nncoolg Posted January 16, 2010 Share Posted January 16, 2010 After disecting the spare set of heads ( link ), I am about to embark on the porting adventure, just wondering if anyone would like to share their handiwork... 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' Quote Link to comment Share on other sites More sharing options...
nncoolg Posted January 16, 2010 Author Share Posted January 16, 2010 reserved for my result pics... Quote Link to comment Share on other sites More sharing options...
Jerry DeMoss Posted January 16, 2010 Share Posted January 16, 2010 The only advise I can really give you on your ea82t heads is to be careful and not take too much material away from the ports as the head castings are rather thin compared to other subaru's. The best thing you could do is to match the heads to the gaskets and take only as much away as needed and blend the port to the gasket matched portion. Good luck:) Quote Link to comment Share on other sites More sharing options...
AWD TURBO! Posted January 16, 2010 Share Posted January 16, 2010 well i know ware not to grind now good picks Quote Link to comment Share on other sites More sharing options...
nncoolg Posted January 16, 2010 Author Share Posted January 16, 2010 I just found thread that sounds very interesting, does anyone happen to have a copy of the pictures? http://subaruxt.com/forum/viewtopic.php?f=1&t=7121&p=66398&hilit=+xt6+porting#p66398 Quote Link to comment Share on other sites More sharing options...
kiwi subbie Posted January 17, 2010 Share Posted January 17, 2010 I just found thread that sounds very interesting, does anyone happen to have a copy of the pictures? http://subaruxt.com/forum/viewtopic.php?f=1&t=7121&p=66398&hilit=+xt6+porting#p66398 Im pretty sure I saved the pics for that. just would have to sort out thru 10,000 or more pics Quote Link to comment Share on other sites More sharing options...
nncoolg Posted January 17, 2010 Author Share Posted January 17, 2010 sweet, would you mind having a look, and putting them up here? Im sure they would prove useful, maybe someone could sticky them? - you can sticky mine too if you like. Quote Link to comment Share on other sites More sharing options...
kiwi subbie Posted January 17, 2010 Share Posted January 17, 2010 I mite even be able to find the ported and polished Heads for my Old RX EA82 motor I take some pics if you like some? They are well n truely shot tho. Quote Link to comment Share on other sites More sharing options...
nncoolg Posted January 17, 2010 Author Share Posted January 17, 2010 Yeah, that'd be good, but I really want to see the above mentioned cut heads, and combine that information with mine.... Quote Link to comment Share on other sites More sharing options...
nncoolg Posted January 20, 2010 Author Share Posted January 20, 2010 bump Quote Link to comment Share on other sites More sharing options...
robm Posted January 21, 2010 Share Posted January 21, 2010 The last Japanese car I pulled the head off was a Datsun 510. The combustion chambers were polished mirror smooth, compared to those. It was bone stock from the factory. The Subaru ones look more like Chevy heads. I am shocked at the drop in standards over the years. Polishing combustion chambers was where a port and polish job started with the Chevies. 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. Quote Link to comment Share on other sites More sharing options...
Quidam Posted January 21, 2010 Share Posted January 21, 2010 " I would start by making those chambers smooth." 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. Doug Quote Link to comment Share on other sites More sharing options...
kiwi subbie Posted January 21, 2010 Share Posted January 21, 2010 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. Quote Link to comment Share on other sites More sharing options...
nncoolg Posted January 22, 2010 Author Share Posted January 22, 2010 nice man, now do you have the photos of yours? Quote Link to comment Share on other sites More sharing options...
Txakura Posted January 22, 2010 Share Posted January 22, 2010 Good lord, how long does it take to hack saw through a head? Quote Link to comment Share on other sites More sharing options...
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