2006 ARIEL ATOM 2 Owners Manual

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PARKING BRAKE ADJUSTMENT


There are two adjustment points on your vehicle’s par king brake assembly, the parking brake actuator and th e
cable slack. Refer to the photos on the following page . To adjust the assembly:

1. Place chocks or blocks in front and in back of the fr ont wheels to prevent the car from rolling.
2. Place the parking brake handle in the forward-most position and put the car in neutral.
3. Jack up the rear of your Atom until the rear whee ls are clear of the ground.
4. Place safety stands under the car.
5. Ensure that the car is stable.
6. Make sure that there is a little slack in the cables where they exit their covers at the rear of the car near
the rear axle.
7. Take a 1/4 in. Allen wrench and turn the internal hex bolt in the center of the large end of the parking
brake application lever clockwise until the wheel cannot be turned by hand. (Track & Race package.)
8. Turn the Allen bolt counter-clockwise about 1/16 of a turn. At this point the parking brake is initialized
and the cables can be adjusted.
9. Loosen the locknut on the cable housings with a 9/16 in. wrench and screw the adjuster barrel counter-
clockwise until there is less than 1/2 in. of vertical sla ck in the cable.
10. Tighten the locknut while holding the cable housi ng stable with a 1/2 in. wrench.

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TIRE & WHEEL MAINTENANCE
NOTE: Due to a wide range of driving conditions and techni ques, tire maintenance will vary.
Ariel Atoms are equipped with ultra high performan ce, wet/dry (not all-season) tires. Tire sizes are:
Front 195/50R/15 or 205/50R15 Rear 225/45R16 or 225/45R16
Front tire pressures of 18 PSI, and rear tire pressu res of 20 PSI are the recommended tire pressures for
most applications. Minimum and maximum tire pressures ar e listed on the sidewall of the tires.
Drivers should inspect tires for proper pressure and tre ad wear before every track event. A wide range of
wear patterns are possible due to different driving co nditions.

If you are losing traction it may be time to change t he tires.
Suspension settings may affect tire wear patterns.
Grainy tread may indicate a suspension issue.
Tires may last up to 20,000 miles (32,000 km) under conservative driving conditions or as little as 300
miles (480 km) for track conditions.

The wheels should be re-torqued before every track eve nt. The lug nut torque is 80 ft-lbs.
Most Atoms have different size tires on the front an d the back, and cannot be rotated. If you car’s tires a re
the same size, rotate them every 500-1,000 miles (800- 1600 km). Dismount the tires from the wheels
before rotating them.

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WHEELS




Team Dynamic Team Dynamic Dymag
Pro Race 1.2 Pro Race 2.0
12-Spoke 5-Spoke “webbed ends” 5-Spoke Magnesium
15 x 7 +35mm offset 15 x 7 +35mm offset 15 x 7 +3 5mm offset
16 x 7 +38mm offset 16 x 7 +38mm offset 16 x 8 +3 8mm offset
Wheel nut type: M12 x 1.5mm Wheel nut type: M12 x 1 .5mm Wheel nut type: M12 x 1.5mm
Lug nut torque: 80 ft-lbs Lug nut torque: 80 ft-lb s Lug nut torque: 80 ft-lbs

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GM DRIVETRAINS
GM Ecotec 2.2 Liter DOHC with Sequential Fuel Injection
Naturally Aspirated Bore: 86.00mm
Stroke: 94.60 mm with 10:1 compression ratio
140 Horsepower and 150 ft-lbs of torque
GM Ecotec 2.0 Liter DOHC with Sequential Fuel Injection
Base Bore: 86.00 mm
Stroke: 86.00 mm with 9.5:1 compression ratio
205 Horsepower and 200 ft-lbs of torque GM Ecotec 2.0 Liter DOHC with Sequential Fuel Injection
Stage 1 Bore: 86.00 mm
Stroke: 86.00 mm with 9.5:1 compression ratio
230 Horsepower and 205 ft-lbs of torque GM Ecotec 2.0 Liter DOHC with Sequential Fuel Injection
Stage 2 Bore: 86.00 mm
Stroke: 86.00 mm with 9.5:1 compression ratio
245 Horsepower and 215 ft-lbs of torque GM Ecotec 2.0 Liter DOHC with Sequential Fuel Injection
Stage 3 Bore: 86.00 mm
Stroke: 86.00 mm with 9.5:1 compression ratio
300 Horsepower and 250 ft-lbs of torque

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GM DRIVETRAINS

The Ecotec 2.0L SC (Supercharged) is compact and lightw eight, and its Eaton M62 Supercharger adds 40
percent more power to the Ecotec 2.0L engine compared to a naturally aspirated version. The M62
supercharger utilizes a helical roots compressor and integr al pressure control, producing a maximum of 12-19
PSI of boost. The boosted intake flow exits into an all-new matched intake manifold with an integral air- to-
liquid heat exchange intake charge cooler system. A comp act single-track, six-rib belt supercharger drive
system utilizes a linear tensioning device to further st rengthen the already impressive system performance and
durability. A microprocessor manages the M62 supercharge r, fuel, direct spark delivery systems and the
engine’s 68-mm Electronic Throttle Control (ETC) system . ETC delivers outstanding throttle response,
improved reliability and better integration with cru ise control electronics for greater overall performance a nd
drivability.
The Ecotec 2.0L SC engine is built with a six-quart oi l sump and a crankshaft driven pump. A block-mounted
oil cooler, or optional remote cooler, is included to e nsure proper lubricant cooling that promotes long engi ne
life.
The 2.0L SC engine is built exclusively at the FGP (Fi at-GM Powertrain) engine facility in Kaiserslautern,
Germany. This plant uses a die-cast production techniqu e that yields a block that is well suited for high-stress
applications including turbocharging and supercharging.
Often referred to as the Global Four Cylinder, the starting point for the 2.0L SC is the Ecotec 2.2L (RPO L61).
This engine has leveraged GM Powertrain’s worldwide de sign and engineering capability by drawing on the
best practice of technical centers in North America and Eu rope. The Ecotec 2.2L created a template for
subsequent global powertrain development that laid th e groundwork for engines such as Powertrain’s new
Global 3.6: V6. Most important, the Ecotec 2.2L is a world-class gasoline engine with obvious benefits for the