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Discussion Starter · #1 ·
I searched and found a few sources where the QV engine is recognized as part of the Ferrari F154 engine family. The Maserati version as stated in V8 configuration is a cross plane crank/wet sump design where the Ferrari V8 engines are flat plane crank/dry sump designs. So which version is the QV cross or flat plane crank (I know it is wet sump)? Given the redline I would assume cross plane. Forged rods, pistons? Where are the details on the internals? Sorry if I missed a thread.
 

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Discussion Starter · #5 ·
Crank pins on the V6 are 120° apart.
Interesting while neither a cross plane or flat plane by definition the 120° crank certainly gives the QV its unique exhaust note.
 

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early laverda jota triples had 180 degree cranks, which gave them a unique exhaust note.
later models were 120, like yamaha, and more "civilized".
considering the cylinder deactivation feature is for "civilized" use, they may not have wanted the engine to become nasty in nature when operating in that mode.
 

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Agree, its effectivelly two balanced triples, hence the comment about Laverdas....to me triple makes the best sound....and makes Alfa distinctly different from Maserati and Ferrari
 

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Discussion Starter · #9 ·
Have there been any engine cutaway pictures for display purposes circulating the web?
 

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lowflyer, guess we crossed on typing.
did you see the interview with the designer too? although what he didn't say is maybe more important, he did say it was unlike most other sixes because it was designed as a double triple because of the deactivation - I'm sure every bike guy who saw it thought, "which one?" or "Jota!"

distinct sound, yeah, firing order/timing degree intervals/v angle, all "non-standard" for a v6 I guess

https://en.wikipedia.org/wiki/V6_engine

good descriptions of issues of different designs - after reading this I'm thinking odd-fire Buick, with a turbo thrown on haha
 

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Outstanding! Love the symmetry of 120s. A nice hint of the flat plane of a 180 but balanced enough for deactivation. Genius! :D I've heard that most Maserati engines post FIAT group are Ferrari blocks with detuned heads. I am aware of the new Levante's Chrysler 6 as someone pointed out here. Otherwise, the classic Maserati sound is a direct sibling of the Ferrari flat plane V8s. No? Now to read the link...
 

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A cutaway display would be great at auto shows.
 

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lowflyer, guess we crossed on typing.
did you see the interview with the designer too? although what he didn't say is maybe more important, he did say it was unlike most other sixes because it was designed as a double triple because of the deactivation - I'm sure every bike guy who saw it thought, "which one?" or "Jota!"

distinct sound, yeah, firing order/timing degree intervals/v angle, all "non-standard" for a v6 I guess

https://en.wikipedia.org/wiki/V6_engine

good descriptions of issues of different designs - after reading this I'm thinking odd-fire Buick, with a turbo thrown on haha
Yeah we must have crosstyped, I know you are a bike guy too and familiar with Italian bikes....I had a ?pleasure ? of riding Jota once, almost killed me, chassis was completelly overwhelmed by that crazy engine


Can anybody recognize a bit of QV in the growl of that crazy old bike?
https://m.youtube.com/watch?v=o3l2b2qt2Mw
 

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Wow, you are lucky to have experienced one; Ive had a go or more on a heck of a lot of bikes, but only magazine impressions of those. One used the word pterodactyl to describe it.
Along with everything else I've forgotten, I remembered a few brief mentions of this gem. The internet can be great sometimes, way more information than you could get at the time on a one off, the Laverda V6, designed by Maserati's Alfieri. This is a pretty good read on it, and v6's, so maybe this AR 6 is more Laverda inspired than we thought

https://silodrome.com/laverda-v6/


and a second one created by the man who has the entire "collection" including spares, start up video

 

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Can anybody recognize a bit of QV in the growl of that crazy old bike?
I listened and I did hear remnants of the qv. That's crazy
 
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