P60B40

BMW P60B40 Engine

Manufacturer	BMW M GmbH
Production	2001–2005
Class	V-8
Engine	4.0L  (3,997 cc/244 in³) 368 kW (493 hp) 480 N·m (354 lb·ft) bore x stroke: 94 x 72 mm

The P60B40 is the V8 Powerplant of the E46 BMW GTR. The race engine config in the ALMS GTR produced 444-470HP.

Usage

Auto racing history is replete with examples of clever engineers and racers taking advantage of badly worded rules. The latest example is the car you see here, the BMW E46 M3 GTR, which mopped up the GT2 class in last year's American Le Mans Series. Regulations for the 2001 Le Mans 24-hour race (and the American Le Mans Series) stated that a car had to be for sale on two continents within twelve months of the rules being issued. Hence, when BMW needed more thrust for its ALMS M3 racer to compete with Porsche, it interpreted the rules to the letter. Out went the M3's six-cylinder engine, to be replaced with a V-8 racing engine that had the muscle to beat the Porsches.

An evolution of this engine powers the new E92 GTR. The E92 P65 has a 92mm bore and 75mm stroke.

External links

• Image - Engine Display - P60B40 on display at the BMW Museum
• 7ExtremeMotorsports - 7ExtremeMotorsports GTR discussion
• Article Ultimatecarpage - P65 powered E92 GTR