The front suspension is independent, lever-spring type MacPherson, with telescopic shock absorber struts, coil coil springs, lower wishbones and an anti-roll bar.
Figure: 1. Front suspension (left side):
1 - suspension arm bracket; 2 - shock absorber rack; 3 - steering fist; 4 - ball bearing; 5 - front suspension arm; 6 - front suspension subframe
The main element of the front suspension is a telescopic shock absorber strut 2 (Fig. 1), which combines the functions of a telescopic element of the guide mechanism and a damping element for vertical oscillations of the wheel relative to the body.
Figure: 2. Front suspension shock absorber:
1 - the upper support of the shock absorber; 2 - protective cover; 3 - spring; 4 - shock absorber
The following main parts are assembled on the shock absorber strut:
- coil spring 3 (Fig. 2)
- protective cover 2 racks;
- compression buffer (installed under protective cover 2);
- upper support 1.
The load is transferred to the vehicle body through the thrust bearing and the upper support. The shock absorber strut with its lower part is connected to the steering knuckle 3 (see. fig. 1) front suspension. The front suspension arm 5 is attached at the rear to the subframe 6 using a silent block and a bracket 1 with a rubber-metal hinge, and by the front part through a ball joint 4 it is connected to the lower part of the steering knuckle 3 of the front suspension. The subframe, in turn, is attached to the body side members.
The anti-roll bar with rubber bushings installed on it is connected to the subframe by two brackets, and to the front suspension strut - by stabilizer struts.
The front wheel hubs are mounted on double row angular contact ball bearings.
The angles of the lateral (camber) and longitudinal ("caster") inclination of the wheel steering axes are given constructively and are not regulated in operation, and the convergence of the front wheels is regulated by changing the length of the steering rods.
Opel Astra j GTC in a three-door body appeared in early 2011. The more powerful Opel Astra OPC was introduced in 2012. GTC and OPC cars are also sold in our country. The main distinguishing feature of these cars from the sedan, station wagon and hatchback Opel Astra is the presence of a more sporty design.
Powerful powertrains and a set of options that are not available in other versions of the Astra will delight any version of the GTC. Technically, the Opel Astra GTC is positioned as a three-door coupe with an advanced sports interior. The car has a modified suspension, of course, the ground clearance or clearance of the car is less than that of conventional Asters. Externally, the car has a number of features. The first thing that catches your eye is the huge wheels.
Opel Astra GTC exists in two versions: ENJOY and SPORT. The ENJOY package, which is considered basic, includes heated and electrically adjustable mirrors, power windows and front fog lights. Also, the car is equipped with side and front airbags for the person in the front seat and the driver, head restraints with adjustment in 2 positions, seat belts with a reminder. Cabin comfort is assured by an air conditioning with dust filter, heated front seats and front and rear reading lamps.
Useful options include crankcase protection, cruise control, stability control and more. The SPORT package additionally includes dual-zone climate control, an uphill start assist system, and rear parking sensors. Some additions relate to the interior - for example, a combined interior trim or lighting in the doors of the Opel Astra GTC car is added. The price of a car in the cabin starts from 700 thousand in the basic configuration and increases to about 900 thousand in the SPORT configuration with a 2-liter diesel turbo engine. Installing a package of additional options, such as front parking sensors or black aluminum wheels, etc., can raise the cost of the car by 5-200 thousand, depending on the selected additions.
Specifications
Now in more detail about the technical characteristics and test drive "Astra J GTC". The front suspension of this car came from the powerful Insignia OPC (HiPerStrut), and the rear (redesigned) - from the "regular Astra" with a twisting beam and Watt mechanism. The new front struts here do not rotate with the wheel, this made it possible to level the friction of the suspension elements and improve the contact of the wheel with the road surface. In addition, they have a phenomenal safety margin, as they are designed to work with the Insignia OPC engine (power of which is 325 hp). In addition, the new front struts made it possible to install larger diameter brake discs, as a result of which it became possible to install R17-R20 wheels. The characteristics of the rear suspension have also been changed. But Opel's engineers did not stop there either.
The electric power steering has undergone deep readjustments, the result is the adequacy of the steering with responsive feedback. The three-door is distinguished by good handling and predictable behavior in various road conditions, we can safely say - a cut above its “five-door relative”. This "sporty pseudo-coupe from Opel" allows you to take turns at high speed, the rear suspension pushes the car into a corner. The driver-car communication (via the steering wheel) tends to be absolute - the engineers have managed to significantly raise the bar for handling in this class. Body roll is minimal, the car quickly returns to its original straight-line motion. Also, this modification has a bonus in the form of the adaptive chassis FlexRide, the sport mode of which is activated automatically during aggressive piloting. In general, we can say that in the case of the GTC modification, there is an amazing situation: the capabilities of the chassis and brakes exceed the capabilities of the motors that are installed in the car today. This hints that more powerful units may appear over time.
