Ducati, maker of high-performance engines with fancy valvetrains, has a brand new high-performance engine with a flowery valvetrain. The distinctive characteristic with this one is that it’s a mere single cylinder, lopped off of a twin-cylinder Panigale, which Ducati claims to be essentially the most highly effective thumper available on the market. That’s true, based mostly on pure horsepower, however I posit that it doesn’t matter — and that the rider could not even discover.
The new Ducati Superquadro Mono engine makes 85 horsepower, 10 greater than the earlier chief from Husqvarna. Of course, as any tuner will inform you, these peak numbers don’t matter a lot — it’s space underneath the curve that you simply actually really feel. Interestingly, although, Ducati offers us much more info than simply these peak figures. From Ducati’s web site:
The new Superquadro Mono is able to reaching 10,250 rpm, values by no means achieved earlier than with a road-going single-cylinder, and has a most energy of 77.5 hp @ 9,750 rpm, a benchmark worth for the phase, whereas the torque worth is 46.4 lb-ft at 8,000 rpm.
70% of the torque is already accessible at 3,000 rpm, and the worth by no means drops under 80% from 4,500 to 10,250 rpm. Power and torque will be additional elevated by 7 hp and torque by 2.9 lb-ft by becoming the racing exhaust designed for the brand new Mono. Benchmark upkeep intervals for the class: the oil change is scheduled each 9,000 miles, with the valve clearance test each 18,000 miles.
There are a couple of info in right here that we will use to get a common sense of the engine’s character:
- 32.48 lb-ft at 3,000 RPM
- 37.12 lb-ft at 4,500 RPM
- 46.4 lb-ft at 8,000 RPM
- 77.5 horsepower at 9,750 RPM
Given that horsepower is only a perform of torque and RPM, we will calculate out the remainder of the values for these particular RPMs:
Then, graph these factors, clean the strains out a bit, and we get one thing resembling a dyno chart. It’s price noting that that is based mostly on formulation utilized to restricted information, and sure gained’t match a real-world dyno graph, however it’s a useful visible when interested by these numbers in comparison with different rivals.
Compare this to a dyno run from the now-dethroned quickest thumper, the KTM 690 Enduro R (and Husqvarna 701 bikes), and also you’ll discover some similarities. The torque curves on each bikes have near-identical shapes, and the numbers themselves are even comparable — as soon as you are taking drivetrain losses under consideration, the Ducati is probably going much less highly effective throughout a lot of the rev vary.
The Ducati single is, by peak horsepower, essentially the most highly effective single-cylinder at the moment provided in a bike (or it will be, as soon as the motorbike that includes it’s revealed this coming Thursday). Yet, throughout a lot of its helpful rev vary, it possible gained’t really feel a lot quicker than a Husqvarna 701 or KTM 690.
Peak numbers are enjoyable, however you’re by no means going to maintain a motorcycle pegged at peak horsepower for a full monitor lap. When you’re speaking about variable rev ranges, the realm beneath the curve — how a lot torque and energy you must play with all over the place — issues extra. In that respect, the Ducati seems to fare no worse than different high-powered thumpers. It’s simply not a lot better, both.
Source: jalopnik.com