[awiner]

Official information is now out on the 2007 Yamaha R1. Yamaha is rating its horsepower at 189 ! Wow.. That is close to the Kawasaki ZX-14 terrority.

[Nevermore]

Official Specs From Yamaha

**180 HP (189 with Ram Air) @ 12,500 RPM
**All New In-line 4 Cylinder Engine
**4 Valve Cylinder Head
**Titanium Intake Valves
**Slipper Clutch
**Variable Intake Funnel
**Fly by Wire Throttle
**Delta-box Frame
**New asymmetrics Swing-arm
**Re-Designed Front Forks
**Improved Suspension
**6-Piston Front Calipers
**310mm Front Disc
All-new, light, powerful and packed with trickle-down MotoGP trickery, the YZF-R1 is the most advanced Open-class production motorcycle ever built.
All-new inline four-cylinder engine is the most powerful, tractable R1 powerplant ever, thanks partially to the world’s first electronic variable-length intake funnel system.The YZF-R1 uses the YCC-T fly-by-wire throttle system for flawless response under all conditions.
Slipper-type back torque-limiting clutch greatly facilitates braking/downshifting from high speed.
All-new aluminum Deltabox frame and swingarm take Open-class handling to the next performance level.
New, six-piston radial-mount front brake calipers and 310mm discs generate the kind of braking power a bike like the new R1 requires.
Engine:


Short-stroke 998cc DOHC, 16-valve, liquid-cooled inline four- cylinder engine produces more tractable power than ever.
Yamaha Chip Control Throttle controls a 32-bit ECU fuel injection system for super-responsive, smooth, instantaneous power delivery.
Yamaha Chip Control Intake electronically adjusts intake funnel length between either 65 or 140mm for an amazingly broad, smooth powerband.
Two-piece ergonomically designed fuel tank carries fuel in the rear section, for good centralization of mass, while the front half contains a Ram-Air-fed airbox for increased power.
Lay-down design cylinder head optimizes weight distribution, straightens intake tracts for improved cylinder filling, and allows frame to pass over instead of around the engine for great strength and a narrow chassis.
Closed-deck cylinder block increases strength and allows a narrow engine in spite of big, 77mm bores.
Narrow-angle four-valve combustion chambers produce a highly efficient 12.7:1 compression ratio; 31mm titanium intake valves and 25mm exhausts controlled by new, high-lift cams flow plenty of air.
Light and strong nutless connecting rods with fractured big ends produce a quick-revving engine with excellent high-rpm durability.
High silicon-content ceramic-composite cylinder sleeves ensure great heat dissipation for consistent power delivery and reduced friction.
Close-ratio six-speed gearbox with triangulated shaft layout for great strength, compactness, and quicker acceleration.
Ramp-type slipper clutch makes braking from speed into tight corners while downshifting smoother and therefore faster.
Redesigned titanium underseat exhaust system (with stainless steel midpipe and catalyst) provides excellent cornering clearance and a broad, seamless powerband.
13-percent greater radiator capacity and an aluminum liquid-cooled oil cooler maintain stable operating temperature.
Direct ignition coils, dual-electrode spark plugs and high-output magneto deliver extremely accurate, reliable firing.
AC generator behind cylinder block produces a narrow engine with excellent cornering clearance.
Chassis/Suspension:


An all-new Deltabox frame tuned for optimal flex carries the lay-down four-cylinder stressed-member style, for great handling and efficient aerodynamic penetration.
A new truss-type swingarm is extremely strong and tuned for optimal traction and feedback.
Dual 310mm front disc brakes; new, six-piston radial-mount calipers and Brembo radial-pump front master cylinder with adjustable lever deliver amazing braking power and feel.
Fully adjustable KYB inverted telescopic front fork with 43mm tubes has been revalved to complement other chassis changes.
Piggyback rear shock now offers both high- and low-speed compression adjustability, rebound damping and a new, twist-style spring preload adjuster.
Light, five-spoke wheels enhance acceleration, deceleration, handling and suspension action.
Additional Features:
Redesigned headlights provide great illumination and distinctive style, while the LED taillight is light, bright and highly efficient.
Adjustable LCD illumination and multi-function digital gauges: adjustable shift light, odometer, dual tripmeters, water temperature, air temperature, full-time clock, lap timer and large 15,000 rpm analog tachometer.
New-design fairing with bigger Ram-Air intakes and screwless windscreen provides maximum aerodynamic efficiency and engine performance.
Sticky 120/70-ZR17 and 190/50-ZR17 radial tires for incredible grip and precise handling.
Forged footpegs are extra durable and light.
Extensive use of hollow bolts and lightweight fasteners helps trim overall weight.
8.6 AH battery is compact and light.
Durable #530 O-ring–sealed drive chain.
Standard toolkit located in convenient storage compartment under passenger seat.

[Nevermore]

The biggest shock to me is 16 Valves, hmm.

[Nevermore]

OK, here's some explanation for the valves. Titanium, mmm, must be good.

http://www.superbikeplanet.com/2006/...00930clock.htm

So how is the Yamaha variable intake different from the MV? altoon?

[altoon]

Originally Posted by Nevermore

OK, here's some explanation for the valves. Titanium, mmm, must be good.

http://www.superbikeplanet.com/2006/...00930clock.htm

So how is the Yamaha variable intake different from the MV? altoon?

it's not different. same idea. same execution, except maybe for the actuator.

btw, i think yamaha will probably retort that this is a the first time for this system on a "production" motorcycle, since the tambo was only 300 units.

[style_one]

Originally Posted by altoon

btw, i think yamaha will probably retort that this is a the first time for this system on a "production" motorcycle, since the tambo was only 300 units.

oh, now i see how they could make that statement. i can already hear the arguments about who had it first at the bike nights...followed by the yamaha's got it for 4x less than the MV that offered it.

[Some Guy]

Originally Posted by altoon

it's not different. same idea. same execution, except maybe for the actuator.

btw, i think yamaha will probably retort that this is a the first time for this system on a "production" motorcycle, since the tambo was only 300 units.

On a motorcycle, yes. BMW has had it on thier cars for several years now, I think they were the first to apply the variable intake plenum length on a production car.

[altoon]

Originally Posted by Some Guy

On a motorcycle, yes. BMW has had it on thier cars for several years now, I think they were the first to apply the variable intake plenum length on a production car.

For cars, it's been in use for quite a while, back to the late 80's at least.
A brief list is here.

[pinto_amg]

Here are the pics of the 2007 Yamaha R1

[quacker998]

'world’s first electronic variable-length intake funnel ' I thought the tam had this?