2_Liter_Turbo

Here is a picture of 4 of my 16 valve shims (well technically I have 8 shims and 8 guides, lol). These were the only ones that were worn down. Here's the kicker... the motor has 122 miles on it! Everything else looks bitchin and compression is perfect. Nothing else is bad in the motor. Any ideas on how this happened and how I can stay away from it happening again? Thinking of sending my cams out for WPC as well.

General Motor Specs that directly interface with shims:
S13 SR20DET
Tomei Solid Lifters
Tomei 260 Cams
WPC Treated Rocker Arms
Tomei/Nissan shims & Guides
Supertech Ti Spring Retainers
Supertech Dual Valve Springs

Complete motor specs can be found on 2_Liter_Turbo if you really want to know the rest.

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96 S14: Grip Track Car
90 R32: Bucket List Car
92 S13: Just for Fun Car
Instagram: @SS.Maxey