Why Is Porting Still Done By Hand?
Member
Joined: Sep 2005
Posts: 67
"Typically we would use the CNC to cut the ports the same as Mazda does, down
about 1/8" and then blend and polish by hand. We have not set this up for
bridge porting as of yet due to lack of time."
This would make the best sense of all by my guessing. One of the major factors on power increase due to porting is t he port shape. If this can be done with a CNC and the rest of the runners ported by hand you do not need to worry about the port shape, sliding way with your bit etc.
Cost will be the issue but then again.. I would consider it.
about 1/8" and then blend and polish by hand. We have not set this up for
bridge porting as of yet due to lack of time."
This would make the best sense of all by my guessing. One of the major factors on power increase due to porting is t he port shape. If this can be done with a CNC and the rest of the runners ported by hand you do not need to worry about the port shape, sliding way with your bit etc.
Cost will be the issue but then again.. I would consider it.
Member
Joined: Aug 2004
Posts: 44
Originally Posted by teknics' post='773133' date='Oct 27 2005, 03:18 AM
the little piece thats chipped off the bottom of the bridge.
kevin.
actually that isnt a chip, but im sure that was one of the first ones they made, and by the time 10 were done they would have the process corrected
Senior Member
Joined: Dec 2002
Posts: 4,837
From: Wayne, NJ
Originally Posted by G_RIDE' post='773557' date='Oct 28 2005, 02:57 PM
actually that isnt a chip, but im sure that was one of the first ones they made, and by the time 10 were done they would have the process corrected
its still something wrong.
kevin.
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Rotary Engine Building, Porting & Swaps
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