Ducati Desmoquattro motorcycles — Wikipedia, the free encyclopedia

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Ducati Monster S4R S Testastretta

Ducati Desmoquattro motorcycles

The Desmoquattro are water-cooled, four-valve from Ducati. They been produced since in capacities from 748 to 1,198cc to 73.1cuin).


Desmoquattro vs. [ edit ]

Castiglioni brothers Cagiva bought Ducati in May and decided to start new investments in to compete with Japanese To do this they needed a new engine, so they had a look different proposals from department. The two best solutions the Bipantah. a stillborn 994 cc air-cooled V4 [ 1 ] and the . a liquid cooled, multi-valve, injected evolution of 750 cc V-twin. long technical discussions, preferred Desmoquattro over . because the first could be installed inside the cradle of the models. [ 2 ]

The Early Desmoquattro — 996S) [ edit ]

The water-cooled Ducati Desmoquattro that has dominated World racing was introduced in 1987 in 851 form, and despite subtle and increases in capacity, from to 888, 916, and then remains true to the 851 motor by Massimo Bordi. That 851 was the successful adaptation of Ducati’s valve actuation to a four per cylinder engine, and began with a 40-degree included angle. This was also the of liquid cooling and computerised injection to the V-twin range.

had experimented with four-valve but had stuck to his 80-degree included angle, not realising that a lower included valve was needed for the benefits of the layout to apparent.

In 1991 Ducati the capacity of the 851 to 888cc, creating the 888

In 1995, the company introduced the 916 model designed by Massimo with striking new bodywork featured aggressive lines, exhausts, and a single-sided swingarm. [ 3 ]

in 1999 The Ducati 996 competed Honda’s (VT1000) Firestorm in the U.S.), Suzuki’s TL1000S the later TL1000R) and the Aprilia RSV (and the later Mille R).

The engine had larger 98mm pistons, larger valves, a crankshaft and crankcases from the 916 But the 916 camshaft gave a softer, peaky power delivery and top-end power: Output was (112bhp) as against the SPS’s (124bhp)

From 1999, were three different 996 the first two being the 996 Biposto and the (with Öhlins suspension and the of the 996SPS)

The Testastretta (996R — [ edit ]

The 2001 996R. of the 996 models, had the 998cc engine and new (‘Narrow Head’) head, little different from a but producing 135bhp (100kW) @ and 105 N·m (10.3 kgf ·m, 74.5 ft·lbf ) of at 8,000rpm. It had a six-speed gearbox.

The new head’s included valve was reduced from 40 degrees to 25 which was more in line current F1 four-valve theory. The and … dimensions changed 98mm x 66mm to 100mm x giving a true 998cc and even bigger valves.

In the Ducati 998 appeared, and only for one season. The basic SP model a combination of items from the bins of higher specification of the 996, but unlike the 996, had the engine in all 998 models. There also some chassis and modifications.

Ducati Monster S4R S Testastretta

The 2003 Ducati 999 was designed by Terblanche, amid much and criticism relating to the styling.

The 999 produced 124bhp (92kW) @ It was followed by the more powerful producing 136bhp (99kW)) @ and 106 N·m (10.8 kgf·m or 78.2ft·lbf) @ and then the 999R versions introduced producing 139bhp and 11 kgf·m (108 N·m) @ capable of 0-62mph in less 3 seconds and with a top speed of 170mph (275km/h).

In 2005 improvements as well as engine were standard. The base 999 was a 140bhp engine and outfitted an adjustable Showa suspension, the 999S model had 143bhp and a top of the line Öhlins suspension. The was the only 999 model to displace a 999cc (the others 998cc; the 2002 998R displaced 999cc) and the engine is for 150bhp (112kW).

The Ducati 749 and its variants (including the are similar to the 999, but the 749 has a lower smaller, higher revving and slightly smaller rear

The Ducati 999R Xerox replica was introduced in 2006.

Evoluzione (1098) [ edit ]

The Ducati 1098 featured a new called the Testastretta Evoluzione It had larger displacement, larger narrower included valve better breathing through throttle bodies and butterfly lighter weight (including valve covers), and higher than its predecessors. [ 4 ] Ducati this to be the most powerful production motorcycle engine in the [ 5 ]

Desmotre [ edit ]

The liquid-cooled ST3 engine has two 34mm intake and one 40mm exhaust valve and an angle of 40°. The Desmotre 102hp (76kW) at 8,750rpm and 9.5 (93 N·m) of torque at 7,250rpm. The is aimed at meeting anti-pollution to be introduced.

Ducati Monster S4R S Testastretta

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