Sunday, June 14, 2009

The Yamaha R1 2009



I've always like bikes but well if only i knew i could have taken a B-full license last time... i would have taken it and be able to ride a higher capacity bike. My latest addiction is the sound the road-going Yahama R1 2009 makes. The rumbling from the twin titanium exhaust. The sound it makes when all 180bhp and 115.5Nm of torque unleashed is intoxicating.

The engine is a 998cc, 4 cylinder thats identical to the ones used in the MotoGP. Wonderful little thing. This bike has all the tech that will make a Proton look like a toy. Imagine variable length air intake, fly-by-wire YCCT electronically managed throttle inputs and lots more.





i think the way Yamaha solve the composite torque problem is cool. u see, when a engine with pistons undergo combustion, the power cycle creates a throttle torque which is controlable by the rider. but as u know after the power stroke, the crank is rotating purely on inertial torque which is fast when at bdc and slow at tdc. this causes a non-linear torque curve which is undesirable by the rider. they prefer a linear curve respond to the throttle. their solution? by altering the even firing order to a 270-180-90-180 uneven firing order. the noise u hear from the exhaust is from this unique firing order.



If only Yamaha has a manufacturing plant here...can go for Yamaha as well.. too bad... our choices are very limited. by the way this bike cost around USD 15k which is almost the price of a cheap car here.. minus taxes of course.. with taxes, this thing will cost a bomb.

No comments: