sizemoremk
Registered User
Now that I got your head porting attention... LOL!!!
Ok I didn't really gasket match the exhaust ports, I know I know the exhasut ports should be just about left alone...
Anyways, I am taking my first stab at porting heads, and just want some feedback!
I did smooth out the bowl area and got rid of any sharp areas. And I did grind down the protruding valve guide into the exhast port.
I didn't try to enlarge the port or reshape it or anything, I just went around once with a "tootsie roll" to smooth it out. There was a "bump" along the side of the bowl, going into the port, so I smoothed it out a bit.
I was lucky on my exhasut ports, my seats don't protrude into the bowl, but I did have a sharp edge just above the top of the seats that I smoothed out.
I also unshrouded the valves, at somewheres around a 30 degree angle.
I am kinda concerned about getting the unshrouded area matched really well, and from the pictures, it looks like the cut on one combustion chamber is a little smaller than the others, so I will check that out again tomorrow, it could have just been the angle of the camera...
Next I will move onto port matching the intake ports to a felpro gasket, and do the same for the intake manifold along with following the
MN12performance guide for smoothing the little bumps in the intake manifold.
I am hoping to get some more pointers on the intake side, I imagine these are more difficult ot port, as I don't want to do anything that would adversely affect the swirling affect, especially anywhere around the injectors.
My understanding is that I don't necessarily want to "polish" the intake side, as this may affet the mixture... So what exactly do I want to do to the intake side????
I plan on trying to put together a home head porting guide, so let me know if I screwed anyting up, and it will be a learning experience or everyone. So any help will be appreciated.
Just as an indicator of how tedious this work is, this is probably about 6 hours or so of work thus far...
Well what do ya think?
Thank guys!!!
Ok I didn't really gasket match the exhaust ports, I know I know the exhasut ports should be just about left alone...
Anyways, I am taking my first stab at porting heads, and just want some feedback!
I did smooth out the bowl area and got rid of any sharp areas. And I did grind down the protruding valve guide into the exhast port.
I didn't try to enlarge the port or reshape it or anything, I just went around once with a "tootsie roll" to smooth it out. There was a "bump" along the side of the bowl, going into the port, so I smoothed it out a bit.
I was lucky on my exhasut ports, my seats don't protrude into the bowl, but I did have a sharp edge just above the top of the seats that I smoothed out.
I also unshrouded the valves, at somewheres around a 30 degree angle.
I am kinda concerned about getting the unshrouded area matched really well, and from the pictures, it looks like the cut on one combustion chamber is a little smaller than the others, so I will check that out again tomorrow, it could have just been the angle of the camera...
Next I will move onto port matching the intake ports to a felpro gasket, and do the same for the intake manifold along with following the
MN12performance guide for smoothing the little bumps in the intake manifold.
I am hoping to get some more pointers on the intake side, I imagine these are more difficult ot port, as I don't want to do anything that would adversely affect the swirling affect, especially anywhere around the injectors.
My understanding is that I don't necessarily want to "polish" the intake side, as this may affet the mixture... So what exactly do I want to do to the intake side????
I plan on trying to put together a home head porting guide, so let me know if I screwed anyting up, and it will be a learning experience or everyone. So any help will be appreciated.
Just as an indicator of how tedious this work is, this is probably about 6 hours or so of work thus far...
Well what do ya think?
Thank guys!!!
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