PDA

View Full Version : where to get my head ported and polished

civichx
10-17-2006, 05:32 PM
i have a 96 civic hx just bought a y8 head i live in ohio wheres a good place to get my head done up at thanks and is a y5 block strong is it just a y7 block and bottom end? and how much power would i have with the enew y8 head on the y5 block an p28 chiped with out the head being done up thanks for the help
LennyP
10-18-2006, 01:30 AM
Exospeed, Alaniz, or Portflow are all very good.
" Low "
10-18-2006, 06:03 AM
do it yourself, there is a whole thread with links on how to do this....:TU:
Toddnos
10-18-2006, 06:20 AM
Exospeed, Alaniz, or Portflow are all very good.
...i got mine done at JG
ibby
10-18-2006, 07:05 AM
do it yourself, there is a whole thread with links on how to do this....:TU:

links please :mikej:
" Low "
10-18-2006, 07:24 AM
links please :mikej:

all i did was SEARCHED.... it was in the archives.....

http://www.d-series.org/forums/showthread.php?t=2376
ibby
10-18-2006, 07:35 AM
all i did was SEARCHED.... it was in the archives.....

http://www.d-series.org/forums/showthread.php?t=2376


My searching skills arnt that good.
but thanks for the link
Threads
10-18-2006, 08:18 AM
Headgames FTW!
" Low "
10-18-2006, 08:33 AM
My searching skills arnt that good.
but thanks for the link

cant type in : head, port......?

btw i am not TRYIN' to be an ass.... it is just we see these questions over and over again, it gets old for the members that have been here for a while.....:TU:
exospeedracing
10-19-2006, 12:19 AM
Sorry not the best pics I have at the moment, but here's some examples.

http://i24.photobucket.com/albums/c42/exospeedracing/D16VTECexhport1.jpg

http://i24.photobucket.com/albums/c42/exospeedracing/D16VTECsurface1.jpg
ibby
10-19-2006, 03:18 AM
cant type in : head, port......?

btw i am not TRYIN' to be an ass.... it is just we see these questions over and over again, it gets old for the members that have been here for a while.....:TU:

I just looked at the sticky posts, didnt find it.
Ill try harder next time :D
boostdeliquent
10-19-2006, 03:27 AM
Just DIY. I've done 3 heads now and it seems to work pretty well for the 30$ it cost me. Here's my DIY thread from when I did my H23 head.

http://www.agarumotorsports.com:8080/agaru/forums/showthread.php?p=529#post529
sql_civic
10-19-2006, 10:15 AM
X2. Diy Ftw! :)
firetech_96
10-19-2006, 12:23 PM
While porting your own heads is a relatively easy task granted you have a good feel for a series of grinding bits and stones, creating a port job that will actually give you the potential for greater flow numbers and most importantly velocity numbers is much more difficult. The number one reason to send your heads to a qualified machine shop is the experience. Chances are that you have a shop in your area that has ported Honda heads in the past. If you call them they should ask for several things before taking your head. These things include compression ratio, cam card (lift, duration, separation), and build type (NA, FI, NOS). I am luck to have one of the best known Honda machine shops in the country within a stones throw, this being ENDYN. I cannot say that they are the best, but I can tell you that there are tons of very good facilities out there for you to choose from. Here is an article that was done by ENDYN on a D16 VTEC head.

http://www.theoldone.com/articles/d16a%5Fhead/
rushi
10-19-2006, 12:47 PM
That Endyn article is excellent.

I ported my Z6 head mostly related to that article (but I also have my own knowledge and experience about heads/porting). Maybe the biggest differences were I enlarged(widened) the ports 1mm per side, and my valve configuration (stock with intake stems undercut 0.5mm and swirl-polished).

This gave me very good results. Head flows slightly better than stock B16A head (according to my flow chart and B16A numbers found from net, JG iirc). This should easily support over 200hp. With significantly smaller ports and valves than B16A, the flow velocity should be good too. It works excellenty in practice, have damn good torque at 2...4k and strong top end power + sharp throttle response.

My flow chart (http://personal.inet.fi/surf/rushi/z6flow.jpg)

Sorry, I know I've posted this multiple times here, but its also related to this topic and I think it might be informative for some ppl, and I hope it encourages you to port your head by yourself and learn something from it. IMO most important areas in these heads valve guide bosses, valve bowls and short turn radiuses, as well as valves(stems) itself. In my head there's only the factory 3-angle valve seat, which I radiused very slightly.
boostdeliquent
10-19-2006, 02:44 PM
Personally, I am partial to the DIY jobs. Though there are alot of porters that have tons of experience, they got that experience through trial and error. The DIY job I do may not be the best but I will learn from my mistakes and improve upon the next head I port. Each one from there on, is a continued learning process built upon the lessons of others.

Besides that, anyone can write a check, how many people are truley willing to do it themselves and learn, even if the cost is more than what paying someone else would have been. The people who are now the reputable head porters learned from trial and error and so shall I.