pzs Posted May 28, 2014 Share Posted May 28, 2014 I have a low mileage carby ea 82 engine, I also have a high mileage Turbo ea 82 engine. My question is...has anyone swapped over heads and turbo onto a carb engine?.. I understand the carb engine has higher compression pistons, how ever I will not be over revving the engine. What is the general thinking on this, I am thinking of a budget rebuild cleaning the turbo heads up with new springs and rebuild on stock turbo using standard exhaust. It will be bolted up to a standard 3 speed auto running extra cooling on both engine and auto. I am thinking of going this way because of sand driving in desert country and the auto would be easier.....not to mention I already have all parts laying around to do this....thoughts. Quote Link to comment Share on other sites More sharing options...
MilesFox Posted May 28, 2014 Share Posted May 28, 2014 Yes, do it. Run the engine with stock boost and timing. You can get away with pump fuel, but premium would be recommended. You will get an 8.5 compression vs 7.7. The engine will have better low rpm torque before boost. Quote Link to comment Share on other sites More sharing options...
pzs Posted May 29, 2014 Author Share Posted May 29, 2014 Excellent, thanks MilesFox.... has anyone else got thoughts on this? Quote Link to comment Share on other sites More sharing options...
Gloyale Posted May 30, 2014 Share Posted May 30, 2014 EA82 carbed compresion is 9:1 not 8.5:1 Pretty high compression for turbo but will be fun for a while. Will smoke the 3at if you really get on it. Quote Link to comment Share on other sites More sharing options...
MilesFox Posted May 30, 2014 Share Posted May 30, 2014 EA82 carbed compresion is 9:1 not 8.5:1 Pretty high compression for turbo but will be fun for a while. Will smoke the 3at if you really get on it. Sorr i get that confused, i guess it/s 9 for carb and 9.5 for spfi. I did this build with an engine that had been submerged in water and soft-seized; a block of wood and pb blaster saved it. I did some things that were probably not a good ide without cc'ing the heads or pistons, but i ground away the valve reliefs on the piston faces and ported the heads. here is a vid of the engine i had mentioned, slideshow set to funky music. Good luck with your project, don't blow it up, and have fun. don't mind the orange RTV, you should use ultra grey Quote Link to comment Share on other sites More sharing options...
pzs Posted June 1, 2014 Author Share Posted June 1, 2014 (edited) How did it go..... was it reliable, did it last long, did it give marked improvement to performance, did it run hot. Very interested. Edited June 1, 2014 by pzs Quote Link to comment Share on other sites More sharing options...
MilesFox Posted June 1, 2014 Share Posted June 1, 2014 Well, the motor was put together in 2003 in the video. It was then swapped into a gl-10 and daily driven for 2 years. Then it sat for a while, parted out back into the rx, were it was again salvsged as the rx was junked. It sat around in a garage for 2 years again, and found its way into the infamous monster wedge xt. IT was installed in that beast several years ago, where the car has mostly sat trying to figure out tuning issues. This is not the motor's fault, but the recipient car's mix and match buld's fault. So far we are trying to resurrect the engine by getting its engine management installed correctly. You can follow this thread ( http://www.ultimatesubaru.org/forum/topic/146890-vacuum-diagram-needed-for-ea82t-wspider-manifold/ ) to follow up on this particular engine. 1 Quote Link to comment Share on other sites More sharing options...
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