The turbocharged VW EA831 engine allowed the 924 Turbo to accelerate to 60 mph in a similar time to the early iterations of the bigger, more powerful Porsche 928, and 911 SC (), thanks in part to a lighter curb weight, but it also brought reliability problems as was often seen in other turbocharged cars of the era. This was mostly due to the fact that the general public did not know how to operate or care for such an early oil cooled turbo setup. Allowing the engine to idle and turbo to cool before shutdown helps prevent turbo seal and component failure and as such greatly extends the turbo's lifespan.
The turbocharged VW EA831 engine allowed the 924 Turbo to accelerate to 60 mph in a similar time to the early iterations of the bigger more powerful Porsche 928, and 911 SC (), thanks in part to a lighter curb weight, but it also brought reliability problems as was often seen in other turbocharged cars of the era. This was mostly due to the fact, that the general public did not know how to operate or care for such an early oil cooled turbo setup. Allowing the engine to idle and turbo to cool before shutdown helps prevent turbo seal and component failure and as such greatly extends the turbo's lifespan.