IMSA: DeltaWing explains latest development updates, gearbox and differential


In an effort to improve overall performance, the DeltaWing Racing Cars team has made numerous updates to the revolutionary DeltaWing coupe in recent weeks. As the team heads to the Mobil 1 SportsCar Grand Prix Presented by Hawk Performance at Canadian Tire Motorsports Park – a fast, flowing track that allows the innovative sports car prototype to maximize its straight line speed – team manager Tim Keene and race engineer Alan Mugglestone highlight these updates.

The main areas of development have been the gearbox and the differential. As the coupe increases in performance, the balance between the car’s light weight and the need for stronger components has been a very delicate proposition. The team incrementally added to the strength and layout of the gearbox, with wider gears, stronger bevel gears and now a stronger mounting. The team works with suppliers for these components but the bulk of the DeltaWing coupe’s parts are designed and built by the team.

The team has also successfully tested a differential, which raced for the first time at Watkins Glen. The DeltaWing was originally designed with a very complicated and experimental electronic differential that would not only help the car drive, but turn under braking. For a number of reasons, the concept was abandoned in favor of an “open” differential. The new differential performed well at tests last month and helped put the DeltaWing coupe in the top seven for much of the first two hours at The Glen, while the car’s fuel efficiency put the car in the lead during pit stops before a problem with the gearbox mounting ended the day.

Keene and Mugglestone are optimistic heading into the weekend at CTMP, where the team saw competitive times last season.

“The DeltaWing coupe is more suited to a track that allows constant momentum,” said Keene. “The Daytona Prototypes have so much more horsepower and torque off of slow corners than we do, so the more we can keep the smaller engine revved up the better it is for us – and these next two tracks lend themselves to that. Given the weight of the car, our aero is very efficient for high speed because most of our downforce comes from the bottom of the car rather than large wings or dive planes. It’s a much more efficient way to create downforce with less drag, which is the car’s basic concept.”

“The DeltaWing concept doesn’t produce a huge amount of downforce compared to a DP or a P2,” Mugglestone added. “It was designed to be a very low drag, fuel efficient car. So when you lose a small amount of downforce as we did when we went from the roadster to the coupe, it’s a much larger percentage. The switch to Continental tires – with a bit less width on the rear tire – enabled us to modify the floor and get some of that downforce back.

“With the limited slip differential we’re running now, an unloaded wheel will transfer torque to the loaded wheel. So we picked up traction in the corners, which puts the gearbox under the same stress but for longer periods of time. We’ve backed off the horsepower to the point where we know the engine is not breaking the gearbox, because we’re below the recommended torque. We’re going faster because we have more grip, both from the tires and from the fact that we now have two rear wheels driving forward. The stronger gearbox should be able to handle that.”

As IMSA finds the balance of performance between the three disparate members of the Prototype class – the Daytona Prototype, the P2 and the DeltaWing coupe – where does the DeltaWing slot in alongside its competitors?

“We’re somewhere between a DP and a P2 in speed,” said Mugglestone. “We don’t have the DP’s power, but we’re lighter weight and we have less drag, so we actually have the acceleration of a DP – but because we didn’t have a differential in the car, we haven’t been able to use it. The P2s are at the opposite end of the scale, with much better cornering ability than either the DP or us but more drag and less horsepower. If you break down the numbers, we’re actually closer to a DP. That’s why CTMP should suit the car, since we can use the straight line speed and keep momentum going.”

As the season continues, the DeltaWing team goal is simple: to maintain the delicate balance between performance, weight and reliability.

“The changes we’ve made will strengthen us for the remainder of the year,” said Keene, “and I expect to see the results of that starting this weekend. We’re looking forward to a good weekend, since fast, flowing tracks like CTMP are favorable to the DeltaWing. So getting to the finish is the priority and if we do that, I expect a good result.”

Katherine Legge joins a returning Andy Meyrick (coming off two Blancpain victories in the Bentley GT3) behind the wheel of the DeltaWing coupe at Canadian Tire Motorsports Park in Bowmanville, Ontario, Canada this weekend.

Alternative engine solution rejected by F1 Commission

Nico Rosberg
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Plans to introduce a new alternative, cheaper engine into Formula 1 for 2017 – hypothetically a 2.2-liter V6 similar to what is seen in IndyCar – will at least temporarily go on the backburner.

The F1 Commission has rejected the so called “alternative engine solution,” where several companies submitted proposals to be that alternative supplier.

“The F1 Commission voted not to pursue this option at this stage — however, it may be reassessed after the Power Unit manufacturers have presented their proposal to the Strategy Group,” the FIA said on Wednesday.

“The parties involved have agreed on a course to address several key areas relating to Power Unit supply in Formula One,” the statement added.

Meanwhile the statement outlined four things the current manufacturers – Mercedes, Ferrari, Renault and Honda – would be tasked with improving on the current 1.6-liter formula:

Those are:

  • a guarantee of supply to teams
  • the need to reduce the engines’ cost
  • simplification of the specification
  • “improved noise”

Further meetings between the manufacturers and the governing body are scheduled, including one this weekend at the Abu Dhabi Grand Prix season finale.

As F1 heads into the final weekend of the season, political/paddock items such as Red Bull and Toro Rosso’s respective power unit futures, whether Renault’s takeover of Lotus will finally become official and what will happen with Manor’s team leadership stake – this marks Graeme Lowdon and John Booth’s final weekends although ex-McLaren man Dave Ryan has been hired as the team’s new racing director – are among the talking points.

