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Buell Forum » Quick Board Archives » Archive through June 07, 2008 » Aprilia's V4 superbike engine « Previous Next »

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Ccryder
Posted on Wednesday, June 04, 2008 - 08:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

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.
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Jaimec
Posted on Wednesday, June 04, 2008 - 08:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Doesn't Rotax provide the engines for Aprilia?
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Id073897
Posted on Wednesday, June 04, 2008 - 11:15 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Doesn't Rotax provide the engines for Aprilia?

Not any more, Aprilia is now making their own engines.

Regards,
Gunter
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Oddball
Posted on Wednesday, June 04, 2008 - 06:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

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)
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Ferris_von_bueller
Posted on Wednesday, June 04, 2008 - 06:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

It can't be that innovative or it would be patented !!!
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Ducxl
Posted on Wednesday, June 04, 2008 - 07:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

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?
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Paulxb12r
Posted on Wednesday, June 04, 2008 - 07:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

220 HP that more than a busa clams to put out that’s going to be one hell of a bike.
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Teddagreek
Posted on Wednesday, June 04, 2008 - 09:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

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..
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