There were many areas in need of serious improvement when we introduced our 228000-mile '95 Golf Sport ... with the cam chip having a faster idle to compensate for the increased valve overlap ...

Most modern variable valve-timing (VVT) systems use a cam phaser that rotates the position of each cam­shaft relative to the timing chain. Think of making a record turntable go faster or slower ...

The goals for this test are to start with the stock sticks, change to the TFS Stage 1 cams (PN TFS-51802001), and then make one more step up to the larger valve-bumpers (PN TFS-51802002), which we ...