The R8's new 5.2-liter V-10 descends from the collaborative design effort between Audi and Lamborghini, which yielded a 493-hp, 5.0-liter V-10 for the 2004 Gallardo. The 90-degree V-angle, selected to facilitate the sharing of block machining tools with Audi V-8 engines, results in uneven firing intervals. Boosting the displacement to 5.2 liters, installing direct fuel injection, and raising the compression ratio to 12.5:1 in the R8 yields 391 lb-ft of torque at 6500 rpm and 525 hp at 8000 rpm. A similar 5.2-liter V-10 in the Lamborghini Gallardo LP560-4 boasts slightly higher peak power and torque ratings.
- Don Sherman, Technical Editor Automobilemag.com
Read more: http://www.automobilemag.com/reviews/driven/0902_2010_audi_r8_v10/viewall.html#ixzz1lQp92Xvn
Engine Specifications
Arrangement Mid mounted, longitudinalBore 3.33 in. [84.5 mm]
Stroke 3.65 in. [92.8 mm]
Displacement 5.2 liter [317.6 cu. in., 5204 cc]
Type 5.2 liter DOHC V10, four valves per cylinder, with FSI® direct injection, dry sump lubrication system, aluminum cylinder block and crank case
Fuel Requirement Premium unleaded
Compression Ratio 12.5:1
Horsepower 525 hp @ 8000 rpm
Torque 391 lb-ft. @ 6500 RPM
Performance
0-60 MPH 3.7 sec.
Top Speed 196 mph
Fuel Economy
Manual R tronic®
City 12 MPG 13 MPG
Highway 19 MPG 19 MPG
Combined 14 MPG 15 MPG
Capacities
Engine Oil 8.8 qt. [8.3 liter]
Fuel Tank 23.8 gal. [90 liter]
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