Excel Engineering

Established in 2002

Excel Engineering does diesel engine testing on a dynamometer, emissions testing, and builds turbos. Our facilities are capable of in house engine removal.  Excel also has a fabricating area for producing the necessary requirements for individual projects.  The 3-axis CNC mill is used to produce these prototype parts.

Doug Sobotka graduated from Diagonal High School.  He continued his education with 2 years at DMACC and transferred to Iowa State University where he completed his degree in Engineering. 

In 1993 Doug began his work with Cummins in Columbus Indiana, where he worked for 9 years in combustion performance and emissions. 

In June of 2002 Doug and his family returned to Diagonal and construction began on the home of Excel Engineering. In October 2002 the construction was done and the real work began.