Well... Some casualties of war today...
Green R32 GTR "GDZILR" (or something like that) forgot to turn at Turn 1 and ran into a wall at high speeds... From what I saw as I drove past the car, it has some major front end remodelling...
Purple People Eater R33 GTR was going great guns for about 6 laps, holding 110-120 degrees oil temps, then half way around lap 7, it developed a very funny noise, and I quickly got off the throttle. The car immediately stalled even though the clutch was disengaged, and I couldn't get it restarted on the fly, so I pulled over to the side of the track.
There I noticed oil temps had risen to 140 degrees (in half a lap!!!) and something was boiling under the hood (probably water)
Initial tests conclude that the engine still has 150-160 compression across the board, so it's not a cracked ringland or any valve issues. It struggles to idle unless coaxed with some throttle input. There's a knocking noise eminating from the engine somewhere, undiagnosed at this stage. Engine oil has been dumped and is sans metal particles, so doubtful that it's a spun bearing. Spark plugs look clean and in good shape.
Fuel pump is definitely an issue, as it has always been since the rebuild. It doesn't prime when the key is turned to ON, as proved by hooking up a fuel pressure gauge. It also doesn't hold proper pressure when the engine is turned off, fuel flows back through the pump back into the tank immediately. Fuel pressure jumps from 50-55psi at idle instead of holding steady at 40 psi like it should be.
Engine is being removed and torn down this weekend. Stay tuned