[silver911rdb]

Thanks Steve! So what you're saying is that by increasing the fuel pressure, the stock 964 injectors will increase the cc delivery for a given duty cycle compared to stock. And this should be enough to feed the engine at sustained high RPM. I'll need to search around to see how the fuel pressure regulator is adjusted as I've never seen that done before.
Just to give a little background on the engine. The car was recently purchased and it had a 3.8 conversion done. The injectors and tune were never changed from stock. The previous owner ran it for a day at the track. It seemed to run fine. On the next track day the engine blew. He said it smoked and just stopped working. He said he thought it hydralocked. My buddy recently purchased the car and I'm working with him to go through the engine. Compression was really bad on most of the cylinders so we pulled the engine. We found the engine definitely ingested a ton of oil (possibly due to an overfill) and the mufflers were full of oil. Most of the cylinders had broken piston rings. At this point we're not sure if it was an overfill that broke the rings or the injectors/tune. Do you think the injectors/tune would cause the rings to break the way they did? They were broken into small pieces around the piston. This is the 2nd time the previous owner had an issue with the rings breaking so I'm guessing it's the tune. Either way we'll work with you to get the tune correct once we get the engine back together again.