Joe Gibbs Racing
PT-200 in use in Winston Cup engine program since team formation, including Winston Cup Championship year for Bobby Labonte.

Hendrick Motorsports (Randy Dorton)
PT-200 used in Winston Cup engine program since 1993, including Winston Cup Championships for Jeff Gordon and Terry Labonte.

Dale Earnhardt Inc.
PT-200 in use in Winston Cup engine programs for Dale Earnhardt Jr., Steve Park and Michael Waltrip.

Warren Johnson, NHRA Pro Stock Champion
PT-200 in use for engine R+D and setup since 1993. PT-700 used for between round spring checks.

Team Menard
PT-200 valve spring tester used in Indy Car engine program since 1993, and PT-500 chassis spring tester used since 1994, including engines and chassis which set all time Indy lap speed records and earned Indy Pole Positions.

Treadway Racing
PT-500 chassis spring tester used in Indy Car program since 1996, including Indy Pole winning efforts.

Richard Childress Racing
Uses multiple PT-200 and PT-500 systems in engine programs for Dale Earnhardt and Mike Skinner.

Robert Yates Racing
PT-200 in use in Winston Cup engine programs for Dale Jarrett and Kenny Irwin.

Petty Engineering, Petty Engineering 2
Multiple PT-200's in use in Winston Cup engine programs for Bobby Hamilton and Kyle Petty.

Roush Racing
PT-700 in use in Winston Cup engine program since 1998.

Sabco Racing
PT-200 in use in Winston Cup engine program since 1995.

Bahari Racing
PT-200 in use in Winston Cup engine program since 1996.

Jasper Engines
PT-200 and PT-700 in use in Winston Cup engine program since 1996.

Pro Motor Engineering
PT-200 in use in Winston Cup engine programs since 1995.

Katech
PT-200 in use in IRL, Winston Cup and Busch engine programs since 1995.

Barnes and Reese
PT-200 in use since 1995, including NASCAR Busch championship winning engine programs.

Automotive Specialists (Keith Dorton, noted engine builder and technical writer for Circle Track Magazine)
PT-200 in use since 1995.

Richard Maskin (Dart Machinery)
Multiple PT-200's in use in NHRA Pro Stock engine program and R+D since 1996.

Steve Schmidt (Top NHRA Pro Stock engine builder)
PT-200 in use since 1995.

Competition Cams
PT-200 in use in R+D and testing since 1994.

Isky Cams
PT-200 in use in R+D and testing since 1995.

Lunati Cams
PT-200 in use in R+D and testing since 1996.

K-Motion
PT-200 in use in R+D and testing since 1996.

and many more ...

To talk about adding your name to this list, call 1-800-778-6761.