In January of 2001 I purchased a “full Set” of blanket covers from ATP for the: Oil pan, Valve cover, Exhaust manifold, Turbocharger, Downpipe, and Hood liner. I had done some serious research into what was available, and was tremendously impressed with the quality of the ATP products. The quality of their products is Aerospace / Military. In 2 ½ years of use, and over 50,000 miles, the ATP products on my truck are “like new” no problems or issues what so ever. These are expensive components, and they really work well. They did provide a very noticeable sound reduction.
At first, I was concerned about over-insulating the engine, and causing heat related problems with the oil etc. . I performed a thorough investigation into marine and stationary generator versions of our engines to understand if this would be an issue. The generator versions of our engines are the best comparison because they have a conventional “automotive” cooling system. They run continuous at rated power for 24/7, they can have far more insulation, and work with little or no airflow over the block. Cummins B powered generators are known for reliability and an excellent service life even in the most demanding applications.
I have since performed several more sound reduction steps on my truck. My wife and I really appreciate the lower sound levels in our truck. This is especially evident after a long day on the road, we feel much less fatigued.
Maybe our patron saint of noise reduction “Greg, the noise nazi” will chime in and share some of his wisdom. Greg was extremely helpful to me in understanding noise sources and noise control in our trucks.
Geoff