Is the OM617 a good engine?
The First 5-Cylinder Diesel Engine: OM617 (1974-1991) The OM617 was praised for its bulletproof reliability, often exceeding 500,000 miles with routine maintenance. Mercedes OM617 This engine is a straight 5 diesel, as you may already know, it is considered one of the most reliable engines ever made. It was common for one of these to reach over 1,000,000 miles without being rebuilt. As its regarded as both powerful and reliable, you can see why it’s a good choice for off-roading.The OM617 was praised for its bulletproof reliability, often exceeding 500,000 miles with routine maintenance. It gained immense popularity in models such as the W123 300D and W126 300SD, particularly in North America, where cars with diesel engines were very scarce.
How much HP does an intercooler add?
As a rule of thumb: you get 3 – 5 % more power per 10°C cooler charge air. If a large intercooler is installed in a standard vehicle, this quickly adds 15 – 20 hp. The effect is much greater with tuned engines, where a larger intercooler can quickly add over 25 hp. An intercooler is worth the little exta weight added as a good efficient intercooler can drop intake temps up to 100 degrees or more. The colder the air, the more boost can be run, the more power.