Following the most extensive rule changes in the sport’s history, the Formula 1 seasonal opener in Australia this weekend will likely showcase an ongoing conflict between traditional race fans and technology buffs. Highlighting that confrontation will be some strange new noises coming from the track (see video above).

An entirely new type of powertrain will debut with more emphasis on energy recovery and improving fuel economy. In fact, teams will be limited to only 140 liters of fuel per race, and the flow rate is limited to 100 kilograms per hour. That compares to previous restrictions of 225 liters and 170 kg/hr.

More important to the fans, however, will be the move from a naturally aspirated 2.4-liter V8 engine to a turbocharged 1.6-liter V6 engine. The familiar high-pitched screaming roar of 18,000 rpm will be reduced to a low-pitched gurgle, now limited to 15,000 rpm. Even the exhaust pipes have been regulated. The blown diffusers that helped aerodynamics and also added a little “bark” during braking have been banned.

New Formula 1 powerplants will include a turbocharged 1.6-liter V6 engine mated with two Motor Generator Units, including one on the turbocharger to help spool it up when needed.

Traditional horsepower is no longer the key to performance. The gas engines will produce about 600 horsepower but the power from the two hybrid electric motors called Motor Generator Units (MGU) will add up to 160 horsepower for a total of 33 seconds a lap.

Some technology will be noteworthy to engine buffs. Direct injection makes its debut in Formula 1, and the turbos will be limited to 50 pounds of boost. One of the MGUs will be mounted to the turbo to recover heat energy and turn it into electrical energy. This MGU can also be used to “spool” up the turbo in addition to providing power to the rear wheels.

Other noteworthy changes include a move from 7- to 8-speed transmissions, teams must race the entire season on only five engines, down from eight last year.

The sound of the new engines will likely dominate much of the conversation. Comparison videos (below) are drawing numerous comments. Take a look and listen and leave your comments.

For more information on the new engines, check out EL’s stories on the Renault and Ferrari engines.