Text: Marcus De Guzman / Photos: Audi, Lamborghini | posted May 26, 2015 12:42
Volkswagen AG mulls the possibility of a 5-cylinder TFSI engine for the Huracan, R8
Asia-bound Lamborghini Huracans and Audi R8s may get power from a smaller five-cylinder TFSI inline-five engine according to Car & Driver.
The idea of having a small yet potent powertrain has become a possibility for the company as heavier tax laws in Asia (specifically in China) is bearing down on big-engined automobiles. Key persons within Volkswagen Group like Audi technical boss Ulrich Hackenberg and Lamborghini president Stephan Winkelmann acknowledged the problem and thought about utilizing a smaller engine to cut down on tax laws.
The likelihood of both supercars to get a smaller engine increased further as Audi recently unveiled the TT Clubsport Turbo concept which uses a 2.5-liter TFSI inline-five that benefits from an electric turbocharger. It generates 600 PS and 650 Nm of torque which is surprising considering the 5.2-liter naturally aspirated V10 found on the Huracan and on the R8 Plus is rated at 610 PS and 560 Nm.
However, the application of electric turbochargers can also mean added weight to the supercar which defeats the purpose of having a lightweight and powerful platform to work on according to Quattro GmbH head Heinz Peter Hollerweger.
“Electric boosting would be necessary for any smaller motor, even if it’s turbocharged. That would dictate 48-volt electrical systems and a lithium-ion battery pack to generate enough energy to help the internal-combustion engine. But using electrification to give a leg up to smaller internal-combustion engines comes at a price—both in cost and in weight, which is the traditional enemy of supercars,” said Hollerweger.
Source: Car & Driver