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Porting and Pipe Question
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[QUOTE="Rich Rohrich, post: 1168838, member: 16241"] The reason you can't see "evidence" of the porting is due to the fact that the porting is done BEFORE the replating of the cylinder after it is bored to the new oversize. The plating covers the machine marks left by the porting tools. The nickel content in the Nicom plating process is high enough to make it very difficult to port the cylinder after the plating process. You would have to measure the port area before and after the porting process to determine the changes that were made. Epoxy is used in the transfer port windows in the cylinder to alter their volume and direction. [/QUOTE]
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MX, SX & Off-Road Discussions
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Porting and Pipe Question
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