[ST] RE: Shim Design Differences

["Masiak, Richard" <Richard_Masiak@xxxxxxxxxxxxxxxx>]

To the best of my limited understanding, under-bucket offers higher engine RPM's.  I presume higher RPM gives higher engine performance?

Those three cylinder MotoGP engines redline upwards of 16-17K RPM's, but they use pneumatic valves instead of spring.

Rich

-----Original Message-----
From: st-triumphnet.com-bounces@xxxxxxxxxxxxxxxxxxxx
[mailto:st-triumphnet.com-bounces@xxxxxxxxxxxxxxxxxxxx]On Behalf Of
Adrian Mansell
Sent: Monday, April 25, 2005 2:35 PM
To: ST@xxxxxxxxxxxxxx
Subject: RE: [ST] Valve Shim Replacement - Another Perspective
[was:Crankstorycontinues...]



Can anyone explain to me why shim-under-bucket is better than shim-over-bucket?

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