01-24-2011 08:04 PM
I am trying to figure out what the specs are on a turbo. The engine is a 3406 and it's on a generator. There's a plate on the turbo that has P/N 1674-1326 and AR.81 is stamped on it as well. I know that's not a lot of info for you guys to go on but it's about all I have. Any info is appreciated.
02-22-2011 08:19 AM - edited 02-22-2011 08:19 AM
A/R is not the "air ratio". A/R is the ratio of the inside diameter of the scroll(snail shell) versus the diameter of the turbine outlet. It is used to match the sizing of the compressor and turbine housings to the gas or airflow requirements of the engine.