The Vee 2 Ritorno
The Vee Two Ritorno Twin is a modern re-creation of the ultimate bevel-drive Ducati Desmo V-Twin engine, re-manufactured for sale using the master copy Ducati manufacturing flora drawings.
Externally faithful reproduction of belatedly ‘70’s/early ‘80’s Factory NCR race engine, equally used past times Mike Hailwood to win the 1978 Isle of Mann TT on his legendary comeback victory.
Crankcases together with other major castings are sandcast inwards high forcefulness estrus treated aluminium, amongst many covers cast inwards magnesium alloy.
Although externally historically accurate, all engine internals are manufactured using modern materials together with up-to-date design.
The Vee Two Ritorno Twin engine retains the external appearance of the criterion belatedly ‘70’s together with early on ‘80’s production bevel-drive Ducati V-Twin engines, equally required past times TT Formula 1 eligibility regulations. However, it contains the modified internal specification of the factory-developed NCR Ducati contest models. Its re-creation has been achieved using master copy manufacturing flora drawings of the 1978 NCR Factory Ducati engine equally raced past times Mike Hailwood to victory inwards the Isle of Mann TT that same year.
This engine was never lay into production, exactly was a culmination of the information acquired inwards going racing successfully past times Ducati manufacturing flora engineers including Fabio Taglioni, Franco Farnè together with Gianluigi Mengali, equally good equally Rino Caracchi together with Giorgio Nepoti of NCR. This began amongst the 1-2 success of Paul Smart together with Bruno Spaggiari inwards the 1972 Imola 200, through the factory-supported NCR Endurance team’s victory inwards the 1973 Barcelona 24 Hours, to the engines prototyped for Mike Hailwood to race inwards the 1978 Isle of Mann Formula 1 TT.
The engine is easily identified past times the external spin-on petroleum filter mounted mid-engine on the lower left manus crankcase. It is the alone bevel-drive Desmo V-twin to survive prototyped amongst this feature, together with was too fitted amongst a dry out clutch. Although it was planned to lay the engine into production, fewer than ten examples of it were inwards fact produced, together with production was never implemented owing to internal disputes together with corporate doubt inside Ducati at the time, which eventually led to Cagiva acquiring the society inwards 1985.
The internal format of the Vee Two Ritorno Twin incorporates electrical flow technology roofing air-cooled engine design, together with the latest inwards available weight saving materials. Such technology has non previously been applied to production bevel-drive Ducati engines, together with includes:
New pattern of cylinder together with cylinder head
Bath tub sleeping accommodation pattern cylinder heads amongst steeper valve angle
One slice cylinders for improved rigidity together with estrus transfer amongst Nikasil coated bores for reduced friction
Tapered collets on desmodromic valve gear equally on electrical flow Ducati Superbike race engines, permitting sustained high RPM
Improved exceed destination cooling utilizing petroleum spray bars together with spray nozzles, therefore improving estrus transfer together with dissipation to permit a sustained higher might output
Dry clutch organisation for lighter weight together with to keep lower petroleum temperatures
Plain bearing large destination bearings, replacing roller bearings for added durability
High-strength lightweight reciprocating components such equally conrods, pistons, valves etc
The crankshaft is designed amongst obviously large destination bearings, amongst a radically improved high pressure level petroleum scheme designed past times Vee Two, the centre of which is our Vee Two billet petroleum pump. This scheme includes pressure level fed gearbox lubrication.
The cylinder heads are the largest improvement over the criterion Ducati items, which convey 80° included angles inlet together with exhaust. The Vee Two Ritorno Twin has a narrowed 56° valve angle allowing an improved combustion sleeping accommodation pattern together with inwards plough optimised catamenia during valve overlap. With modern materials such equally titanium for the valves, lowering reciprocating inertia, together with upwards to engagement designs such equally tapered collets on the valve stems which positively connect the valve to the Desmo rocker, the Vee Two Ritorno Twin’s cylinder heads comprise cutting border performance amongst authentic bevel crusade looks.
These modern improvements allow us to fully exploit the vast improvements available from the role of desmodromic valve operation, namely ultra-square camshaft profiles without the employment of valve float.
The cost is AU$38,000 which includes a consummate digital ignition system, together with a alternative of carburettors together with exhaust scheme options are available at extra cost.
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