We test the speed of the turbos on all gas and diesel engine dynamometer test stands. We record this speed with the data acquisition system. Typical is using a magnetic pickup as several above people suggested. This is typically used to pick up 2-PPR off the turbo. There aren't magnets on...
Neil;
We've had experience with both of those companies; (DyneSystems and Superflo). I found out that the low-end Superflo system looks better in their literature than in reality. It is hard to tune, the software is confusing and tech support when we had questions was VERY lacking. (Their...