More McLaren Senna Info Spills Forth: Here\'s What You Need To Know

It Has a Next-Level Suspension

Like the P1 before, the Senna relies on a hydro-pneumatic damper package that links the dampers both transversely and longitudinally. This system gave the P1 a docile demeanor on the street while maintaining razor-sharp precision on a track. When put in Race mode, the Senna drops its already low nose a further 1.2 inches and its rear by 0.9 inch. This rake improves the diffuser’s performance and offers little ground clearance. The front is so low that McLaren fitted a sacrificial section to the splitter that is easily swapped out using exposed fasteners.

The Rear Wing Is Top-Mounted

The so-called swan-neck mounts are ripped right from the world of racing. By keeping the bottom edge of the airfoil free of mounting pylons, the wing’s business edge can maximize its ability to push the Senna onto tarmac. Under braking, the wing snaps upright to act as an air brake. The rear wing weighs just 11 pounds.

It Uses Aero Tech Outlawed by Formula 1

Formula 1 banned double diffusers for the 2011 race season, but that doesn’t mean McLaren can’t put them on road cars. Diffusers can generate as much or more downforce as wings. As are most such pieces on high-end supercars, the diffuser is made of lightweight, strong, and stiff carbon-fiber-reinforced plastic. Of course, so is most of the rest of the car. From the central tub, to the one-pound front fenders, to the seven-pound seats, it’s all carbon fiber. McLaren has put all its chips on the black weave, so much that it just christened a new carbon-fiber factory in Sheffield, England. While the Senna’s tubs will come from Austrian supplier Carbo Tech, the three-seat BP23 tubs will serve as Sheffield’s pilot build. After the 106 planned BP23 tubs are off the assembly line, we suspect the tubs for McLaren’s next-gen Sport Series (the part of the lineup that currently includes the 570S and 570GT) models will be the next batch to bake in Sheffield’s autoclaves.

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Auxiliary Windows

The glass panels in the lower doors and the roof are purely there to make the cabin feel airier. Seeing the road rush by out of the corner of your eye increases the sensation of speed, as when riding a motorcycle, too. But don’t believe anyone who says the knee-height windows are to improve corner visibility, as anyone using them to spot apexes will promptly become an internet sensation. The lower door side, roof, and rear portions use Gorilla Glass, as do most smartphones, but if one wants you can order the car with carbon-fiber inserts instead. If we were lucky enough to spec a Senna of our own, the only glass we would opt for is in the rear, just so we can catch a glimpse of the engine every now and again.

Updates for the

M840TR

McLaren’s twin-turbo 4.0-liter V-8, named M840TR here, gets a rework for duty in the Senna, where it makes 789 horsepower. To get to that output level, engineers swapped in new camshafts, redesigned the intake and plenum (now with a roof intake), and fitted two high-flow fuel pumps. The intake plenum also is made of carbon fiber and, at six pounds, weighs about half as much as the cast unit in the 720S. Compared to the 710-hp engine in the 720S, the Senna’s V-8 churns up its greater power at 7250 rpm, 250 rpm lower, and produces 22 additional pound-feet of torque (590 lb-ft at 5500 rpm) with a pair of low-inertia twin-scroll turbos. As much as 516 lb-ft is on tap at 3000 rpm. The engine will be tasked with moving what we expect is a 2850-pound car when loaded with fluids. We may never have the opportunity to confirm McLaren’s performance claims from this extra-limited hypercar—zero-to-60 mph in 2.7 seconds and a quarter-mile pass of 9.9 seconds—but we have typically bested McLaren’s estimates by a tenth or two when we’ve tested their models in the past.

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There Is a Wee Bit of Steel in There

McLaren sweated the details in order to reduce mass as much as possible. Of the eight control arms on the car, only two—the front lower units—are steel. The rest are forged aluminum. Woking also swapped out 6mm fasteners for smaller, 5mm fasteners in some cases, while redesigning the bolt heads in others, for a 33-percent mass savings. The exhaust is made of exotic Inconel and slightly less-exotic titanium. Also, it is worth noting that the audio system weighs just 16 pounds.

To the 24 It Will Go

McLaren isn’t a company to build a low-volume car without purpose. The F1 was a game-changer meant to show the firm’s might. The P1 was a proof-of-concept that hybrids have a place in the future of sports cars. And while it will not officially confirm it, all signs point to McLaren returning to the 24 Hours of Le Mans with the Senna. Given the speed of today’s prototype racers, there is little chance that a Senna GT3 car could repeat history and take an overall title, as the F1 did in 1995, but McLaren has its sights set on following in the reborn Ford GT’s tire tracks with a victory in the GTE Pro class. There, it will face off against the Ford, a couple of Chevrolet Corvettes (potentially of the mid-engined variety), Ferraris, and Aston Martins.

Source : https://in.news.yahoo.com/more-mclaren-senna-spills-forth-223700413.html

More McLaren Senna Info Spills Forth: Here's What You Need to Know
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More McLaren Senna Info Spills Forth: Here's What You Need to Know
More McLaren Senna Info Spills Forth: Here's What You Need to Know