This photo has already been examined in detail on the Apriliaforum and it has been confirmed to be an old photo of the early Aprilia Cube. Sorry, it's not the V4, but everyone wishes that the new bike looked that sweet!!!
This photo has already been examined in detail on the Apriliaforum and it has been confirmed to be an old photo of the early Aprilia Cube. Sorry, it's not the V4, but everyone wishes that the new bike looked that sweet!!!
Aprilia has announced that it's much anticipated V4 superbike engine is undergoing testing in various states of tune, ranging from a shoulder-dislocating 185bhp up to a totally bonkers 220bhp! Combined with the Italian company's plans to build a road-going superbike, this is a very exciting piece of news indeed.
Many of the MotoGP prototype machines now use V4s for their favourable torque and power delivery characteristics, so it was only a matter of time before this technology was used for production road machines. What isn't clear however, is where Aprilia will decide to race the new bike. Despite claiming that they plan to campaign the bike as early as 2008, it's not yet known whether they'll race in Superbikes (along with several other newcomers - KTM, BMW, and MV Augusta) or build a scaled-down 800cc motor and try to make their mark in the top flight.
Durability testing will decide in what state of tune the motor arrives for road use, but should they go for the full-fat 220bhp it's a certainty that they will trump every other sports bike on the planet.
STAT BOX
Displacement: 999 cc
Layout: 65° V4
Engine body: monoblock with liners integrated in crankcase
Power: more then 220bhp in Superbike configuration.
Valve gear: 4 valves per cylinder (titanium and Nymonic) operated directly by camshafts driven by a mixed chain/gear drive, with lateral chain and central gears.
Fuel system: electronic fuel injection with two injectors and independent ride-by-wire control for each row of cylinders.
Anti-vibration balancer shaft
Maximum engine speed: 13,500 rpm
Compression ratio: 12.5:1
Gearbox: six speed cassette type
Clutch: multi-plate in oil bath with slipper system
Electronics: Magneti Marelli ECU for ignition, injection and ride-by-wire management.
Many of the MotoGP prototype machines now use V4s for their favourable torque and power delivery characteristics, so it was only a matter of time before this technology was used for production road machines.
Preach it... V4s are noted for their "favorable torque and power
delivery characteristics" and after you ride one maybe you'll
understand when I say that the latest I4 Motor of Death feels
unfavorable with it's narrow power delivery...
"During last week's Jerez tests for 125 and 250 GP teams the Aprilia V-4 development mule was also seen again, with German rider Alex Hoffman at its controls. On day two while heavy rains kept all the GP guys inside their garages Hoffman put in significant mileage- good work Alex!
When first seen in early testing the V-4 was mounted inside an RSV chassis and bodywork but now appears to have its own frame and swingarm. It's not half bad lookin' at this point though the final styling hasn't been revealed. Insiders say the motor is now making over 210bhp in race form with more to come.
With World Superbike's latest rule changes including an increase in minimum production numbers perhaps Aprilia will need to make this bike semi-affordable."
Preach it... V4s are noted for their "favorable torque and power
delivery characteristics" and after you ride one maybe you'll
understand when I say that the latest I4 Motor of Death feels
unfavorable with it's narrow power delivery...
Taking a look at current I4 power delivery show torque figures on par with the torque leading V2 at similar rpm with significantly more top end. The power band of the I4 isn't as narrow as it once was so this will be hard for a V4 or any twin to beat.
__________________
2006 BMW HP2
2011 Husqvarna TE630
Sour grapes are a lesser man's fruit.
Quote:
Originally Posted by Busy Little Shop The [fact] that the RC45 was a "relative failure" is what matters most...
Taking a look at current I4 power delivery show torque figures on par with the torque leading V2 at similar rpm with significantly more top end. The power band of the I4 isn't as narrow as it once was so this will be hard for a V4 or any twin to beat.
i would agree with this 1000%
my damn CBR or R1 make very usable power from say 5000rpms to say 12,000+ rpms
my RC51 on the other hand is whippy with its powerband
"Exercise restraint and discipline, only responding to posts from legit customers and those with constructive positive intent, you will find that the handgrenades explode harmlessly. You have many satisfied customers who are happy to have the parts you've made. My suggestion to you is keep making good parts, keep getting more customers, take care of them and let them speak for you."
Taking a look at current I4 power delivery show torque figures on par with the torque leading V2 at similar rpm with significantly more top end. The power band of the I4 isn't as narrow as it once was so this will be hard for a V4 or any twin to beat.
Granted I4 power bands are not a narrow as they once were but they
still can't match the naturally wide spread linear power of the V4...
manufactures of I4s still struggle with the I4's inherent cammy hit and
buzzy second-order vibrations or having you noticed the choking
butterflies of exhaust power valves and the power robbing spinning
counter balancers??? two slight of hand tricks the V4 don't need...
can't wait for this bike to be unleashed!!!
Linear Mode
