Proton KR confirms 'big bang' engine.

Proton Team KR heads to Mugello for this weekend's Italian Grand Prix eager to develop their new 'growler' engine further.

The new powerplant has been confirmed as having a 'big-bang' format, which provides a completely different exhaust note from the first-generation howler. With five separate pipes, the new motor is also louder, with an authoritative deep bass sound.

"We're still not fully up to potential with developing the latest engine, but we will be much better prepared than at Le Mans," said team principal Kenny Roberts.

Proton KR V5, French MotoGP 2004
Proton KR V5, French MotoGP 2004
© Gold and Goose

Proton Team KR heads to Mugello for this weekend's Italian Grand Prix eager to develop their new 'growler' engine further.

The new powerplant has been confirmed as having a 'big-bang' format, which provides a completely different exhaust note from the first-generation howler. With five separate pipes, the new motor is also louder, with an authoritative deep bass sound.

"We're still not fully up to potential with developing the latest engine, but we will be much better prepared than at Le Mans," said team principal Kenny Roberts.

"We tried a new firing order there, and some other changes, and found out which of them are the right direction. Now we will have more of the good things for these next races," added the American.

The different firing order - similar in concept to that used by the Yamaha YZR-M1 - offers stronger mid-range performance and better throttle response, as well as significantly reduced engine braking.

"The whole bike is more easy to ride, and easy to control when it slides," explained Nobuatsu Aoki.

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