Welcome to Ultimate Subaru Message Board, my lurker friend!
|Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.
We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!
Serving the Subaru Community since May 18th, 1998!
EA82 head porting?
Posted 15 January 2010 - 11:40 PM
Here is a link (the only one I could find) I found...
Would probably be quite nice on a set that weren't cracked, certainly some good gains to be had in the exhaust 'bowl'
Posted 16 January 2010 - 12:08 AM
Posted 17 January 2010 - 12:44 AM
Posted 17 January 2010 - 12:45 AM
Posted 17 January 2010 - 12:50 AM
Posted 21 January 2010 - 10:22 AM
Unless extensive flow and combustion event testing has shown this to be a myth, I would start by making those chambers smooth. (And I am pretty sure Sir Harry Ricardo liked smooth combustion chambers. Good enough for me.) No chance of making holes in the wrong place, either.
Posted 21 January 2010 - 12:08 PM
Here's some thoughts about that.
By doing so you're less likely to have deposits stick and cause pre-detonation, spark knock and so forth.
You take out any sharp edges that lead to the above, detonation. When they get hotter than the surrounding material.
You can equalize the combustion chamber for a more balanced, smoother running engine.
Posted 21 January 2010 - 04:57 PM
Yeah, that'd be good, but I really want to see the above mentioned cut heads, and combine that information with mine....
Its taken me a very long time but Ive have found some of those pics.
I can only find a few of the cut away ER27 and etc heads.
Posted 22 January 2010 - 10:38 AM
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users