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Thread: RoadRazer

  1. #1
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    RoadRazer

    The RoadRazer’s design philosophy is "Form Follows Function". Authenticity is the key word. This driving machine is designed to give you the ultimate driving experience.

    Located just three inches from the ground, you will experience an authentic ’formula car’ experience, with acceleration, braking performance and cornering capabilities that are second to none.

    Sitting in the ’single-seater’ position the driver can experience the dynamics of the wishbone suspension and the in-board spring dampers whilst performance can be further enhanced by the adjustable suspension. The wheels are visible from this prime seating position, enabling you to have full control over the positioning of the RoadRazer on the track and on the road.

    The car’s unique design complements itself to achieving maximum down force whilst it thankfully lacks any unnecessary materials used for styling purposes only.


    Driving
    Think of the Roadrazer as an extension of yourself. A man-machine interface in the most extreme form.

    A serious sports car, the RoadRazer comes with the option of data acquisition for logging driving performances and later analysis of acceleration, breaking and cornering performance.

    Weighing just 666 lbs, the RoadRazer’s dry-sump converted Suzuki Hayabusa 1300cc engine pushes out approximately 175hp, achieving 62mph in just three-seconds. Featuring sleek carbon fibre chassis and bodywork, the RoadRazer promises to deliver stunning performance levels thanks to the car’s extremely low-weight, low centre of gravity and effective aerodynamics. Share the passion. Book a test drive.

    The RoadRazer is a car you "wear" so width and height of the driver’s seat can be customized.

    The RoadRazer is a car fulfilling one purpose only.... Extreme performance. The main criteria’s for realizing stunning performance has been low weight, low center of gravity and effective aerodynamics. Extensive use of carbon fiber (just like a formula 1 car) and lightweight metals has been the key to weight savings without sacrificing safety. With a dry weight of only 300 kg you will be sure to find acceleration, cornering capabilities and braking performance second to none.

    The RoadRazer is powered by a dry-sump converted Suzuki Hayabusa engine. The engine delivers app. 175 hp. A six speed sequential gearbox is activated by steering wheel mounted paddles. Use of the clutch is only needed on downshifts. In order to make sure that the power is effectively transmitted to the road a ’torque sensing’ differential is fitted. All wheels are 7" x 17" lightweight OZ superleggera (shoot peened for extra strength and weight saving). Tyres are Yokohama ADVAN 215/50-17.

    The central part of the RoadRazer is the monocoque. The monocoque is made from a sandwich of carbon/aluminium honeycomb/carbon. Galvanic isolation between carbon and aluminium is fitted to prevent corrosion. The monocoque delivers extreme torsional stiffness as well as a safety cell for driver and passenger. Replaceable nose cone, side pods as well as the engine cover will absorb energy during a crash. Roll over protection is fitted under the engine cover.

    The overall shape of the RoadRazer emphasizes on reliable negative lift, mainly generated by the shape of the side pods. The raised nose is not only implemented for aerodynamic reasons, the primary reason was to achieve ground clearance for better handling in real life situations like parking etc.

    In the RoadRazer you can share the driving experience with a passenger. The passenger is situated just behind the driver, with the legs on each side of the driver. The passenger seat is not as comfortable as the drivers seat. Who would want a passenger to stay for a long ride anyway....

    Brakes are generously dimensioned. In front 320 mm disks are combined with six-piston calipers. At the rear end 282 mm disks are fitted with two-piston calipers.

    In order to obtain the preferred driving position, the steering wheel can be adjusted in height. For depth adjustment spacers are needed. The Steering wheel can be detached for easier access as well as added anti-theft protection.

    When sitting in the drivers seat of the RoadRazer you will get an authentic formula car experience. You are seated just 3" above the ground tightly secured by a six-point 3" safety harness. The seat is a fixed part of the chassis. The small steering wheel will provide you with a real intense ’road-feeling’. All controls (used when driving and except pedals of course) are mounted on the steering wheel. A LED/LCD instrument cluster will provided information like revs, speed, acceleration, shift light etc..

