Car The DeLorean DMC-12 will forever remain in history not only as an iconic symbol of pop culture, but also as an engineering curiosity of the late 1970s. Designed by John DeLorean, this sports car with gullwing doors and a brushed stainless steel body became a style icon, although its actual technical capabilities were often inferior to its external glitz. In this article we will analyze in detail technical specifications of DeLorean DMC-12to separate the myths from the harsh reality hidden behind the glossy pages of magazines of the time.
Many people mistakenly believe that behind the futuristic design lies racing power, but The DMC-12 was conceived more as a safe and durable car for everyday driving with premium claims. John DeLorean insisted on using advanced materials for the mass market, such as polyurethane in the suspension and stainless steel in the body kit, which significantly influenced the weight and dynamics of the car. Understanding these nuances is critical for any collector or enthusiast considering purchasing or restoring this piece.
Specification Analysis DeLorean reveals a complex picture of ambitious engineering constrained by budget and production realities. We'll look at every aspect of the design, from the powertrain to the aerodynamics, to give a complete picture of what this legendary car is capable of. A unique feature is that the body panels were not painted, but rather polished, as the steel was not galvanized, making each car visually unique depending on the polish.
Engine and Powerplant
With my heart The DeLorean DMC-12 is a 2.85 liter V-twin engine developed by the French company Peugeot-Renault-Volvo (PRV). This unit, known as "Zajeb" (Zylinder-Abgas-Jetzt), was created as a compromise between cost, weight and availability of spare parts in the event of bankruptcy of one of the partners. For the American market, the engine was equipped with a fuel injection system Bosch K-Jetronic, which provided stable but not outstanding performance.
Initially, engineers planned to install a more powerful engine, possibly with a turbocharger, but the company's financial difficulties and the short time frame for launching production used a naturally aspirated version. As a result, torque and power turned out to be insufficient for a car with such a mass. The engine is located at the rear, which provides near-ideal weight distribution, but the cooling system has often been criticized for being ineffective in hot climates.
When purchasing a DeLorean DMC-12, be sure to check the condition of the timing belt and tensioners - their breakage on a PRV engine can lead to valves meeting the pistons and costly major repairs.
The technical parameters of the power unit vary depending on the year of manufacture and the sales market (USA or Europe), but the basic architecture remains unchanged. Ignition system requires regular tuning, and fuel quality plays a critical role in the stability of the engine. Modern owners often resort to chip tuning or installing a throttle body from more modern models to improve response.
- 🚀 Engine type: V6, 90 degrees, aluminum block
- ⚙️ Volume: 2849 cubic meters cm (actual 2850 cm³)
- 🔥 Power system: Mechanical injection Bosch K-Jetronic
- 🌡️ Cooling: Liquid, with radiator in the front bumper
Dynamic Performance and Transmission
Acceleration dynamics The DeLorean DMC-12 often becomes the butt of jokes among car enthusiasts, and there are objective reasons for this. The combination of a relatively weak engine and significant body weight results in figures that today are considered modest even for family sedans. Acceleration to 100 km/h takes the standard version about 10.5 seconds, which in 1981 was acceptable, but not impressive for a sports car.
The transmission is represented by a 5-speed manual gearbox from Renault (model 1071) or, in rarer cases, a 3-speed automatic Hydra-Matic 325 from General Motors. A manual transmission is considered more reliable and preferred by enthusiasts as it allows better control of the engine's thrust. The automatic version, although it adds comfort, “strangles” the already weak engine even more, increasing the acceleration time.
The maximum speed is electronically and aerodynamically limited to 175-180 km/h. It is important to note that achieving these speeds requires the engine and exhaust system to be in perfect condition. Exhaust system Dual Exhaust, installed on later models, slightly improved cylinder ventilation, but did not radically change the situation.
⚠️ Attention: When operating at high speeds, the PRV engine cooling system is pushed to its limit. It is recommended to regularly check the level of antifreeze and the cleanliness of the radiator located in the nose of the car to avoid overheating and boiling.
Body, Materials and Aerodynamics
The most recognizable feature The DeLorean features a body made from 304 stainless steel. The 1 mm thick sheets were attached to a fiberglass backbone, creating a unique design. Stainless steel Does not rust in the traditional sense, but it is susceptible to stress corrosion cracking and requires proper polishing. The body was not painted at the factory, although some dealers later offered painting services upon customer request.
Gull-wing doors are not just a marketing ploy, but an engineering solution dictated by the structure of the spatial frame. Since the thresholds were high and were part of the power structure, it was impossible to make ordinary doors. The door mechanism includes a complex system torsion bars and gas stops, which lose their properties over time and require replacement or overhaul.
The car's aerodynamics, developed with the participation of Lotus Cars (under the direction of Colin Chapman), have a drag coefficient (Cd) of about 0.34. This was a good figure for the time, but the wedge shape created lift on the rear axle at high speeds. Rear spoiler, which appeared on some versions, helped stabilize the car a little, but did not completely solve the problem.
Why doesn't the DeLorean body rust?
Stainless steel contains chromium, which forms an oxide film on the surface that protects the metal from oxidation. However, if the surface is scratched or dirt left for a long time, stains may appear that are difficult to remove by polishing.
Chassis and Brake System
Chassis The DMC-12 is based on a central fiberglass monocoque frame developed by Lotus engineers. The front and rear suspension is independent, with double wishbones. The design made extensive use of parts from other GM vehicles, making it easier to find spare parts in the United States. Shock absorbers and the springs are selected for comfort rather than for a sporty ride, which makes the car quite rolly in corners.
