• Home
• Contact Us
• Products
• Online Store
• Engineering
• TunerWire Live
• Cars

search:

DJ Engineering Wings Designed By Simon McBeath - Serious Downforce For Serious Racecars

A DJ Racecars rear wing being tested in the MIRA full size wind tunnel on the Paragon Porsche 997 ALMS GT2. Image credit: S. McBeath / sm-aerotechniques

In the world of circuit racing, tarmac rallies, hillclimbing, track days and time attack racing, serious cars demand serious downforce.

After a huge amount of aero research and development with our racing customers' cars, one of our racing customers came to us with a challenge ... "we need more downforce".

So we set about finding a way to provide more downforce - and to do it without generating excessive drag.

The result of that mission to find more downforce is the new range of wings designed by Simon McBeath and manufactured by DJ Engineering ... a range of wind tunnel tested, extremely high quality, pre-preg carbon fibre, no compromise high downforce rear wings.

For cars looking for maximum aero efficiency DJ also manufactures a range of high efficiency rear wings designed by Simon McBeath, along with a range of front wings (info on all the wings is below).

With prices starting at just UK£995 ex-factory for a DJ wing, not only can top level teams get international GT racing aero technology onto their cars extremely affordably, but also the range of DJ wings is also very affordable for weekend racers, privateers and track day competitors.

Quick Overview Summary Of DJ Engineering Wings

• Wind tunnel tested on real racecars in the MIRA Full Scale Wind Tunnel


• Large number of championship wins across multiple racing categories


• Used by a huge range of very successful teams including Lotus Motorsport, Prodrive, RLR MSport, Juno and Matech


• Manufactured in the UK from genuine pre-preg carbon fibre


• Designed by world renowned aerodynamics designer and aerodynamics writer Simon McBeath


• Efficiency and downforce data is available and published on this page


• Front wings and rear wings available


• Multiple element configurations available


• Custom configured to suit your car's individual power numbers and the type of racing you do


• Can be shipped worldwide


• Priced from £995

Wind Tunnel Tested In The Full Scale MIRA Wind Tunnel

A DJ Firestorm open wheeler with DJ Racecars front wing and rear wing being tested in the MIRA Full Scale Wind Tunnel. Image credit: S. McBeath / sm-aerotechniques

Unlike some wings on the market, DJ Engineering wings have been subjected to full scale testing on real racecars in the MIRA Full Scale Wind Tunnel, Europe's benchmark facility.

DJ Engineering rear wings are designed by aerodynamics designer and writer Simon McBeath. Simon writes the aerodynamics articles for Racecar Engineering Magazine (including the hugely successful Aerobytes series) and is the author of 3 classic motorsport books including "Competition Car Aerodynamics" and "Competition Car Composites".

Simon also has many many hours logged in the MIRA full scale wind tunnel and consults to a number of winning teams all over the world.

A DJ rear wing being wind tunnel tested on the RLR Msport Ligier in the MIRA Full Scale Wind Tunnel

DJ Engineering rear wings are available in a range of configurations so that your wing can be custom configured to suit the horsepower and usage of your car. Manufactured in the UK from Formula One spec pre-preg carbon fibre, DJ Engineering rear wings are extremely high quality aerofoils and wings.

They are suitable for use in all motorsport categories, and can provide the serious downforce you need to take your car to the next level.

A DJ Racecars rear wing being tested in the MIRA full size wind tunnel on the Paragon Porsche 997 ALMS GT2. Image credit: S. McBeath / sm-aerotechniques

More info on the MIRA Full Scale Wind Tunnel where the testing of the DJ wings is done can be found here ...

http://www.mira.co.uk/Facilities/Facilities_Full_Scale_Aerodynamic_Wind_Tunnel.htm

Who uses DJ Engineering Wings ? Championship Winners Do.

When your wings work this well, they find their way onto some of the most successful cars on the planet.

DJ Engineering wings have been successfully used on a wide range of championship winning cars.

