Porting cylinder heads
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== PREAMBLE == | == PREAMBLE == | ||
| + | The purpose of this article is to acquaint engine builders on the tangible benefits of cylinder head porting and making more power through the porting process. Cylinder head porting or 'porting' as it is known in the hot rod circles, is classed by some as '''black magic''' in the engine building process. Proper porting procedures will result in getting the largest volume of air/fuel mix to the combustion chamber in the shortest amount of time. Porting works hand in hand with valve grinding and seat cutting. | ||
| − | + | ==Areas to look for== | |
| + | During the manufacturing and machining processes of a cylinder head, there are areas that are left unfinished. This is due to cost/time restraints imposed on the manufacturers, especially OEMs. | ||
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| + | When a port is machined for a seat, often a lip is left below the seat. This lip is sometimes semi-removed using a type of tapered reamer that helps smooth the transition from the seat into the pocket portion of the port. But because this is done quickly and by machine and not carefully and by hand, there is still almost always places where improvements can be made. | ||
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| + | [[File:EXH PORT.jpg|thumb|400px|left| Arrows indicate lip left after the machining process. This needs to me carefully removed so the transition from the seat to the pocket is smooth.]] <br style="clear:both"/> | ||
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