Re: JZX100 Multiple Problems
Posted: Thu Feb 02, 2017 4:54 pm
no, not the seat. The throat is the bit that surrounds the valve stem. If you looked into the exhaust port, it would be near the top of the port. If 250 kw will do you, then perhaps don't bother doing the throats. Any of the porting guys can do the throats, if you are keen to have a go, get them to do one or two for you, to show you, then copy.
BTW As a note , not every guy who can port heads is suitable to port your head. For example, an old school v8 guy is unlikely to get a good result for you with a head port. Need to find someone who is well versed in japanese multi valve heads, AND forced induction. Also bear in mind, most good porters have a back log of work, so unless you are prepared to wait, I wouldn't bother .
BTW As a note , not every guy who can port heads is suitable to port your head. For example, an old school v8 guy is unlikely to get a good result for you with a head port. Need to find someone who is well versed in japanese multi valve heads, AND forced induction. Also bear in mind, most good porters have a back log of work, so unless you are prepared to wait, I wouldn't bother .