#pdrbuilt

@pdrperformance ... Coming along... #500monster #pdrbuilt #500af #tenkommotorsports

Only 2 days to go for MN SX!! @zackwilliams170 has a beast to hold onto this weekend after some testing today. @racetechinc ported #pdrbuilt race motor is ready to rock! 👌✊ #thescienceofpower #pdrperfection @tenkom_motorsports @checkerz448 @zackehmke @ryan_slepi213 #tenkommotorsports (at U.S. Bank Stadium)

Check out @pdrperformance this weekend at the Minneapolis Motorcycle show! They would enjoy hearing about your bike and how they can make it awesome for you! Stop in and say hello, tell them Tenkom sent you! 👍 #pdrperformance #pdrbuilt #tenkommotorsports

@pdrperformance flowing the race head for @zackwilliams170. The amount of tools, fixtures and variables that need to be built and controlled to do this properly is unbelievable. @racetechinc has an engine R&D process that will rival any tuner in the world. Best part is it's available to everyone and full spec sheets are included on every aspect of your build from flow, air speed, valve height, run out ect. Real numbers, Real gains, real power. No black magic here. This YZ head increased CFM by 10 cubic feet per minute while increasing air speed by 5 feet per second. This should result in over a 3hp gain without loosing any bottom! Valve run out was reduced to .001" or less with no change in valve height. #thescienceofpower #pdrbuilt #pdrperformance #tenkommotorsports #supercross #sxonfox