Ryan, after some good and bad experiences with tuners and new motor setups, there's a few things I'll now always do before running an engine that hasn't been run in awhile, or has new equipment on it:
1) If possible, pressure up the fuel rails and injectors, together, off the engine, or on a spare manifold, to check for leaky or sticking injectors. Another well known Supra tuner & I hydrolocked a 2JZ engine five years ago because some injector adapters were malplaced.
2) Test fire each injector from the ECU before pressurising the fuel rail. This is an absolute must to ensure the injectors are opening and closing smoothly, and to again avoid the situation of a leaky injector filling a cylinder with fuel and hydrolocking the engine. During our first dyno session with Mitch, we found that over half the injectors I'd had cleaned were sticking, and the cylinders were full of gasoline. Fortunately we found it before we spun the engine, but not before we'd pressured up the rail ;-) Once you've fired a good injector and heard the positive click it makes, then you fire a duff one, you'll detect the difference immediately.
3) Test fire each ignition coil (if a COP system) and spark plug to check that the firing order is correct and you've got good spark.
4) When turning the motor over to build oil pressure before firing the engine, if the oil pressure doesn't build up immediately, the pump could be "airlocked". It helps to crack a line on the discharge side of the pump, or to partially unscrew the oil filter. I've had this happen all three times that we've run the motor on the dyno.
5) As Steve Chumo pointed out, priming the turbo would be a great idea to avoid spinning it dry.
6) It goes without saying to check the calibration of your WBO2 controller in free air, and ensure that the value is the same in the ECU as on its display (if you have a separate display).
7) Don't be lulled into thinking when you run the engine the first time, if the WBO2 reads 10:1 that "maybe" you're a little rich, but still OK. Many highly thought of WBO2 setups only read down to 10:1, and no further. So you could have all your injectors stuck open and still be reading 10:1. This tip is especially near & dear to me as I had a 2JZ engine ruined because of it.