Dimensions, weight, volumes, ground clearance Opel Astra 3-door hatchback GTC
- Length - 4466 mm
- Width - 1840 mm
- Height - 1486 mm
- Curb weight - from 1408 kg
- Full weight - from 1840 kg
- Wheelbase, distance between front and rear axle - 2695 mm
- Front and rear wheel track - 1587 mm
- Trunk volume - 380 liters, with the seats folded down 1165 liters.
- Fuel tank volume - 56 liters
- Ground clearance Opel Astra hatchback GTC - 145 mm
- Tire size - 225/55 R 17, 235/55 R 17
- Tire size - 235/50 R 18, 245/45 R 18
- Tire size - 235/45 R 19, 245/40 R 19
- Tire size - 245/40 R 20, 245/35 R 20
Engine parameters GTC 1.8 petrol
- Working volume - 1796 cm3
- Power - 140 HP at 6300 rpm
- Torque - 175 Nm at 3800 rpm
- Maximum speed - 200 (MKPP5) kilometers per hour
- Acceleration to the first hundred - 10.4 (manual transmission5) seconds
- Combined fuel consumption - 6.8 (manual transmission5) liters
Features GTC Turbo 1.4 petrol
- Working volume - 1364 cm3
- Power - 140 HP at 6000 rpm
- Torque - 200 Nm at 4900 rpm
- Maximum speed - 200 (MKPP6) 100 (AKPP6) kilometers per hour
- Acceleration to the first hundred - 9.9 (MKPP6) 10.3 (AKPP6) seconds
- Combined fuel consumption - 6.2 (manual transmission6) 6.8 (automatic transmission6) liters
Features GTC Turbo 1.6 liter petrol
- Working volume - 1598 cm3
- Power - 170 HP at 4250 rpm
- Torque - 280 Nm at 4250 rpm
- Maximum speed - 210 (automatic transmission6) kilometers per hour
- Acceleration to the first hundred - 9.2 (automatic transmission6) seconds
- Combined fuel consumption - 6.7 (automatic transmission6) liters
Characteristics of the diesel Opel Astra GTC 2.0 DTJ
- Working volume - 1956 cm3
- Power - 130 HP at 4000 rpm
- Torque - 300 Nm at 2500 rpm
- Maximum speed - 196 (automatic transmission6) kilometers per hour
- Acceleration to the first hundred - 10.5 (automatic transmission6) seconds
- Combined fuel consumption - 5.7 (automatic transmission6) liters
Features Opel Astra OPC 2.0 turbo petrol
Prices and configurations of the Opel Astra GTC and OPC
Opel Astra GTC prices do not differ in democracy, which is not surprising for a car of this class. The most affordable basic enjoy Opel Astra GTC equipment has a price of 769 900... For this money, the buyer gets 17 inch steel wheels, air conditioning, power windows, side and front airbags, ABS, ESP, cruise control, heated front seats, sports suspension, CD400 stereo system and much more. As a power unit, a naturally aspirated 1.8-liter petrol engine (140 hp) or a 1.4-liter turbo engine (140 hp). A 5-speed manual transmission is combined with an aspirated 6-speed automatic with a turbo engine.
Next sport equipment costs from 860 900 rubles. This version will delight you with climate control, 18-inch alloy wheels, parking sensors. This configuration has a large selection of power units, including the manufacturer offers a diesel engine.
Top version Opel Astra OPC has a single engine and gearbox. For the price of 1,278,000 rubles you get a 2-liter turbo engine with 280 hp. plus a 6-speed manual transmission. As standard wheels, 20-inch alloy wheels. Special body kit outside and sports interior inside. For the front seats there are special OPC buckets. They offer to pay 55 thousand rubles for the leather interior. There are also a number of packages with options, for which you will also have to pay extra. Further, all relevant prices and configurations for Opel Astra in a 3-door body.
Opel Astra GTC - reviews
The sports car pleases its owners with an elegant appearance, beautiful, lean forms. The car easily and quickly accelerates, briskly starts. At high speeds, it feels like there is a power reserve. Opel Astra GTC easily starts from half a turn even in severe frosts. The brakes are responsive and informative. The car is very stable, confidently takes turns in 90 degrees without a roll even at a speed of 60 km / h. With a kind word, the owners mention the quality of interior trim and plastic, a convenient control panel, in which everything is at hand.
You can give a sporty appearance, significantly improve the running and technical characteristics of your Opel by tuning the Astra J. We always have in stock at low prices various parts necessary for tuning and styling your car. Smooth curves of a modern body kit will make your car body much more attractive. Stylish design will favorably distinguish your car on the streets of the city, and will make people delightfully hold their eyes on it.
The presented Opel Astra J tuning parts are:
- High quality;
- German production;
- Favorable prices;
- Delivery to a convenient address for you;
A large and varied selection of spare parts allows you to upgrade:
- The style of your car;
- Suspension elements;
- Install understated springs;
- Replace front and rear bumpers;
- Various spoilers;
