2005 MV Agusta F4-1000 S
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Another uncomfortable, impractical liter four-cylinder supersport. Yawn.
Plus, MR ALLCAPS says nothing wheelies like a gixxer.
OK, OK, the damn thing's beautiful and I want one just like every other motohead. Like the 916 series, this design refuses to age.
Plus, MR ALLCAPS says nothing wheelies like a gixxer.
OK, OK, the damn thing's beautiful and I want one just like every other motohead. Like the 916 series, this design refuses to age.
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1,538 Posts
Re: radial valves
Francis,
I believe (but I could be wrong) that MV uses the term "Radial Valve" as a description of the relative position of the four valves in the cylinder head. In the MV's case the valve stems are splayed-out a bit so that the four valve faces are arranged radially in the combustion chamber. It sorta makes me think "Hemi" -Sean
Francis,
I believe (but I could be wrong) that MV uses the term "Radial Valve" as a description of the relative position of the four valves in the cylinder head. In the MV's case the valve stems are splayed-out a bit so that the four valve faces are arranged radially in the combustion chamber. It sorta makes me think "Hemi" -Sean
Re: radial valves
Usually valves are parallel pairs: exhausts toward the front,
intakes toward the rear.
MV splays the pairs apart so that they're each aimed more
toward the center of the cylinder.
I think the cam lobes are shaped slightly strangely like cones
instead of parallel-sided to match. You'd think this would
cause odd thrust angles and funny wear, but what do I know?
I'll leave it to the flow-bench-knowledgeable to tell us whether
radial is better for four valve motors...?
Usually valves are parallel pairs: exhausts toward the front,
intakes toward the rear.
MV splays the pairs apart so that they're each aimed more
toward the center of the cylinder.
I think the cam lobes are shaped slightly strangely like cones
instead of parallel-sided to match. You'd think this would
cause odd thrust angles and funny wear, but what do I know?
I'll leave it to the flow-bench-knowledgeable to tell us whether
radial is better for four valve motors...?
"However, that didn't last long and Italy's insistence on twin cylinder power surely didn't help." Another prediction by the Great Motorcycle Prophet vindicated. Nice Review sexy bike too bad Tamburni won't be able to design the new V-4 Ducati Streetbike coming soon..
KPaul
The Great Motorcycle Prophet
KPaul
The Great Motorcycle Prophet
David Ogilvy Would be Proud
I swear! The way Yossef describes things, he could probably sell me a Puch-Moped and it would be a week before I realize, I'd been had. That was some really good writing.
As for the $21,495.00 MSRP "GASP!" Okay, the damn thing is absolutely beautiful, and it does measure up, Spec-Wise, but thats some serious freight to pay for engineering that can be had for a lot less.
Hey, Yossef! Would you mind helping me out, the next time Im thinking about buying a, vintage, Stratocaster? Those old Strats are generally awful, but you could probably talk me into anything.
I swear! The way Yossef describes things, he could probably sell me a Puch-Moped and it would be a week before I realize, I'd been had. That was some really good writing.
As for the $21,495.00 MSRP "GASP!" Okay, the damn thing is absolutely beautiful, and it does measure up, Spec-Wise, but thats some serious freight to pay for engineering that can be had for a lot less.
Hey, Yossef! Would you mind helping me out, the next time Im thinking about buying a, vintage, Stratocaster? Those old Strats are generally awful, but you could probably talk me into anything.
Joined
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10,903 Posts
Re: David Ogilvy Would be Proud
It depends on the premium you're willing to pay for beautiful. The frame, the wheels, triple clamps, etc are all painstakingly detailed.
Don't forget to factor in exclusivity which the MV has in spades.
A Corvette can go as fast as a Ferrari you know.
It depends on the premium you're willing to pay for beautiful. The frame, the wheels, triple clamps, etc are all painstakingly detailed.
Don't forget to factor in exclusivity which the MV has in spades.
A Corvette can go as fast as a Ferrari you know.
You've probably read Sean's explaination of radial valves in the thread above by now. What Sean didn't mention is that the radial valve configuration in production motorcycles has been in use since at least 1983 by Honda, as the XR 350 I explored Baja on had them. Look on any older Honda thumper and if you see RVCC on the head it means radial vavle combustion chamber. VWW
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