What kind of innovate features did you mean Bruce?
It definitely looks like a Lang, and nothing else IMHO, perhaps an early Lang?
See the top corners in this drawing? They dip down from the top deck. Gary did this to clear the 4 corners of the engine case where the lower tin bolts on. He did this to get the top deck of the sump as high and as close to the case as possible. Those 4 corners of his sump were intended to be only 1-2mm from the case. That way if the engine bottomed out, the corner of the sump would only deflect up by that small amount. And that amount is not enough to cause the sump to break. The mystery sump above doesn't have this unique feature.
Next look at the part of the sump directly below the engine case part line. Again, the deck dips down to clear the bolts that hold the case together. It gets the sump as high and close to the case as possible.
Go up and look at this mystery sump's mounting flange where it attaches to the case. See how tall it is? The designer of that sump didn't care how low it hung from the case.
In the 3rd pic above, you can clearly see how thick the mounting flange of the mystery sump is. This requires longer studs, or special long nuts like Berg currently supplies. Gary didn't go this way. His flange was quite thin. So thin that you didn't need any special hardware to attach his sump. But a thin flange is no good, right? Not a problem with the way a Lang sump fits so close to the case.
The fins on the top of a Lang are a lot shorter. That's because it is so close to the case, they can't be nearly as tall as the ones above.
Have another look at the drawing of the Lang. On the far side, you can see two of the fins on top have a short break in them. This was to clear the bump on the case for the stud for the thermostat.
IMO it doesn't look anything like a Lang sump.
The Cal-look Lounge
Author
