Personally I wouldn’t bother with bearings as that requires splitting the block and these bottoms ends arepretty sturdy from the factory. They’ll go the distance.
I would look into servicing the oil pump as this causes bearing issues if they were to occur.
If doing rings I would bother with a home either. See here:
http://www.snowvalle...kes/dnthone.htm
So long as there’s no issues with the bore there’s no reason to hone. Also a good time for new pistons that will hold up with a turbo. The factory items from what I’ve read are good for 5spi, maybe 8psi, but after that you’ll find yourself pulling the engine down for another build.
Really though, if you’re going to all this effort, put your money into a half cut. The conversion overall will most likely cost you a little more but the gains will be more than what you could ever get on the EJ22 with a turbo and factory management.
If you weren’t doing engine work I’d say go for it - but realise that it’s a shit-and-giggles setup that’s a bit of fun more than anything.
And if you’re going turbo - either way - and the fuel pump is dead, now is the time to upgrade the fuel pump rather than replace with a pump that’s good for NA and not much else.
Cheers
Bennie