I got a better picture of my cylinder head port job I did on my 2.0 turbo. I found a way to make them turn out better using a light on the intake side. The exhaust side is mirror polished and it just wont turn out for anything! I basically ported about 3m all the way around and completely gasket-matched the intake side. I finished it semi-polished so it still helps a little in fuel atomization yet flows nicely.
Before picture:
After picture:
Let me know what you think!
I will mess around with a few other things and try to get the exhaust side pictures to turn out later today.
Cardomain|
Myspace
nice job! looks damn good
props to the poppa of my 2200 OHV =D make that sucker fly...
Phil, I'll do a head for you if you want. I'll hook you up good. If you really want a P+P head, just IM me.
Cardomain|
Myspace
hook me up too
I HAVE A HEAD IN MY BASEMENT IN NEED ..........
haha let me know... I want one bad.......
JDM Civic Hatch
Status: Parting Out Turbo Kit....
14.224 @ 102.01MPH @ 5.5psi.... 2.3 60'
Next: Civic JDM B16a2 w/GSR LSD Turbo - Goal 300whp 1400lbs...
^^^^If I get some time I will let yo know. Allow me to say though, I think what you should really look into would be shorter charge pipes! That would give you a lot more response.
Cardomain|
Myspace
Have you had it flow benched yet?
Being a daily driver that I am going to tune far bellow its actual potential, I have not flow benched the head. I just pressed my valve guides back in yesterday so I really haven't even had the chance to. All of the chambers are tightly sealed though with the valves closed. I tested that today. Also, all of the intake paths are equal volume down to the 0.5 ozs. I didn't feel it necessary to measure the volume of the exhaust ports partially because of the EGR. If you haven't seen the design of this head, EGR exhaust is actually taken from inside the head from cylinder two I believe. The other reason is that I didn't exactly port the exhaust side. For the most part I just deburred it and mirror-polished it.
I am also not a big believer in flow bench testing. I'm not saying it is a bad idea, but there are so many other factors in cylinder head work than just the amount of air they can flow. Think of it like this......... the more you port, the higher the numbers. In that sense, you could strap a trashcan with the bottom punched out to a flow bench and it would perform great!
Cylinder head performance has more to do with air speed, port cross-section, port volume and the shape and relationship between the size of the throat and the valve seat. I don't have the equipment or knowledge to fine-tune everything to that level, so I am happy for now with a mild port and polishing job that will produce results better than stock.
Flow bench testing is great, but I wouldn't souly rely on its numbers doing cylinder head work. Manifolds, intakes, turbos...... CFMs are king!
Cardomain|
Myspace
