MS RACING COMPONENTS formed in 2013 set out to develop a line of tools to allow easy piston to valve (PTV) clearance measurements on late model engines utilizing variable valve timing (VVT) technology.

With the increasing popularity of VVT technology upgrading to a high performance camshaft with increased duration/lift PTV clearance becomes an issue. PTV clearance can't be verified when the camshaft in the full retarded position since the VVT cam gear phaser is locked when there is no oil pressure.

The MS RACING COMPONENTS PATENT PENDING VVT UNLOCKER TM simply replaces the OEM VVT cam gear phaser valve bolt during camshaft degreeing and PVT clearance measurements. Shop compressor air is than used to unlock the VVT cam phaser making PTV clearance measurements possible.

MS RACING COMPONENTS currently offers a patent pending VVT cam phaser VVT UNLOCKER TM part number MSVVT-1 for the 2007-2013 LS GM Gen IV engines and available soon part number MSVVT-2 for the 2014-UP LT1/L83/L86 based GM Gen V engines using VVT technology.


For more information about MS RACING COMPONENTS products, visit www.msracingcomponents.com

Thank you for watching.

Mike