DJ Engineering wing customers include:

• Lotus Motorsport (the Lotus factory motorsport department) with their Exige GT3
• Lotus Cars track spec 2-11 (again the Lotus factory)
• Prodrive (US based Prodrive Aston Martins)
• Paragon Porsche 997 American Le Mans Series GT2
• Matech (Ford GT FIA GT Racecar. Matech were the FIA GT3 Champions in 2008 and FIA GT3 Championship Runners Up in 2009)
• RLR Msport Ligier JS49 LMP3
• Riley Technologies MkXXII
• Arrows A4 Historic F1 car, run by G-Cat Racing
• Juno (DJ wings are standard fitment on all Juno's)
• Mark Berry's Australian time attack Yokohama Advan / Hi Octane R34 GT-R

DJ Engineering Rear Wing on the Matech Ford GT FIA GT1 Racecar. Matech were the FIA GT3 Champions in 2008 and FIA GT3 Championship Runners Up in 2009. Image credit: Matech Concepts

The Matech Ford GT FIA GT1 Racecar runs a DJ rear wing. Matech were the FIA GT3 Champions in 2008 and FIA GT3 Championship Runners Up in 2009.

Championship winning Lotus GT3 Exige running a DJ Racecars single element 183 rear wing

In its debut season in the British GT3 championship the Lotus Sport prepared Exige run by Team Cadena (Lotus), secured outright team championship honours running a single element DJ 183 profile wing.

The DJ rear wing on the RLR Msport Ligier. Image credit SpeedRacingUK

The RLR Msport Ligier JS49 LMP3 is very well known to LMP3 fans. The car runs a DJ Stage 2 High Efficiency Rear Wing.

DJ Racecars DJ 183 dual element wing fitted to the prototype Lotus 2-11 circuit car

When Lotus were developing the prototype Lotus 2-11, they turned to a DJ Stage Two High Efficiency rear wing, shown above on the prototype.

The Stig in Top Gear's Britcar 24 hour at Silverstone BMW. The car was driven by Jeremy Clarkson, James May, Richard Hammond and The Stig. Image credit: S. McBeath / sm-aerotechniques

When the BBC Top Gear team (Clarkson, Hammond, May & The Stig) went 24hr racing at Silverstone, Simon McBeath and DJ Engineering were their first port of call when they needed a wing for their bio-diesel powered 330 BMW.

Top Gear's Jeremy Clarkson and The Stig with the DJ rear wing on Top Gear's Britcar 24 hour at Silverstone BMW. Image credit: S. McBeath / sm-aerotechniques

Top Gear featured their race at the Britcar 24 in the BMW in an epic episode of the TV show.

Mark Berry's Australian time attack Yokohama Advan / Hi Octane R34 GT-R runs a DJ Engineering wing, which was added to the car in the leadup to the 2011 World Time Attack Challenge (WTAC).

After finishing 7th in 2010, the car then returned to Eastern Creek International Raceway for the 2011 World Time Attack Challenge with a new aero package including a DJ Engineering rear wing, and ran a 1 minute 31.905 second lap ... a full 2.2 seconds faster than the previous year and fast enough to take 6th place.

In an interview with Mark Berry about the lap time improvement, Mark said ...

---

"The car is 80 kg (176 lbs) heavier than last year, and has less power ...

All the speed in the car this year was from aero."

---

The Precis Spark Ascari GT3 at Silverstone in early 2010, running a DJ Engineering rear wing. Image credit: S. McBeath / sm-aerotechniques

The Jones Brothers' Precis Spark Ascari GT3 also runs a DJ rear wing. The team won the 2009 Avon Tyres British GT Championship in their Ascari.

The supercharged DJ Firehawk campaigned by Wallace Menzies won the 2007 Scottish Sprint Top 10 Championship and finished runner up in the 2007 Scottish Hill Climb Championship.

The Juno SSC-CN running a dual element 183 profile rear wing and driven by Rob Croyden won the 2007 European VdeV championship with second place going to Adrian Mardlin also driving a Juno.

