That´s interesting. I don´t think there is a possibility that we use the same machine shop, unless you too live in Finland.I am having the same issue with oil getting in the cylinders. Was built 3 times by a very good shop. First build, new bore size, had steel rings with 12lb oil ring. 80 miles later blowing a lot of blue smoke out the tail pipes. Second build rehone and used moly rings with 15lb oil ring. 160 miles later a lot of blue smoke out the tailpipes again. Third build, different pistons with 1/16, 3/16 rings, next size bore and 15lb oil ring. Builder thought I wasn't breaking it in correct. He ran it in the dyno to make sure this time. Get it home and 20 miles later same oil issue. Twin turbo, all cold piping bone dry, oil in lower half of intake ports of heads. Intake manifold bone dry. Heads were just done by top head guy. Heads were checked thoroughly each time to make sure nothing was missed. Pressured intake with rockers removed to 35psi. Resealed intake studs with different sealant each time. On going on a fourth build with a different shop. Hone was questioned from the start.
In your pictures you can see the cross hatch on the hone. It looks very fine like mine did. I wonder if the same shop honed our blocks? Can you email me who did the hone? [email protected]. I don't want to throw my builder under the bus. He is a gentleman and was doing everything he could.
On my current build, with new shop, the cylinders were just honed with a 325 stone using total seal ap rings, as per total seal recommendation. I really hope this fixes the issue. This is getting old and expensive.
There might be a little chance that the rings did not seat well, because I had some tuning issues with this new engine. I drove 150-200 miles with old ev1 injectors and we just couldn´t tune it right with them. It was too rich when cruising no matter what we did, 11.5-13.5 afr. I switched the injectors to new ev14 and the tuning problem disappeared. I have asked some engine builders could the tricky injectors and a rich mixture be the reason for poor ring seat, but they haven´t seen the connection between these two. So I don´t know... Going to try Hellfire anyway.