Originally Posted by 200MPH
I'm having trouble sorting out a couple of things in my GT40 motor,
1) Motor has oil surge
2) The other half of the problem I'm having is that the motor misfires coming out of corners, coughs and then clears and pulls happily down the straight.
regarding issue 1, you are on the well worn path to realising that a dry sump set-up is, on a total ownership cost and aggravation-minimisation basis, the only way to go. This is such a common progression, and apart from having the engine live longer you get to drop it 2 inches for improved CG. I have lost count of how many bearing replacements and sump revisions, and accusump band-aids I've mucked around with - never again.
regarding issue 2, I think it is highly likely that your fuel system is the cause. Datalog fuel pressure, then you'll know for sure. Another possibility is that your wiring and/or ignition components have a bad connection somewhere that only shows up when they experience lateral accel.
Andrew Robertson, New Zealand