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Did someone say 4 Valve DOHC?


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Guest ratchethack
Posted
Nope, not here :rolleyes:  You must be on a different channel  :huh2:

Check the tech data sheet on the big motor (at the crank).

Guest golden goose
Posted

Aprilia is just sooooo with it! Look, it has chain final drive! The power transmission system of choice for the automotive industry! Right up til 1906..................

Posted

Umm anyone else see a problem with this picture. 103hp @ 8000rpm put of the dual overhead cam motor. Errmm one of the main advantages of dual overhead cam is it lightens the load on the valve train which means you can use lighter springs, pull more rpm more hp. Even Guzzi's four valve motor in Daytona RS form at least reved harder than that. Aprilias dirt bike 450 sohc V twin goes to something stupid like 13 000 rpm with 60hp out of the 450 and 70 out of the 550.

 

Athough admittedly Guzzi is in a simlar postion to HD they can't keep punching out the same motor they have for the last 40years bung it in a frame and call it a sports bike and be taken seriously. The bore stroke is very oversquare athough why are they bothering with an 850 or does it slip in under some of the power to wieght restrictions for various liences or insurance catogries. Chain drive for a bike is signifcantly lighter and mroe efficent in trasfering the power if this motor makes it into a Guzzi maybe we are going to see a serious tilt at a performance Guzzi.

 

Just remeber about a year maybe two ago Gilera showed a concept bike with push button / auto transmission it was a 850 V twin, probally the beastie from this project athough it looks pretty far along for a concept.

Posted
..... Chain drive for a bike is signifcantly lighter and mroe efficent in trasfering the power if this motor makes it into a Guzzi maybe we are going to see a serious tilt at a performance Guzzi.

 

.....

78345[/snapback]

 

If it's that easy you can have it everyday. Aprilia did it already, just changed the color and a bit plastic and, voilà, ready was the new Laverda.

 

At least they thought so...

 

Hubert

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