    Technology
    The RoadRazer provides you with the experience of superb acceleration, breaking and cornering capabilities through the use of light weight technology.

    The sports car’s monocoque comprises a sandwich of carbon, aluminium honeycomb and carbon, delivering extreme torsional stiffness.

    The driver and the passenger, who sits directly behind the driver with legs straddled either side, are protected inside the monocoque with front and side protection by means of replaceable bodywork, whilst other safety features include a foam-filled safety fuel cell.

    Developed using state of the art technology, the RoadRazer also features a six-speed sequential gearbox, aluminium double-wishbones, a Quaife diff and push rod operated in-board adjustable dampers.

    The RoadRazer is made from composites, anodized aluminium and stainless steel, preventing any future corrosion.
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    Minimising losses can maximise net gains

  2. #2
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    Specification
    * CHASSIS
    o Carbon fibre monocoque
    o Carbon/aluminium honeycomb/carbon sandwich
    o Aluminium hard points
    o Chassis molded from prepreg
    o under vacuum and cured at high temperature
    o Two seats integral part of chassis
    o Monocoque part of wind licked surface

    * ENGINE
    o 1300 cc Hayabusa engine
    o Converted to dry sump
    o App. 180 HP

    * TRANSMISSION
    o 6 speed forward
    o Reverse
    o Torsen differential
    o Multi plate wet clutch
    o Semiautomatic gear change, buttons on steering wheel
    o Clutch only used on down shifts

    * SUSPENSION
    o Front and rear double wishbone (aluminium)
    o Front and rear uprights (aluminium)
    o Front: Pushrod over rocker to adjustable coil overdamper
    o Rear: Pull rod over rocker to adjustable coil over damper

    * WHEELS
    o Rims front and rear: 17 x 7 OZ super leggera
    o Tires front and rear: Yokohama Advan 215/50-17

    * STEERING
    o Rack and pinion
    o Steering wheel height adjustment
    o BRAKES
    o Front: 320 mm disks, 6 piston caliper
    o Rear: 282 mm disks, 2 piston caliper
    o Adjustable bias front/rear balance
    o Electro-mechanical hand brake

    * THERMAL MANAGEMENT, LUBRIFICATION
    o Air intakes on each side of monocoque
    o Radiator positioned in rear part
    o Dry-sump, 6 liter oil tank, oil cooler
    o Guided airflow for optimized aerodynamics

    * SAFETY
    o Driver and passenger protected inside monocoque
    o Front and side crash protection by means of replaceable bodywork
    o 3"safety harness
    o Steering wheel fitted with quick release hub
    o Roll over protection

    * INSTRUMENTATION
    o All primary buttons and paddles placed on steeringwheel
    o Digital instrumentation with LED RPM scale
    o Programmable shift light
    o Logging of max speed, acceleration, braking
    o Scrolling through menus by steering wheels mounted button

    * FUEL SYSTEM
    o 20 liter foam filled safety fuel cell centrally mounted

    * AERODYNAMICS
    o Moderate down force by means of ground effect

    * BODYWORK
    o Nosecone (integrated crash structure)
    o Side pods
    o Rear (engine cover)
    o Front cover
    o All parts made from carbon fiber

    * WEIGHT, DIMENSIONS
    o Target weight: 300 Kg [666 lbs] (dry, without driver/passenger)
    o Length: 342 cm [135 inches]
    o Width : 180 cm [71 inches]
    o Wheel base: 228 cm [90 inches]
    o Max height: 117 cm [46 inches]
    o Clearance: 7,5 cm [3 inches]

    * 300 kg
    * Road Legal (SVA in the UK)
    * 0-62 mph in 3 sec (0-100 km/t)
    * Carbon fibre monocoque
    * Carbon fibre replacable body parts
    * 2 seats
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    Minimising losses can maximise net gains

  3. #3
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    300kg is impressive indeed. The orange car doesn't look very good, but the black prototype (first pic in last post) looks good in its simplicity.
    Last edited by Ferrer; 01-22-2007 at 04:14 PM.
    Lack of charisma can be fatal.
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  4. #4
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    Sorry for the crappy pics, but they were the only ones available.