Stoffel Vandoorne’s Super Formula test hampered by engine woes

Jenson Button, Fernando Alonso, Stoffel Vandoorne
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You couldn’t make this stuff up.

Dominant GP2 Series champion Stoffel Vandoorne had his first go in a Super Formula car at Suzuka on Wednesday, but the engine woes that have hampered his Formula 1 team’s efforts (McLaren) all season appear to be equal opportunity woes.

Vandoorne only completed a limited day of running due to technical issues; naturally, and in an unfortunate coincidence, the Super Formula cars also have Honda power.

The Belgian is now en route from Japan to Abu Dhabi, where this weekend’s final round of the GP2 season will be held alongside the Abu Dhabi Grand Prix.

FIA Formula E to remain at Battersea Park following vote

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Wandsworth Council’s Community Services Overview and Scrutiny Committee voted seven to four late Tuesday night, in favor of retaining the FIA Formula E event in Battersea Park.

This will see the London ePrix – the season finale for the electric open-wheel championship – continue at the site for at least the next two seasons.

The 2016 race will run July 2-3, to avoid a direct head-to-head clash with the British Grand Prix a week later in Silverstone.

Battersea Park’s race faced local opposition in recent weeks, which put the race under threat.

Here are your Abu Dhabi GP TV Times on NBCSN, CNBC, Live Extra

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It’s the final Grand Prix of the year, the Abu Dhabi Grand Prix from the Yas Marina Circuit.

Here’s the TV times and game plan for the weekend across NBCSN, CNBC and NBC Sports Live Extra:

NBC Sports Group presents the season finale of the 2015 Formula One season this weekend with live coverage of the Abu Dhabi Grand Prix – F1’s only twilight race – from Yas Marina Circuit this Sunday at 7:30 a.m. ET on NBCSN.

NBC Sports Group is on pace to deliver its most-watched Formula One season to date, with just Sunday’s season finale in Abu Dhabi remaining on the schedule. Through 18 races, NBC Sports Group’s F1 coverage has averaged 533,000 viewers, up 17% vs. the same point of the 2014 F1 season. Last week, NBCSN delivered the most-watched live cable telecast of the Brazilian Grand Prix since 2010, averaging 493,000 viewers.

Lead F1 announcer Leigh Diffey will call the Abu Dhabi Grand Prix, and will be joined by veteran analyst and former racecar driver David Hobbs, and analyst and former race mechanic for the Benetton F1 team Steve Matchett. F1 insider Will Buxton will serve as the team’s on-site reporter from Yas Marina Circuit in Abu Dhabi in the United Arab Emirates.

Nico Rosberg (Mercedes) is looking to close out the 2015 campaign with a third consecutive victory, following wins in Mexico and Brazil. Rosberg has also earned the pole position in five consecutive races. Mercedes teammate Lewis Hamilton clinched his second consecutive Drivers’ Championship with a victory at the United States Grand Prix in October. Ferrari’s Sebastian Vettel has won the race in Abu Dhabi three times (2009, 2010 & 2013), followed by Hamilton’s two victories (2011 & 2014). The Abu Dhabi Grand Prix debuted in 2009 and holds the distinction as F1’s only twilight race, beginning in the sun of the afternoon and concluding after dusk under the lights.

Coverage of this weekend’s season finale in Abu Dhabi begins Friday at 4 a.m. ET on NBC Sports Live Extra with Practice 1, followed by NBCSN’s live coverage of Practice 2 at 8 a.m. ET. Live Extra will carry Practice 3 on Saturday at 5 a.m. ET, and CNBC will present live qualifying on Saturday at 8 a.m. ET.

NBCSN’s race day coverage begins Sunday at 7 a.m. ET with F1 Countdown, followed by NBCSN’s live presentation of the Abu Dhabi Grand Prix at 7:30 a.m. ET. F1 Extra will provide post-race analysis at 10 a.m. ET, and NBCSN will air an encore presentation of the Abu Dhabi Grand Prix on Sunday at 4:30 p.m. ET. NBCSN will also air coverage of the GP2 race in Abu Dhabion Sunday at 10 p.m. ET, with Alex Jacques calling the action.

Motorsports Coverage This Week on NBCSN, CNBC & NBC Sports Live Extra (subject to change):

Date Program Time (ET) Network
Fri., November 27 F1 Abu Dhabi Grand Prix – Practice 1 4 a.m. Live Extra
Off The Grid – Talladega (Encore) 7 a.m. NBCSN
Off The Grid – Austin (Encore) 7:30 a.m. NBCSN
F1 Abu Dhabi Grand Prix – Practice 2 8 a.m. NBCSN
“1” – F1 Documentary 9:30 a.m. NBCSN
Sat., November 28 F1 Abu Dhabi Grand Prix – Practice 2 (Encore) 1:30 a.m. NBCSN
F1 Abu Dhabi Grand Prix – Practice 3 5 a.m. Live Extra
F1 Abu Dhabi Grand Prix – Qualifying 8 a.m. CNBC
F1 Abu Dhabi Grand Prix – Qualifying (Encore) 12:30 p.m. NBCSN
Sun., November 29 F1 Countdown 7 a.m. NBCSN
F1 Abu Dhabi Grand Prix 7:30 a.m. NBCSN
F1 Extra 10 a.m. NBCSN
F1 Abu Dhabi Grand Prix (Encore) 4:30 p.m. NBCSN
GP2 – Abu Dhabi 10 p.m. NBCSN