Japanese tuners Trick Star turbocharges the Kawasaki Ninja ZX-25R with 100HP, and it’s capable of hitting 249KM/H!


  • Fail paten telah menunjukkan yang Yamaha sedang berusaha menghasilkan sebuah enjin ‘twin’ cas turbo.
  • Yamaha ingin mengurangkan emisi ekzos dengan menggunakan pengecas turbo.
  • Pengecas turbo menambah keberkesanan lohong masukan dengan menyedut lebih banyak udara ke dalamnya.


  • Patent filings show that Yamaha is working on producing a turbocharged twin.

  • Yamaha seeks to lower exhaust emissions by utilizing a turbo.

  • A turbo increases intake efficiency by forcing in more air.

Patent filings show that Yamaha is working on producing a turbocharged twin.

However, Yamaha’s turbocharging idea is to beat the Euro 5 emissions standard. To that end, the manufacturer seeks to use a smaller engine to reduce fuel consumption, while the turbo ups the power. Forced induction increases intake efficiency i.e. forces in more air.

The patent also shows that Yamaha is concentrating their effort in the turbo’s wastegate. The wastegate is a device which vents access pressure in the turbo’s compressor. In the patent, Yamaha aims to optimize the wastegate’s actuator to increase the “degree of freedom in the layout of the catalyst.” In layman terms, it means they can fit a bigger catalytic converter.

Turbocharging is not a new to the world of motorcycling. All Big Four manufacturers flirted with forced induction in the 80s. However, they were interested in coaxing more horsepower from smaller engines instead of being concerned with emissions. In the end, issues with turbo lag and cooling killed the turbo bikes.

Yet, we have the supercharged Kawasaki H2 30 years later.

Almost all diesel vehicles use turbocharging to force in more air and clean up exhaust emissions. The bonus is of course, more power and torque from the engine. The manufacturers overcome turbo lag by either utilizing dual turbochargers are turbochargers with variable geometry vanes (VGT). That is why Kawasaki opted for a supercharger instead. Let’s hope Yamaha can address the issue in their own way, too.

Sources: Ride Apart, AMCN, Bennets, Free Patents Online

Leaked patent sketches indicate possibility of a turbocharged Suzuki GSX-R being developed.


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Having shown us the Recursion concept during the 2013 Tokyo Motor Show, Suzuki’s intent at bringing forced induction into bikes is very clear indeed. Fuelling the flame further are rumours of said concept being finalised for production in the last few months, followed by the fact that the mighty S-brand’s move towards trademarking the ‘Recursion’ name and filing patents for designs surrounding the bike’s unique powerplant.


Well, at the on-going 2015 Tokyo Motor Show, it appears that Suzuki are indeed one step closer towards making the Recursion a production reality. At the heart of Suzuki’s stand was this, a compact and turbocharged two-cylinder engine called the EX7, presumably made for Recursion.

Other than the fact that it has twin camshafts (DOHC) and four valves, Suzuki did not say much about this turbocharged and intercooled parallel twin. It is presumed that the mill displaces about 588cc, which was the quoted engine size of the Recursion concept. The concept also envisioned the mill to generate just over 100hp and at least 101Nm of torque too – not bad for its size.


There is still no sight of the Recursion concept’s production version during the 2015 Tokyo Motor Show, which likely suggest that we will only see it next year or early in 2017. However, we are led to believe that Suzuki could surprise all with a reveal in this year’s edition of EICMA that will take place in just several weeks time in Milan, Italy.


Sources: Asphaltandrubber and Visordown

Patents filed online indicate possible production plans for the turbocharged Suzuki Recursion Concept.


Rumours and re-registered “Gamma” and “Katana” naming rights indicate strong possibility of Suzuki Recursion Concept’s production prospects.


Taking a bold new path, Kawasaki and Suzuki both unwrapped their iteration of their future of bike engines – force-induction. (more…)


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