    After all, the car is not sold yet I believe, although you can book a test drive.

    More info at www.roadrazer.co.uk
    Minimising losses can maximise net gains

  5. #5
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    Thank you. I've been curious about this since I first heard of it( a couple months ago). Kind of ugly, but impressive from a tech. stand point.
    Go n-ithe an cat thu, is go n-ithe an diabhal an cat

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  6. #6
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    Quote Originally Posted by Ferrer
    300kg is impressive indeed. The orange car doesn't look very good, but the black prototype (first pic in last post) looks good in its simplicity.
    What ruins the shape of the final product is the shape of the roll bar/engine intake. It's too high, compared to the rest of the car. But, i guess that they had to make it that way, because of the crash regulations.

    A way to surpass that problem would be to elongate the rear part of the car (maybe place the engine in a longitudinal position. But that would make things really complex and expensive.
    Minimising losses can maximise net gains

  7. #7
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    Concerning the price of the car: "Mikkel Steen Pedersen hopes, that he will be able to present a road going production version already in the year 2007. For those who got interested in this totally unpractical, yet very interesting from the performance point of view, car, can start selling their brand new Porsche 911 Carrera 4 S Coupe, because when released it should carry a price tag of about 90 thousand US Dollars (about 70,7 thousand Euros)."

    From http://www.motorsblog.com/category/a...ers/roadrazer/

    Expected price on the RoadRazer is £49,000 or $92,500, which is almost twice the Atom's asking price. That would make it a slightly tougher sell, although that number is just a best guess by Pedersen at this point

    http://www.autoblog.com/2006/09/27/0...-in-the-works/
    Last edited by lightweight; 01-22-2007 at 04:31 PM.
    Minimising losses can maximise net gains

  8. #8
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    Its seems to be an expensive way to go as fast as an Atom, maybe the lighter weight will make it handle better?
    PPC - Put a V8 in it!

  9. #9
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    I understand the interest in this car due to its uniqueness, but it really is not very impressive (especially for the price). If you are buying a car for the track, you can get much more for much less. Its definitely neat to be able to drive it on road, but the price is very high.

    It also seems slow. There are many Formula SAE cars that can match that 0-60 time using a restricted 600cc with ~100hp less, albeit 150lbs less as well. Of course they're geared for acceleration but it still seems like the Razer could do better with a wider tyre. Also, FSAE cars are limited to a total retail value of $25,000USD. Given this there are still cars with carbon monocoques and many features more advanced (four way shocks, launch control, traction control, full data logging), superficially at least, than this car. Maybe this is an irrelevant comparison but I still think that the Razer could be quicker and cheaper.

  10. #10
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    Quote Originally Posted by lightweight
    What ruins the shape of the final product is the shape of the roll bar/engine intake. It's too high, compared to the rest of the car. But, i guess that they had to make it that way, because of the crash regulations.

    A way to surpass that problem would be to elongate the rear part of the car (maybe place the engine in a longitudinal position. But that would make things really complex and expensive.
    I think it's mainly the intake that makes it look so disproportioned. If it didn't have it, it wouldn't look so bad, but I suppose that engine performance would be restricted or there would be realiability problems. The could mount the air intakes laterally or as slats in the bodywork or the rollbar.
    Lack of charisma can be fatal.
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  11. #11
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    Quote Originally Posted by h00t_h00t
    Its seems to be an expensive way to go as fast as an Atom, maybe the lighter weight will make it handle better?
    I think that this car is capable of superior performance compared to the Atom. The Atom 2 weighs in at around 500 kg (anyone know exact figures?). The Atom slashes that figure by 40%.

