August 22, 200520 yr Okay.. so haha... I totally forgot that I had an EA81 w/ a good y-pipe-back except for a muffler... any way... I'm doing a complete tear down and I was wondering if anyone has good cleaning tips that wont f-up the aluminum. There is some minor rust on some bolts etc... any tips?? I think I want to split the block and clean all that up too. at the very least I need to do a cylinder hone and ring set... I have to split it to do that right? Does anyone know where to get a good re-build kit of all the gaskets and stuff? And, of course. What can I do for PERFORMANCE? Local machine shop bore each cylinder out .5 liter? Make it a 2 liter ea81?? Pistons to match of course.. Valve upgrades? Thoughts? Suggestions? I want our brat to have triple digit horse power!
August 23, 200520 yr yeah, you gotta split it to do that..... 1600 pistons hydro block ground cam there are a few more that i cannot think of. and you might be surprised at the hatching in the cylinders. oh, and napa says they have a gasket kit,rebuild kit thing....or something
August 23, 200520 yr definately go with the 1600 pistons cam regrind shave each head .040" get the crank knife edged if you have the money Larger valves(Ram has these for their ea81 aircraft sube engines) Heavy duty valve springs(Ram has these too) **Port the heads** The intake is very small and there is big room for improvement. The exhaust needs to be smoothed out as well as polishing the combustion chamber. Remember don't over polish the intake as the the slight roughness helps with volumetric efficiency! (On a N/A motor) That is what I plan on doing when I do a ea81 motor :cool:
August 23, 200520 yr Author Okay so.. to avoid any confusion and stupidity on my part.. what are the 1600 pistons?? You're not talking about pistons out of any ea71 right?
August 23, 200520 yr Yes Ea71 engine. Same bore as your ea81 just a shorter stroke.They are a direct fit to the 81.
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