What is the minimum compression ratio of the saab svc variable compression ratio engine?
Unfortunately, this engine was never built in production, it was only a test unit. The concept was that Saab engineers could build a gas (petrol) engine that had the power of a gas engine but the gas mileage of a diesel engine. This was under development into the early 2000s but was dropped because the costs were getting out of control and with GM ownership at 100% they needed to make money (Saab has been losing money every year since 1989 except 1995). Here is what I have been able to get from GM sources: Saab Variable Compression engine Because cylinder bore diameter, piston stroke length and combustion chamber volume are almost always constant, the compression ratio for a given engine is almost always constant, until engine wear takes its toll. One exception is the experimental Saab Variable Compression engine (SVC). This engine, designed by Saab Automobile, uses a technique that dynamically alters the volume of the combustion chamber (Vc), which, via the above equation, changes the