cubastreet Posted June 22, 2014 Share Posted June 22, 2014 2 Quote Link to comment Share on other sites More sharing options...
BratRod Posted June 22, 2014 Share Posted June 22, 2014 Very nice! Reminds me of these http://www.flygas.info/en/index.html What are you building these for? Quote Link to comment Share on other sites More sharing options...
Crazyeights Posted June 22, 2014 Share Posted June 22, 2014 Looks great! More details please Quote Link to comment Share on other sites More sharing options...
cubastreet Posted June 22, 2014 Author Share Posted June 22, 2014 It's for my 81 Brumby, I'll add more as it progresses Quote Link to comment Share on other sites More sharing options...
Crazyeights Posted June 23, 2014 Share Posted June 23, 2014 MPFI EA81? I have been gathering parts for a similar "EA81T" build. I have two blocks going together now. Quote Link to comment Share on other sites More sharing options...
cubastreet Posted June 23, 2014 Author Share Posted June 23, 2014 (edited) Bike carbs. I got the second head welded up today and made a start on the manifold. I'll need to relocate the battery but other than that it should all fit in nicely. Edited June 23, 2014 by cubastreet 1 Quote Link to comment Share on other sites More sharing options...
1000 Pistes Posted June 27, 2014 Share Posted June 27, 2014 (edited) hello, You beleave that these modifification could be done on the EA 71,EA 61 and EA 63 heads,too? You are thinking to weld,on the heads, alloy tubes? The angle of the welded alloy tubes it is important for the easy change of the spark plugs Edited June 27, 2014 by 1000 Pistes Quote Link to comment Share on other sites More sharing options...
Willy Fisterbottom Posted June 27, 2014 Share Posted June 27, 2014 hello, You beleave that these modifification could be done on the EA 71,EA 61 and EA 63 heads,too? You are thinking to weld,on the heads, alloy tubes? The angle of the welded alloy tubes it is important for the easy change of the spark plugs This won't work on EA61 or EA63 as the inlet and exhaut valves are around the other way. Quote Link to comment Share on other sites More sharing options...
el_freddo Posted June 28, 2014 Share Posted June 28, 2014 I think it's time for more pics!Cheers Bennie 1 Quote Link to comment Share on other sites More sharing options...
Pooparu Posted June 30, 2014 Share Posted June 30, 2014 I've got these for my EA81: Quote Link to comment Share on other sites More sharing options...
el_freddo Posted June 30, 2014 Share Posted June 30, 2014 ^ The "elusive" dual port EA81s heads - you need a matching cam to run with these heads!CheersBennie 1 Quote Link to comment Share on other sites More sharing options...
Willy Fisterbottom Posted June 30, 2014 Share Posted June 30, 2014 ^ The "elusive" dual port EA81s heads - you need a matching cam to run with these heads! Cheers Bennie looks like he has a cam to match...... 1 Quote Link to comment Share on other sites More sharing options...
el_freddo Posted June 30, 2014 Share Posted June 30, 2014 looks like he has a cam to match...... Yep, but thought it worth while for the "sake" of others - they're not just a simple bolt on upgrade Cheers Bennie 1 Quote Link to comment Share on other sites More sharing options...
jono Posted July 1, 2014 Share Posted July 1, 2014 Gee willikers , look at how much been shaved off the head ! 1 Quote Link to comment Share on other sites More sharing options...
Crazyeights Posted July 2, 2014 Share Posted July 2, 2014 Not much base circle left on the cam lobe either. Nice stuff though, rare indeed! Quote Link to comment Share on other sites More sharing options...
cubastreet Posted July 3, 2014 Author Share Posted July 3, 2014 1 Quote Link to comment Share on other sites More sharing options...
Willy Fisterbottom Posted July 3, 2014 Share Posted July 3, 2014 Yep, but thought it worth while for the "sake" of others - they're not just a simple bolt on upgrade Cheers Bennie Pushrods are also a different length. Quote Link to comment Share on other sites More sharing options...
1000 Pistes Posted September 4, 2014 Share Posted September 4, 2014 Is this modifying possible to the EA71 heads???? Quote Link to comment Share on other sites More sharing options...
jono Posted September 5, 2014 Share Posted September 5, 2014 pics there above at #16 speak a few words, if you need more room to work with try the smaller hex plugs NGK's BCP6ES ? with the C being smaller hex that uses the slimmer 5/8" plug socket ? Quote Link to comment Share on other sites More sharing options...
1000 Pistes Posted September 6, 2014 Share Posted September 6, 2014 (edited) Is it possible to bolt, directly,the EA81 heads on the EA71 block???? I saw some picture with some EA81 engine with EFI(MPi) system(with 4 separate fuel injectors). Is it factory equipment of modified ???? Edited September 6, 2014 by 1000 Pistes Quote Link to comment Share on other sites More sharing options...
Leeroy Posted September 7, 2014 Share Posted September 7, 2014 No it is not possible to put EA81 heads on a EA71 block. The pistons are set further apart in the EA81 engine block. The EA81 heads you are referring to sound like the turbo heads. They were factory but only on the EA81T. Quote Link to comment Share on other sites More sharing options...
cubastreet Posted December 3, 2014 Author Share Posted December 3, 2014 2 Quote Link to comment Share on other sites More sharing options...
bertmann73 Posted December 4, 2014 Share Posted December 4, 2014 very franken-soob....cant wait to see that running....i wanna do it now Quote Link to comment Share on other sites More sharing options...
cubastreet Posted December 4, 2014 Author Share Posted December 4, 2014 Yeah progress has been pretty slow on this one - life gets in the way. My valve stem seals are really bad now, I leave a cloud of smoke at the bottom of every hill. That gives me some motivation to get in with it. I'm angling the carbs backwards so I won't have to relocate the battery. Should look and sound pretty cool and hopefully have a bit more get up and go too. Quote Link to comment Share on other sites More sharing options...
cubastreet Posted December 9, 2014 Author Share Posted December 9, 2014 Quote Link to comment Share on other sites More sharing options...
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