The Juno SS3-V6 equipped with a dual element 183 profile rear wing and driven by Mike Roberts won the 2006 Britsports championship.

In SCCA competition, DJ wings have an outstanding record of success and championship wins ...

Fred Zust won the X Prepared class of the SCCA Solo National Championships for the third year in succession in his highly developed Lotus Elise (photo courtesy: Larry Burrow)

Fred Zust won the X Prepared class of the SCCA Solo National Championships for the third year in succession in his highly developed Lotus Elise.

Clemens Burger on his way to a second successive B Mod class win in the 2010 SCCA Solo 2 Nationals (Photo courtesy: Rupert Berrington Action Photography)

In the B Mod class, Clemens Burger had a second successive win in the 2010 SCCA Solo 2 Nationals.

Dan Wasdahl took the A Mod class win for the third year in succession (Photo courtesy: Rupert Berrington Action Photography)

In the A Mod class, Dan Wasdahl took the win for the third year in succession.

In addition to these high profile customers, DJ have supplied wings to a wide and diverse range of customers running cars such as a Nissan Skyline drag racer, BMW sports saloon, SCCA Solo autocross competitors (from single seat specials, D-Sports racers and lightly tuned Elise’s), rally cars and Ultima kit cars to name but a few.

DJ Engineering wings:

• have the required engineering, science and full scale wind tunnel testing behind them


• have a range of high profile / factory backed teams as wing customers like Lotus Motorsport, Prodrive, Matech, RLR Msport and Juno


• have a wide range of privateer wing customers across multiple categories of motorsport


• cars with DJ wings have a long and distinguished history of winning races and championships, which let's face it is what racing is all about.

What could you do in your local series or to your local track's records with a DJ Engineering wing ?

Simon McBeath - Designer of the DJ Engineering wing profiles

Simon McBeath is a highly accomplished wing designer, highly respected aerodynamics and racing author.

Simon brings many many years of practical experience and aerodynamics knowledge, and possesses that rare quality of being able to apply theory in a practical way very effectively to achieve real world results.

Simon's work can be seen on a wide range of winning cars, including the Mirage Engineering Arrows A6 (2006 & 2007 FIA Historic F1 World Champion), the World record holding "Project GTST" Nissan Skyline drag racer, Gary West's Lola Buick (2006 & 2008 Australian Hillclimb Champion), and many other winning cars.

Simon writes aerodynamics articles for Racecar Engineering Magazine, including the hugely successful 'Aerobytes' series that will be be very familiar to readers of the magazine.

He is also the author of 3 classic racing books published by world reknowned automotive publishers Haynes:

• Competition Car Aerodynamics
• Competition Car Composites
• Competition Car Data Logging

Click here to browse Simon's books at Amazon.com ...

http://www.amazon.com/Simon-McBeath/e/B001K85QY6/

The physics of how additional downforce can increase grip, which can lead to lower laptimes

Image Credit: Hydrargyrum - public domain image

If you have ever gotten a rear wheel drive car stuck in mud, you'll know that adding weight over the rear wheels can increase grip at the driven wheels and help you get you out.

In a similar way, additional downforce can be used to generate effective weight that can potentially increase tyre grip at the racetrack.

Simon McBeath explained in an article he wrote for a Racecar Engineering Magazine:

"Another way to evaluate how significant the aerodynamic forces are is to relate them to the vehicle's static weight.

In crude terms, the percentage of downforce over weight is the same as the extra grip obtained by virtue of that downforce at the speed at which the calculation was done."

So in other words, adding downforce adds effective weight to the contact patches where your tyres meet the track, (ie the weight your tyre's contact patches "see") thereby potentially creating additional tyre grip.

With more grip you can potentially corner at higher speeds and brake faster and later.

How much faster do you think you could get around a circuit with more grip created by more downforce ?

