Turbotech's Peter and John attended the Performance Racing Industry trade show held in Indianapolis in December 2017. There were 1400 exhibitors showing off a wide range of "racing products" The highlites were the big array of billet cylinder heads and blocks.A Cummins engine based diesel drag motor had no original parts. The whole engine was billet machined on 5 axis computer machines / lathes. developed around 3,000 horsepower had three turbochargers and no water cooling whatsover. It only runs for 5 seconds to make the 1/4 mile drag. It was eye opening to see how much in house developement and manufacture goes on in producing these race engines. A bus ride arounbd the brickyard race track (home of racing) was memorable.