jono Posted May 1, 2015 Share Posted May 1, 2015 http://www.ptrlabs.com/xt6/syoukaku-home/FLAT6-turbo01.htm may have been posted in here somewhere else the title in link may be a bum steer as we see pics of what look like EA turbo pistons in a flat six - ER27 ? but is deffo a flat four EA in first pics Link to comment Share on other sites More sharing options...
Caboobaroo Posted May 2, 2015 Share Posted May 2, 2015 Looks about right. I would say that the pistons in the EA are JDM EJ25D pistons from how deep the valve reliefs are cut. That is a ER27 as well, and turbo pistons. Link to comment Share on other sites More sharing options...
skishop69 Posted May 3, 2015 Share Posted May 3, 2015 Any idea what the gain would be? You get 9.5:1 with the EA82 SPFI pistons. Link to comment Share on other sites More sharing options...
jono Posted May 4, 2015 Author Share Posted May 4, 2015 builder may have been using EJ stufffor later being better design and strength. I think it was high comp turbed EA82 and had problems . Link to comment Share on other sites More sharing options...
skishop69 Posted May 4, 2015 Share Posted May 4, 2015 I figured better design and obviously easier to get. I was just curious as to what the comp ratio is. Link to comment Share on other sites More sharing options...
jono Posted May 4, 2015 Author Share Posted May 4, 2015 think I saw 9.5 Link to comment Share on other sites More sharing options...
skishop69 Posted May 5, 2015 Share Posted May 5, 2015 Ok, so the same ratio with better pistons. So was this a direct fir or were modifications required? Link to comment Share on other sites More sharing options...
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