Dragonfly Exterior Parts

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Spoiler Diffuser
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A body kit is often thought of as an enhancement in your cars appearance, but it is much more than in upgrade in style. You can actually increase the performance and handling of your ride as well as improving the aerodynamics of your cars body.

Underbody lift is an issue when driving at high speeds. The faster you drive the more air is forced under your cars body. This can cause you to lose control of your car, or give you poor handling performance. Just imagine turning on a fan that is pointed at a piece of paper on the table. Once the wind from that fan kicks on, it goes right under that piece of paper and lifts it right up off the table. This is what happens to your car.

You can redirect some of that wind over the top of your car with a body kit. By moving more of the air over the top of the car will create down force helping to press your car down toward the road giving you better traction, and decreasing your possibilities of losing control.

There are other components that can help with creating down force to different sides of the car. A wind splitter will help to put more down force on the front of the car. A Wind Splitters is a protruding flat surface in the front of a car that is designed to decrease front end lift and exert down force. Front bumper canards are also used to add down force at the front of the car. The added down force stabilizes the cars chassis during hard cornering and increases traction for faster lap times. An adjustable wing or spoiler will assist in the down force at the rear of the car. As the air passes over the top of the cars body it comes in contact with the wing pressing down creating better rear end traction. Some wings are adjustable so you can tune your traction by adjusting the angle of your wing.

Not all air can be redirected from under your car, but you can help the air that goes under your car move smoothly to reduce any sort of turbulence. A rear diffuser will help redirect and transition high speed air into low pressure in the rear. This will allow all of your other aerodynamic components to work at a greater capacity.

With all of these items on your car you will be sure to have the best handling ride with the best aerodynamics. Add a body kit, wind splitter, an adjustable wing, canards, and a rears diffuser to your car and you will be set.

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Vauxhall Corsa VXR

Vauxhall are on a roll. Not content with giving speed freaks the fastest Astra ever, they've only gone and given the same VXR treatment to the baby of the range - the Corsa. It's not hard to spot in a crowd either, with the Corsa VXR styling being bolder than a streaker at the Superbowl.

In a world where any fast hatchback is coveted by the Max Power generation, Vauxhall have saved everyone the trouble of pimping their ride with enormous aftermarket alloy wheels and air vents by putting all this on the standard car. The rear diffuser gives the car real racing looks and isn't just for show, as it ensures the car remains stable at high speeds. In fact the whole design has been born out of many hours in the wind tunnel as Vauxhall shaped and sculpted the VXR design - something clearly seen with the roof level spoiler.

Neat features abound from every angle. The aforementioned rear diffuser is striking, but the inverted triangular exhaust that is embedded within is a masterstroke. As are the wing mirrors which continue the triangle theme with a large chunk cut out from each. The front end manages to combine aggressive looks with the cheeky charm of the standard Corsa range by subtly altering the front bumper to house a sportier front grill and fog lights.

17 inch alloy wheels are standard although a wise investment of £400 on the options list will see them grow to 18 inch monsters. The interior takes delivery of the latest Recaro racing seats that aren't just immensely comfortable, but are designed to allow for side airbags to remain and the chunky steering wheel acts as a timely reminder that you're driving a serious performance car.

So to the performance. A throaty engine note greets you as you turn the key, the Corsa VXR housing a 1.6 litre turbocharged unit that develops 189bhp. 0 - 60mph is achieved in a mere 6.8 seconds with the turbo kicking in from the low revs to minimise the dreaded turbo lag. Overboost ensures the power keeps coming once your foot is welded to the floor meaning that the VXR never feels slow or is scrabbling around for power.

Despite all this oomph, the Corsa VXR remains refined and less frenetic than some of its rivals. Motorway driving is a doddle, but it's the twisty stuff the car longs for and it doesn't disappoint when it gets out into the countryside. The car clearly shows that it's been part of Vauxhall's latest design and development plan from the start. The car rides lower than the standard models and has a 25% stiffer rear axle which combines to make the car really fun to drive. The chassis is fully involved throughout as is the stability control which ensures all the power goes onto the tarmac. If you want to be brave and turn it off you can, however not only will you go everywhere slower, you'll be best mates with the local tyre fitter as you'll constantly send the wheels spinning uselessly with all the power going up in tyre smoke.

Variable power assisted steering may not be to the keenest drivers' taste as you don't quite feel every nuance of the road surface but you really would have to be wearing a fetching anorak to let this spoil your fun. One aspect that was a tad annoying was the clunky gearbox, not particularly helped by the oversized gear stick but this makes as much difference to my liking of the Corsa VXR as a broken cup holder on a Boeing 747.

Now to the very best bit. With the price of fuel being hiked every time I blink, cars like this are in danger of being priced out of the market. Yet despite the 189bhp, the turbo, the polished pedals that scream "stamp on me!" and the stability control working overtime, the car returns...wait for it...35.8mpg! Not only are running costs going to be low then, but buying the car in the first place won't require you to sell your arms to medical science. The UK price is £15,595 which undercuts its rivals, most notably the Ford Fiesta ST, Renault Clio 197 and Honda Civic Type R.

A trawl through the options list (including those must have alloy wheels) can hike the price up, but with so much kit as standard, you'll be hard pressed to find anything that is a must have once you've ticked for the new wheels. If you were to sell the car in the future, expect good residuals too as limited numbers will be available each year - only 2,500 in the UK for example.

Right I'm off for my daily stare at that exhaust.

About the Author

Tom London is an automotive journalist based in the UK. He is currently working with the Vauxhall dealer Now Vauxhall promoting the
Vauxhall VXR Corsa VXR.

is adding a front splitter, rear diffuser, or trunk spoiler really helpfull for road racing my vehicle?

Yes, no... or really just a solid maybe! It depends on the car and the specific aero aids. Any of the elements you mention are aimed to improve grip, and if properly designed and implemented, that is exactly what they will do.

When you look at the difference between a factory produced race version and it's street version, you find all of the above items added... aero parts that have been carefully designed by engineers, and then refined through many hours of wind tunnel testing and refined with further real world tests and the feedback of highly skilled professional drivers. These parts undoubtably work and do a great job at channelling the air.

At the other end of the spectrum you have cheaply produced parts that were quickly drawn up based off what will "look fast." These parts are not tested in wind tunnels, nor tuned or checked for real world performance. While it is possible some may provide a very small gain, many of these elements at best do nothing, and often make things worse (I've seen plenty of examples of spoilers that actually create lift).

In between the two, you have many such items that can be effective when used correctly and setup correclty... most rear wings for example - this is an aero element that extends into the turbulent air flow, and as such is not as sensitive as elements that work on the laminar layer (to put it in terms of fluid dynamics). The wing will allow for tuning that will trade increased drag for more downforce. If you have the rest of the car sorted and set up correctly, and make the right setup here, it will greatly improve the car... if you get that wrong, you are just making it slower.

And lastly, if you are doing this for road racing, make sure you are familar with what the rules allow or you may be adding something that will jump you into a class where you stand no chance of being competitive.

Open-Air Motoring - Abarth Style
SLOUGH, UNITED KINGDOM – July 19, 2010: The new Abarth 500C, which has just gone on sale in the UK, allows drivers to combine unrivalled small car performance with the thrill of wind-in-the-hair motoring in one stylish and well-equipped package.

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