| Author | Message | ||
     Ccryder |
Hmm, which was the chicken and which was the egg? Recognizing that the key to a successful V engine is to keep it as compact as possible, Aprilia have found an innovative way to drive the dual overhead cams; the inner (inlet) cams are driven by a conventional chain, and the outer ones are actually driven by the inner ones, through a series of gears. Can anybody say "Helicon"? http://www.gizmag.com/go/8129/ http://www.thebikergene.com/racing/aprilia-unveils -its-207-horsepower-1000cc-v4-superbike/#more-61 Just the 1st time I had read that they used the one cam driving the other. Neil S. | ||
| Jaimec |
Doesn't Rotax provide the engines for Aprilia? | ||
| Id073897 |
Doesn't Rotax provide the engines for Aprilia? Not any more, Aprilia is now making their own engines. Regards, Gunter | ||
| Oddball |
I think the ktm has that cam drive too now. Saw it on something other than a helicon recently. Edit: Found it, the 2009 VMAX has chain drive to the intake cam which then gear drives the exhaust cam. (Message edited by OddBall on June 04, 2008) | ||
| Ferris_von_bueller |
It can't be that innovative or it would be patented !!! | ||
| Ducxl |
The Desmosedieci is better,and with less parasitic loss from valve spring friction. The Aprilia,however,may be available to us mere mortals.Sounds great.I wonder what the firing order is like.BIG BANG? | ||
| Paulxb12r |
220 HP that more than a busa clams to put out that’s going to be one hell of a bike. | ||
| Teddagreek |
the RSV1000 is in its last year... Rumor mill the V4 an option on the predecessor.. Guys at the dealership told me aprillia plans V4 is going to be very affordable what ever that means.. |
