Need engine builders help, S54 build going terrible wrong.

[SteelGreyM]

Who makes the OE? Corteco or Elring? I was staring at pictures yesterday but couldn’t figure it out. I want to say elring?

Did you use a torque plate when boring/honing?

This. I learned the importance of this step recently after almost all people told me to do so. Even consulted with some of the best engine builders in the country who all required it for these engines...

So I made sure to find a shop who could do it for me. Don’t skip this step!

[SteelGreyM]

Which valve stem seals and piston rings were used? The Supertech valve seals are known to burn oil, so OE is preferred there. Do you know if the oil is entering the cylinder from the head or the block side?

Who makes the OE? Corteco or Elring? I was staring at pictures yesterday but couldn’t figure it out. I want to say elring?

[Mspir3d]

Did you use a torque plate when boring/honing?

[BBRTuning]

How was the engine broken in? I have almost an identical engine build, I did a high idle warmup, full heat cycle, then it was straight on the dyno for medium to full load runs within minutes of coming up to full temp. The engine has 40k on it now (maybe 1/4 of that on track) and doesn’t burn any oil at all, compared to the original engine that always did. Engines should be broken in properly under load, not by babying them around for 500 miles.

Are you running filters? As a tuner I strongly recommend people avoid running open stacks on these engines even with filters, but obviously running them fully open will greatly shorten engine life and introduce debris which will cause bore scoring. This would be a long-term issue though of course.

[Exclusivs]

Burning oil: at what rate/over the course of how many miles driven?


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[digger]

When you do vanos delete are you supposed to do something with oil system ? Like add a restrictor or something to the head ?

[Slideways]

Which valve stem seals and piston rings were used? The Supertech valve seals are known to burn oil, so OE is preferred there. Do you know if the oil is entering the cylinder from the head or the block side?

[Sharino]

Long story but I have a S54 with oversized JE Pistons, carillo rods, PS Designs Alpha-N kit, VAC vanos delete, schrick cams, etc. Problem is, engine burns oil like crazy.

I had a reputable machinist help build the engine. He bored the block and rebuilt the head, valve job, new seals, etc. We have been battling this engine for over a year, constantly burns oil, like a smoke machine. This is what we have done so far:

1) Swapped another S54 head on, completely rebuilt, transferring supertech valves/springs, camshafts, etc. (no difference)
2) swapped oil pump as it has a VAC motorsports one and thought the pressure might be too high so put an oem pump in. (no difference)
3) pulled out the pistons, rehoned bore again, and installed new rings. Followed JE instructions perfectly, rings correctly orientated, lettering facing up, filed perfectly. We actually did this step twice. (no difference). Break in procedure as documented by JE, conventional oil, zinc breakin additive.
4) replaced PCV even though its going to catch can anyways, needed to elimate any possibilities.
5) verified oil drain back from valve cover to oil pain is free flowing

Car uses about a liter of oil per 100kms. Short of swapping in a new block I am stumped.

I am at my wits end, I have built plenty of BMW/Euro engines, never had an issue like this. Any advice please let me know....