Head Porting basics
Well, since the last picture, i got my port to flow 267 cfm, was vary happy! decided to do some final touch up work, like a little bit more smoothing of every thing and un- shrouding the 2.02 valve.
Got the combustion sharp edges remove, make my bore so could un- shroud the intake valve.............when two far and took out my seat:angry7:
what i thought was .006" was actually .015" before i had a 45* seat all the way around, again.
The cfm, that i was amaze to even have! Got flushed down the toilet.
Lost flow from .100-.500 lift. at .500 lost almost 30 cfm:angry7:
So I when after my head again, with the die grinder widened my ssr, remove a lot of metal from the prp wall(:angry7:) and laid back my ssr.
Well after some epoxy work to fill the hole, in the bottom there.
I have my 267cfm back..........but it's at .600 lift instead of .500 lift
From .100-.400 lift, I'm still behind in cfm............................
The hole you see there was easy to fix..........but it would have been, much easier, to have used my finger and thumb, to stop me! Before making the hole in the first place!
With winter coming, my days of grinding, and flow bench testing are numbered, and i pushed, when i should not have! Made mistakes!
Now i need to set back and evaluate this hole thing. Pretty sure i will be adding some "Zspar" Puddy to this port before I'm done.
Well, since the last picture, i got my port to flow 267 cfm, was vary happy! decided to do some final touch up work, like a little bit more smoothing of every thing and un- shrouding the 2.02 valve.
Got the combustion sharp edges remove, make my bore so could un- shroud the intake valve.............when two far and took out my seat:angry7:
what i thought was .006" was actually .015" before i had a 45* seat all the way around, again.
The cfm, that i was amaze to even have! Got flushed down the toilet.
Lost flow from .100-.500 lift. at .500 lost almost 30 cfm:angry7:
So I when after my head again, with the die grinder widened my ssr, remove a lot of metal from the prp wall(:angry7:) and laid back my ssr.
Well after some epoxy work to fill the hole, in the bottom there.
I have my 267cfm back..........but it's at .600 lift instead of .500 lift
From .100-.400 lift, I'm still behind in cfm............................
The hole you see there was easy to fix..........but it would have been, much easier, to have used my finger and thumb, to stop me! Before making the hole in the first place!
With winter coming, my days of grinding, and flow bench testing are numbered, and i pushed, when i should not have! Made mistakes!
Now i need to set back and evaluate this hole thing. Pretty sure i will be adding some "Zspar" Puddy to this port before I'm done.