The braking system consists of disc brakes on all four wheels. Early models used calipers Girling, which were often criticized for their tendency to sour and lack of effectiveness. Later they were replaced with more reliable analogues. Brake discs ventilated at the front and solid at the rear, which is standard for cars of this class.
The steering was rack and pinion, without power steering on the earliest prototypes, but power steering was installed on production models. This makes maneuvering in parking lots much easier, given the wide body. However, the lack of feedback on the steering wheel is often noted by pilots as a drawback that interferes with accurate track passing.
- 🛑 Front brakes: Ventilated disc
- 🛑 Rear brakes: Non-ventilated disc
- 🔧 Suspension: Independent, double wishbones, torsion bars
- 🎯 Ground clearance: 140 mm (quite high for a sports car)
Interior and Electronic Equipment
Salon DeLorean DMC-12 is made in a strict, functional style typical of the late 70s. The seats are upholstered in black leather (or vinyl on earlier versions), and the center console is made of matte plastic that imitates metal. Dashboard contains an analogue speedometer and tachometer, which are easy to read even in bright sunlight.
The electronic content of the car was advanced for its time, but today it evokes mixed feelings. The digital clock built into the panel became iconic, but its reliability left much to be desired. Audio system usually included a cassette recorder and four speakers, the sound of which was mediocre due to the acoustics of the metal-paneled interior.
☑️ Checking the condition of the DeLorean interior
The air conditioning system deserves special attention, which is simply necessary for a car with a large glass area and a steel body. However, the effectiveness of the standard "condea" was often criticized. Owners have to regularly maintain the system, change seals and refrigerant in order to maintain comfort in the cabin.
Comparison Table of Modifications
During production from 1981 to 1983 (and later during the assembly of the remainder in 1984-1985), changes were made to the design. Below is a table showing the evolution of technical characteristics between the main versions of the car.
| Parameter | Early 1981 (Series 1) | Late 1982-1983 (Series 2) | Turbo Kit (Factory Option) |
|---|---|---|---|
| Power (hp) | 130 hp @ 5500 rpm | 130-135 hp @ 5500 rpm | ~170-180 hp |
| Torque (Nm) | 235 Nm | 237 Nm | 285 Nm |
| Acceleration 0-100 km/h | 10.5 sec | 10.2 sec | 8.8 sec |
| Exhaust system | Single Exhaust | Dual Exhaust | Dual High-Flow |
| Wheels | Cast Aluminum | Mesh Style (optional) | Mesh Style |
The main difference between the later 1982-83 models is an improved exhaust system and updated electronics, which makes them more preferable for daily use.
Typical Problems and Features of Operation
Possession DeLorean DMC-12 requires not only financial investments, but also technical literacy. One of the main problems is corrosion of aluminum suspension parts and engine components, despite the steel body. Galvanic corrosion occurs when dissimilar metals come into contact, so owners should regularly lubricate the connections and monitor the condition of the electrical wiring.
The car's electrical system is built on old British Lucas components, which were notorious for their unreliability back in the 60s. Contact oxidation, relay malfunctions and problems with the generator are “classics” of the genre for DMC-12. Many owners completely rewire the wiring using modern materials and fuses.
⚠️ Attention: Do not attempt to high pressure wash a DeLorean engine. Water easily penetrates into the spark plug wells and onto the distributor, causing instant engine failure and insulation breakdowns. Use only gentle cleaning with rags and special cleaners.
However, the community of owners is huge and there is already a solution for every problem. There are specialized companies that produce improved versions of spare parts, from aluminum radiators to upgraded ignition systems. Engine life with proper care can exceed 300,000 km, which confirms the reliability of the basic PRV design.
Final Heritage Assessment
The DeLorean DMC-12 is a car that cannot be assessed only by dry performance figures. Its value lies in its uniqueness, history and emotions it gives. Technical shortcomings pale in comparison to the charisma of the car, which has become a symbol of an entire era and a cultural phenomenon. For a collector, this is an investment in art, and for an engineer, it is a fascinating study of material science and automotive design trade-offs.
If you're considering a purchase, weigh your maintenance options. This is not a car for the lazy, it requires attention and love. But in response DeLorean will give you a feeling of belonging to a legend that cannot be compared with any modern car. Steel, fiberglass and John DeLorean's dream live on on roads around the world.
Is it true that the DeLorean can fly?
Unfortunately, no. In Back to the Future, the car reached speeds of 88 mph and activated a Flux Capacitor, allowing it to travel through time and fly. In reality, no DMC-12 is equipped with a jet engine or anti-gravity modules. Attempts to install jet engines (like the turbocharged DeLorean) exist, but they are isolated enthusiast projects and are not certified for public roads.
How many DeLorean DMC-12s were produced?
The exact number of cars produced is often disputed, but factory records indicate that approximately 9,200 units were produced. Of these, approximately 6,500 were exported to the United States, which was the main market. The remaining cars were sold in Europe and Canada. Not all of them have survived to this day, so the number of surviving copies is estimated at 6000-6500 pieces worldwide.
Why do doors open upward?
The gullwing doors weren't just chosen for effect. John DeLorean wanted to create a safe car with a rigid structure. The high thresholds required for the strength of the roll cage made the installation of conventional doors impossible. Lotus engineers came up with a vertical opening solution that also saved parking space by allowing the doors to open even with neighbors parked nearby (although the ceiling height in the garage must be sufficient).