I'd been wanting to see inside my loved ea81 engine.
I've got one engine out of my blue Brat, here in my shed now.
Ready to research engine building from the airplane guys, and tear into mine see what I can do. I know with some porting and oversize valves, the airflow gain through the engine should be huge. I want to know what aftermarket pistons and camshaft are available, wondering if anything besides the simplest 100% flat-top piston like in your pics above could be better for HP?
..and also HP for boost, because I think 9:1 is the perfect compression ratio for a 200HP turbo ea81 motor. WRX 13T turbo probably just the correct size.
Yeah, my engine here is an awesome later-project of mine, I've got a handful of projects ahead of it I need to finish..
I don't really know all the piston options out there, I had a shop order them because the same shop bored my piston sleeves. These were just the correct size for the now-larger-sleeves. Darn, I should have looked into that.
Oh well, she has plenty of spunk as she is.
Thanks for the pics. They have been a big help with assembling a motor that I've never seen before. Also, what is that brass colored sensor looking thing just to the left of your crank pulley. My motor doesn't have one.
That brass thing is the power-cable-hookup for the block heater.
Keep my engine nice and toasty over the fridgid winter.
I have the cord in the cab, just pull up closer to the house, grab an extension cord, and my baby stays nice and warm.