    I guess that the torquey nature of the supercharged Honda engine would make it really difficult for the Ariel to follow the Roadrazer in twisty sections.

    Moreover, this car aims at a new segment (although it is a rather small one): Mid - priced Carbon fibre track toys. Caparo was the first one, but they targeted a much higher price range (almost double the money of a RoadRazer)
    Minimising losses can maximise net gains

  12. #12
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    It's a Radical without the bodywork
    I dont' find the styling very attractive and rather bland -- eg compare with Deronda
    "A woman without curves is like a road without bends, you might get to your destination quicker but the ride is boring as hell'

  13. #13
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    Let's play Run The Numbers!

    http://www.race-cars.com/carsales/ot...86053390ss.htm
    "A fine example of Benetton's B193B chassis, driven by Riccardo Patrese during the 1993 F1 season, to reasonable success, the car is a rolling chassis,
    currently finished in 1995 M.Schumacher livery (by Benetton). Available with large spares package, and original 93 Oz rims if car were to be changed back to original livery. Several contacts can be provided for the supply original Ford HB engines."
    £64,500

    A bit pricey, mayhap. How about this:

    http://www.race-cars.com/carsales/ot...53629989ss.htm

    "This complete and ready to race car is a ex Teo Fabi (Benettons first pole car) fitted with fresh Hart turbo engine. It is available with large spares package and pit equipment. This car won its first time out in a BOSS Masters Series race in June 2001.
    History
    The car has FIA Historic papers and all original parts drawings.

    Performance Data

    * Weight: 575 lbs

    Engine

    * Type: Hart
    * Displacement: 1.5L turbo
    * Total Time: approx 280 mls
    * Races: fresh

    Fuel System

    * Fuel Cell

    Oil/Water System

    * Radiator: water rads
    * Water Rad Location: side

    Electrical System

    * Ignition: 12V

    Transmission

    * Type: Benetton 6 speed + reverse

    Rear End

    * Type: Hewland in unit with gearbox

    Body

    * Construction: carbon fibre
    * Color: original Benetton colors

    Chassis

    * Type: carbon fibre monocoque
    * Front Suspension: pushrod
    * Rear Suspension: pullrod
    * Shocks: Koni double adj.
    * Brakes: 4 wheel disc* Steering: rack & pinion* Wheels: Speedline

    Interior* Restraints: safety harness* Guages: original components
    Spares* vast list of spares * pit equipment "
    Yours for only £52,500

    This is for a REAL FORMULA ONE CAR and something else. I haven't a clue what series it was built for.

    With real race cars priced at near the same price as these trackday specials, I can't imagine what you're paying for. Turn indicators, I suppose.

    Am I missing something?
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    I'm erudite ;-)

  14. #14
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    Very good point made there LandQuail, but one must take into account that the F1 car's mechanicals have to be rebuilt every once in a while, so the cost comparison is not fair based on the selling price.

    Of course I understand that, even with that in mind, the Road Razor is a bit expensive and will potentially suffer in the marketplace.

    If the constructor adds winds and sells "downforce" and "racing pedigree" to the customer, maybe the car will sell a bit more. After all it is a F1 look-alike..
    Minimising losses can maximise net gains

  15. #15
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    Those examples were a bit extreme. If I'd had more time to refine my point, I would have gotten around to the part where you buy a F1 rolling chassis, shove a Rover V8 into the bastard, jimmy-rig a tranny, fit it with racing brakes that don't cost as much as a modest home, slap a "never race on a full scrotum" sticker on the side-pods and unfurl the mission accomplished banner atop your garage, in the finest American style.

    Still, a nice Formula Ford or its ilk makes the case for spending $90k on a RoadRazzer awfully hard to defend.
    I'm erudite ;-)

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