If you'd like to learn more about the physics of racecar aerodynamics, click here to read our article "An Introduction To Racecar Aerodynamics & How Aero Can Improve Your Laptimes", which was originally published on The Tuners Group's website and then republished in Fast Fours Magazine ...

http://www.tunersgroup.com/engineering/aero_intro.html

The Construction And Manufacturing Of DJ Engineering Carbon Fibre Wings

DJ pride themselves on manufacturing the highest quality carbon fibre wings possible.

DJ's wings are made from genuine pre-preg carbon fibre, the same kind of high end carbon fibre used in Formula One.

See our article here about the differences between different types of carbon fibre to learn why real pre-preg carbon fibre is the ultimate material for wings, why we never use the term "dry carbon" ...

http://www.tunersgroup.com/dry_carbon.html

DJ wings are precision built by hand with true craftsmanship ...

Hand layup of the pre-preg carbon fibre. As can be clearly seen above, the material used is genuine pre-preg carbon fibre, not a vacuum infusion or wet layup process. Image Credit: S.McBeath / sm-aerotechniques

As clearly seen above, DJ uses genuine pre-preg carbon fibre, not some kind of vacuum infusion resin technique. Just genuine real deal pre-preg.

DJ Wings are manufactured using Formula One quality pre-preg carbon fibre in mirror polished CNC'd billet high temperature aluminium molds. Shown above is a photo of a DJ wing in this cutting edge mold system. Click the image to enlarge

With DJ Racecars wings, the outer wing skins are laid up and cured as one piece in high pressure aluminium moulds.

Exceptionally stiff and lightweight carbon box spars (also made using high pressure tooling) and featuring integral aluminium hardpoints for the wing mounting brackets are then bonded in place.

Del, the owner of DJ Engineering is obsessive about quality, high quality raw materials and superior manufacturing techniques. He says of the DJ Wings ...

"We have been working in conjunction with Simon McBeath for over 10 years now, during which time he has designed a range of wing profiles that are manufactured exclusively by DJ Engineering.

The complex compound intersecting curves of this custom CNC'd billet aluminium mold manufactured by DJ Engineering is a great example of DJ's CNC capabilities

Once Simon has passed the profile to DJ we then design the internal stiffening sub assemblies as well as all of the external brackets that are required in order to mount the wing and provide the necessary adjustment.

We then machine all of the moulds in house, using our 3 axis cnc mill cutting straight from high grade billet aluminium.

Although expensive as a tooling material, aluminium moulds can be polished and if required re-polished to a very high gloss and are dimensionally very accurate with a very long life span.

All the wings are made from high quality pre-preg carbon fibre cured at high temperature and under high pressure using the billet aluminium moulds to produce a wing of exceptional stiffness yet minimal weight with a superb high gloss finish.

At DJ we supply many of the high profile manufactures and professional racing teams worldwide as well as the individual racers with our wings.

Our strong market advantage is that we conduct extensive aerodynamic testing of the profiles, from which we can supply aerodynamic data to the customer prior to purchase. This service along with our proven performance results and high quality product is why teams and racers use our wings."

The end result of DJ Engineering's superior materials, superior manufacturing techniques and obsessive attention to detail is wings that are lighter, stronger, stiffer, and safer.

The DJ Engineering Wing Models

A variety of wing configurations are available so that the best configuration for your car can be selected based on your car's horsepower and performance, and the types of racing your car will be doing.

3 main element profiles are available:

• the SM153 profile - a front wing ground effect profile


• the SM183 profile - a high efficiency rear wing profile


• the SM203 profile - a high downforce rear wing profile.

All can be used in conjunction with an SM101 flap / additional element which is available in chords between 120 and 170mm.

Multiple element wings can be configured of course.

All the profiles are designed by wing designer, aerodynamics advisor and regular contributor to Racecar Engineering Simon McBeath.

More profiles are currently in development, including an anhedral style front wing - these will be available in the future.

Front Wings

The DJ Engineering front wings are available in a number of configurations, depending on the requirements of your car.

The SM153 wing profile is is mainly employed as a main element for front wing assemblies for use on single seater cars, and can be fitted to any number of vehicles.

