Engine exchange
An engine interchange is the process of removing a car’s original engine and substituting it with another.
This is done either because of failure, or to install a different engine, or to usually one that is more modern and so more efficient, this may make it more powerful and or economical. Older engines may have a shortage of spare parts and so a modern replacement may be more lightly and cheaply maintained. Interchanging to a diesel engine for improved fuel economy is a long established practice, with modern high efficiency and torque diesel engines this does not necessarily mean a reduction in spectacle associated with older diesel engine exchanges. For the particular application of off-road vehicles the high torque at low speed of turbo diesels combined with good fuel economy makes these conversions particularly effective. Older non-electronic fuel injection diesels were well known for their reliability especially in raw conditions.
An engine interchange can either be to another engine intended to work in the car by the manufacturer, or one totally different. The former is much simpler than the latter. Fitting an engine into a car that was never intended to accept it may require much work and money; modifying the car to fit the engine, modifying the engine to fit the car, and building custom-built engine mounts and transmission bellhousing adaptors to interface them along with a custom-made built driveshaft. Some petite businesses build conversion kits for engine exchanges, such as the Fiat Twin cam into a Morris Minor or similar.
Exchanging the engine may have implications on the cars safety, spectacle, treating and reliability. The fresh engine may be lighter or stronger than the existing one which affects the amount of weight over the nearest axle and the overall weight of the car – this can adversely affect the car’s rail, treating and braking capability. Existing brakes, transmission and suspension components may be inadequate to treat the enhanced weight and/or power of the fresh engine with either upgrades being required or premature wear and failure being likely.
Insurance companies may charge more or even reject to insure a vehicle that has been fitted with a different engine to its initial configuration.
A common anecdote [ citation needed ] among tuners in the United States is that the easiest way to make a car swifter is to drop in a General Motors puny block engine as used in the Corvette. The Chevrolet Vega (and its Astre, Monza, and Skyhawk sisters) is a candidate for a puny block exchange; some have also seen big blocks, also. Chevrolet engines have been used in such cars as Toyota Supras, BMWs, RX-7s, Mazda Miatas, Jaguar sedans, Datsun 240s, 260s, and 280Zs, Corvairs, and others.
In the Honda world, engine interchanges include the Civic Si (B16A), The Civic Type R (B16B), Integra GSR(B18C), and the Integra Type R (B18C5) engines. More recently, interchanging larger displacement Honda engines (such as the J-series V6) has become more popular. Exchanging any of these motors into a lightweight 88-00 Honda Civic chassis can achieve greater spectacle. [ citation needed ]
Chrysler made many turbocharged vehicles in the 1980s, and these engines share much in common with the naturally aspirated ones. It is fairly common [ citation needed ] to obtain an engine from a vehicle such as a Dodge Daytona and interchange it into a Dodge Aries. The Mopar Spectacle arm even suggested a kit to upgrade the Dodge Daytona to rear wheel drive with a Mopar V8.
Engine interchanges are also somewhat common within the Volkswagen tuning scene, often placing Type two (Bus), Type Trio, and Type four (Squareback) engines in the Type one (Beetle). Water-cooled engines, such as the GTI 16-valve four, VR6, or 1.8 T are commonly interchanged into the Mark II GTI, Jetta, and Corrado. Less common is the interchange into a Mark one Golf or Cabriolet, providing an amazing power-to-weight ratio, even with minimally modified powerplants. Porsche engines are also very popular one of the most popular is to take the engine from a Porsche nine hundred eleven super 1600.
In jurisdictions such as California, with stringent, arbitrary smog rules, it may not be possible to register a late-model vehicle with an engine exchange, even if it can be proven to produce less pollution than the original engine (owing to “visual inspection” rules).
In the Super GT racing series, engine exchanges can be considered a way of life for the upper tier GT500 cars, most of which are provided with specially modified racing engines from the manufacturers. GT500 class rules themselves permit for any engine to be interchanged into a car as long as it is from the same manufacturer. Notable examples include Toyota exchanging in very tuned 4-cylinder engines originally from the Toyota Celica into their Toyota Supra GT500 race cars.
British sports cars (such as MGs and Triumphs) from the late 1960s and early 1970s were attractive light-weight cars that had excellent suspensions, but were known for troublesome electrical systems, hardly adequate power levels and unreliability. It is popular [ citation needed ] to take one of these classic sports cars and add a more powerful engine. The all-aluminum two hundred fifteen cu in (Trio,520 cc) Buick and Oldsmobile V8 engines are a traditional choice for these cars. Interchanging an MGB all-iron 1.8L 4-cylinder engine and 4-speed transmission for a Buick two hundred fifteen V8 and a modern 5-speed transmission actually improves both cornering and acceleration because it reduces the overall weight of the car by about forty lb (Legitimate kg). Power is approximately doubled; torque increases even more. Derivatives of that classic General Motors engine, the Three.5L, Trio.9L, and Four.2L Rover V8s are also frequently used. (The original Buick and Oldsmobile, the Rover, and the related Morgan-licensed V8, are bolt-ins. [1] ) Albeit more latest narrow sixty-degree Ford and GM V6 engines are more compact, they usually don’t equal the Rover engine’s power-to-weight ratio. They can, however, be very cost effective and an lighter fit, notably the Chevrolet Trio.4L. The cast metal block Ford three hundred two (Five.0L) V8 in particular results in spectacular power-to-weight ratios for straight-line acceleration. With aluminium goes, intake, and water pump fitted, the Ford three hundred two only adds about forty lb (Legitimate kg) to the front of an MGB, and is substantially more powerful and lighter weight than an MGC or TR6 iron-block six-cylinder. An aluminium three hundred two spectacle block is available that weighs sixty lb (27 kg) less than the common metal version, as is displacements of three hundred thirty one and three hundred forty seven ci, but they are significantly more expensive. The Nissan SR20DET is an all-aluminium fuel-injected DOHC turbocharged 4-cylinder. This compact engine, along with the very compact, light, and powerful Mazda 13B rotary engine, have both been transplanted into too many different cars to list.
Contents
Note: These are the most common examples and are not an exhaustive list, just a representative cross section.