83x90 mm) as the B6294, but the deciliter number was rounded up (i.e. 2,922 cc to 3,000 cc). These engines produced 204 hp (152 kW) at 6000 rpm, and 197 ft·lbf (267 N·m) of torque at 4,300 rpm. Engine output was reduced to 180 hp (130 kW) and 199 ft·lbf (270 N·m) by changing the cam profile (back then without variable valve timing) in favor of emissions regulations.

To develop this new, modular engine type, Volvo had a cooperation project with Porsche / Weissach.

Applications:

  • 1990~1998 Volvo 960, S/V-90 (Longitudinally Mounted RWD)

[edit] B6254S

A new, small 2.5-litre engine, known as the B6254 FS, was introduced for the 1995 Volvo 960. It developed 170 bhp (130 kW) at 5,700 rpm and maximum torque of 230 Nm at 4,400 rpm. This engine was identical in every way to the larger B6304S, apart from the stroke being reduced to 80 mm and the bore to 81 mm, producing a displacement of 2,473 cc. Like other Volvo engines, it was optimised for low-end and middle range torque. [4]

Applications:

  • 1995~1998 Volvo 960 (Longitudinally Mounted RWD)

[edit] B6254G

Non-catalyst, leaded-fuel compatible version of the B6254S, for regions with limited availability of unleaded fuel.

[edit] See also

  1. ^ http://theeshadow.com/files/S40MY2005/S40MY2005-Engines.pdf
  2. ^ http://theeshadow.com/files/S40MY2005/S40MY2005-Engines.pdf
  3. ^ ?
  4. ^ "Press launch information pack - Volvo 960 1995". Volvo Car Corporation. June 1994. http://www.volvoclub.org.uk/press/pdf/presskits/960PressKitJuly1995.pdf. 
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