• DJ Engineering Front Stage 1 Wing - SM153 Single Element


• DJ Engineering Front Stage 2 Wing - SM153 Dual Element


• DJ Engineering Front Stage 3 Wing - SM153 Triple Element


• DJ Engineering Front Stage 3+ Wing - SM153 Multi Element

The maximum span length for the SM153 front wing profile is 1700 mm.

Rear Wings

The DJ Engineering rear wings are divided into 2 ranges - a high efficiency range and a high downforce range.

The high efficiency range are most suited to cars where medium to high downforce with high efficiency is required.

The high downforce range are best suited to categories where high downforce numbers are the main objective.

High Efficiency Rear Wing Range

DJ Racecars DJ 183 dual element wing fitted to the prototype Lotus 2-11 circuit car

The high efficiency range are most suited to cars where medium to high downforce with high efficiency is required.

The high efficiency rear wings use the SM183 wing profile.

The SM183 is an efficient and versatile profile. It has been successfully applied in a diverse range of applications from GT racing to track-day cars, and on the quad element rear wing assembly on the DJ hillclimb cars.

Available configurations are:

• DJ Engineering High Efficiency Stage 1 Rear Wing - SM183 Single Element


• DJ Engineering High Efficiency Stage 2 Rear Wing - SM183 Dual Element

The maximum span length for the SM183 High Efficiency wing profile is 1700 mm.

High Downforce Rear Wing Range

DJ Racecars High Downforce SM203 Dual Element Rear Wing

The high downforce range are best suited to categories where high downforce numbers are the main objective.

The high downforce rear wings use the SM203 wing profile.

The SM203 is a high downforce profile that is most suited to motorsport competition such as Hillclimbs, Sprints or Autocross, or for high power/high downforce vehicles where aerodynamic grip requirements are of increased importance such as time attack racing.

A number of our time attack customers are looking forward to running the SM203 profile wings at the 2011 World Time Attack Challenge.

Available configurations are:

• DJ Engineering High Downforce Stage 1 Rear Wing - SM203 Single Element


• DJ Engineering High Downforce Stage 2 Rear Wing - SM203 Dual Element


• DJ Engineering High Downforce Stage 3 Rear Wing - SM203 Triple Element


• DJ Engineering High Downforce Stage 3+ Rear Wing - SM203 Multiple Element (shown below)

The maximum span length for the SM203 High Downforce rear wing profile is 2100 mm.

Rear Wing CFD Testing Data ... Yes We're Happy To Publish The Test Data

CFD Analysis of a 5 element rear wing. Image credit: S. McBeath / sm-aerotechniques

Some wing manufacturers refuse to provide efficiency and downforce data for their wings.

Unlike some wing suppliers who refuse to provide efficiency and downforce data for their wings, below you can find downforce and efficiency charts for the SM183 High Efficiency and SM203 High Downforce single and dual element rear wings.

First up, here is a graph comparing the various DJ Engineering single and dual element rear wing profiles ...

Chart of downforce of the SM183 High Efficiency Wings and SM203 High Downforce Wings. Data from CFD testing by Simon McBeath

Note that in the chart above, each wing was tested with a span of 1.38 metres and a chord of 300 mm at 100 mph.

The SM203 High Downforce rear wing profile can be supplied in spans up to 2100 mm wide.

The approximate downforce for wider spans or narrower spans of these wing profiles can be calculated by using the following formula:

• (Desired span length in mm divided by 1380 mm) x stated downforce

For example if you want to calculate the approximate downforce of a High Downforce SM203 Dual Element at a span of 2100 mm, the calculation is:

• (2100 mm divided by 1380 mm) x 1502 Newtons = 2285 Newtons

2285 Newtons = approx 233 kg force = approx 513 lb force ... an incredible amount of downforce at just 100 mph.

You can convert Newtons to pound-force here ...

http://www.convertunits.com/from/newtons/to/pounds

You can convert Newtons to kilograms-force here ...

http://www.convertunits.com/from/newtons/to/kilograms

Rear Wing Downforce Charts

Image credit: S. McBeath / sm-aerotechniques Image credit: S. McBeath / sm-aerotechniques

Note in the downforce charts above:

• The SM203 High Downforce single element wing produced approximately 1054 N of downforce at 16 degrees when run as a single element wing.


