I here Aprillia is being bought out by Ducati. It make you wonder if Ducati will be interested in MX? MAybe this motor will find a new home?




bigger.

 

no more big twins for the Dakar next year. The Aprilia V-Twin 450 will fit in the new rules. I hope Aprillia will go desert ralley racing.

 

My dealer heard that Bombardier is trying to buy Aprillia not Ducati, sure hope that rumor is true.

 

I would buy any quad that had that motor in it [img]i/expressions/face-icon-small-smile.gif[/img]

 

Anyone have specs on how much that Aprilla motor weighs?

222

 

I found lots of information, and speculation on what it weighs: (all found using just a basic Yahoo search for Aprilia 45.V2)

68 Lbs. and 70 HP, and the race version is speculated to put out 80+ HP.

Thanks to the limited unitary displacement, an extremely compact and equally light drive shaft was made possible, giving rise both to an engine which is highly responsive to the rider's control, and to a very fast easy-to-handle bike owing to the low gyroscopic effect. Even when decelerating or idling, the typical inertia of large bores and strokes is minimized. For an off-road bike, the size of the engine is as important as its performance. Aprilia's extremely advanced know how has got round all the typical size limitations of twin-cylinder engines and has pulled off a true miracle in compactness. The dimensions of this twin-cylinder engine are, in fact, smaller than the single cylinder engines currently on the market. An incredible work of refinement led to solutions such as a single overhead driveshaft as the best compromise between compactness, light weight and performance. Every single engine component has been optimized not only for maximum performance, but also for quiet running, in order to meet the sound-level limits currently being proposed for the sector; equal attention was also paid to limiting pollutant emissions. Weight was certainly not overlooked: the engine actually sets a record for its type and is moreover fitted with electric starting, the only one on the 45.V2. In order to achieve this result Aprilia did not skimp on the use of noble metals and ultralight materials. The central casing is made of aluminium-silicon, all the covers are made of magnesium, the valves are titanium, and the gearing has been made much lighter. Utmost attention was paid to fluid dynamic efficiency, thanks to powerful calculation programs which not only optimized the thermodynamic components, but also the intake and exhaust systems.


THE 45.V2 ENGINE IN A NUTSHELL

· Displacement: 450 cc.
· Type: 77° V-twin.
· Timing system: single overhead shaft controlled by a silent chain; four titanium valves per cylinder
· Maximum revs: 14,000 rpm
· Starter: electric
· Gearbox: front clutch, with 4 / 5 gears
· Clutch: multiple disc wet clutch with hydraulic control (or mechanical on request).
· Powerful compact the “Terre Rare” alternator provides sufficient power for the injection system, electric starter, battery charger and auxiliary circuits
· Lubrication: separate dual circuit. The engine oil is separate from the drive oil. The pressurized oil circuit consists of a paper cartridge filter, an oil tank and a check valve
· Forced liquid cooling with centrifugal pump.


The German website www.motorradonline.de is reporting that the engine weighs 31kg (68lbs) and produces 70 hp. Given the 180hp output of the Aprilia Superbike engine, we suspect that full race tune could see this engine making over 80hp!!!

 

As I have heard and been told there is limitations to the amount of HP that can be but in a factory quad, not so for a motorcycle. I would feel safe to bet that nowhere 70 hp will we see from the DS 450.

 

This has to be some kind of record for reviving an old thread....
This has to be some kind of record for a rumor of a quad finally becoming reality....
I said reality. The DS-450 will be shown to dealers in about a month.
The word is that it is THE most competitive 450 sport quad, and will blow everything else away.
Fuel injection, wide like the LTR, and weighing in around 335 lbs. Rotax powered.
No word on engine, single or the Aprillia V-twin, but we are assuming it will be a single cylinder. Knowing BRP, there are bound to be surprises.
No word on reverse, I would assume it would not have reverse, but would have electric start. But those are guesses.
We will know by June 8-10....
This time for sure, Rocky!

 

My understanding isn't HP it is top speed and was an agreement back from the 3-wheel law-suit days. . . BRP wasn't in the quad business and didn't sign an agreement from what I remember hearing. . .

All that being said. . . put a small sprocket on it and limit the speed that way. . . 1st mod would be the sprocket [img]i/expressions/face-icon-small-wink.gif[/img]

But, TPR said it is a single. . . I've asked him if he worked on the project or how he is in the know but, haven't got an answer. . . [img]i/expressions/face-icon-small-confused.gif[/img]

 

Well if you find out by then, you will be the last to know. BRP will reveal it to everyone on June 2.