• With the secondary element added to the SM203 High Downforce wing to run as a dual element wing, downforce at 16 degrees increased from 1054 N to 1426 N, which is a downforce increase of 35 % at 16 degrees angle of attack.


• Adding the second element to the SM203 single element wing allowed the SM203 Dual Element to run 20 degrees angle of attack, with the SM203 Dual Element Wing generating a massive 1502 Newtons of downforce at 20 degrees angle of attack.


• That is an increase in downforce of 448 Newtons or 42.5% when running a Dual Element SM203 wing at 20 degrees compared to running a single element SM203 at 16 degrees angle of attack.

Rear Wing Efficiency Charts

Image credit: S. McBeath / sm-aerotechniques Image credit: S. McBeath / sm-aerotechniques

Note in the CFD charts above:

• Run as a single element, the SM203 High Downforce Single Element Wing cost 16.3 BHP (peak) generating 1054 Newtons of downforce.


• Run as a dual element, the SM203 High Downforce Dual Element Wing maximum drag peaked at 21.1 BHP (peak), but generates 1502 Newtons of downforce

So in summary of the CFD data in the charts above ...

• For the SM203 wing, adding the second element costs less than 5 BHP in additional drag at 100 MPH, but generates 42.5% more downforce at that speed than the single element version of the wing.


• For many racers, less than 5 BHP in additional drag is a very small price to pay to get 42% more downforce.

Pricing

Each wing's specifications are tailor made to your individual requirements, with a range of mounting options for multi element design installations.

We are very happy to discuss your individual requirements on a one-to-one basis, and our vast experience allows us to advise to the most suitable option.

DJ wings can be shipped worldwide.

Please contact us to discuss your requirements.

The starting prices for each wing from DJ Engineering are as follows. Because the factory is located in the UK, all prices are quoted in UK Pounds Sterling and exclude shipping, local taxes and import duties in your delivery country.

You can convert prices from Pounds Sterling into other currencies here ...

http://www.xe.com/ucc/convert.cgi?Amount=1&From=GBP&To=USD

Front Wings

• DJ Engineering Front Stage 1 Wing - SM153 Single Element - from £995


• DJ Engineering Front Stage 2 Wing - SM153 Dual Element - from £1495

Rear Wings

• DJ Engineering High Efficiency Stage 1 Rear Wing - SM183 Single Element - from £995


• DJ Engineering High Efficiency Stage 2 Rear Wing - SM183 Dual Element - from £1495


• DJ Engineering High Downforce Stage 1 Rear Wing - SM203 Single Element - from £1095


• DJ Engineering High Downforce Stage 2 Rear Wing - SM203 Dual Element - from £1595

For more information, more detailed pricing, and any other questions, please contact us via our contact page here - DJ wings can be shipped worldwide ...

http://www.tunersgroup.com/Contact_Us/

About DJ Engineering Services Ltd — Manufacturer of DJ Racecars

Originally established in 1998 and since 2009 in it’s new venture as DJ Engineering Services Ltd, DJ is a leading name in the design and production of motorsport composite components, supplying a large range of competition use aerofoils, and custom aerodynamics solutions for all levels of motorsport, from sprint racing to Historic F1 and international level GT racing.

DJ is also a leading racecar constructor in British motorsport, offering the ultra lightweight DJ Racecars ‘Firehawk’ and ‘Firestorm’ single seaters that have record holding pedigree in the MSA British Sprint and MSA British Hillclimb Championships.

A highly specialised UK based manufacturer of the highest quality pre-preg carbon fibre aerofoils and wings, DJ Engineering wings are suitable for use in all motorsport categories.

created on 2011-01-27 07:54:21 by TTG