Got the truck to the Westech Performance dyno today.
AND IT DIDN'T BLOW UP!!!
First, I tried to tune the truck and the ECM computer gave me the finger. Sweet talked it for a while, and it relented. Now the truck wouldn't start, I left the power on too long. Charge battery. Then we ran it up to 200mph to make sure the new driveshaft stayed in 2 pieces, not 3 or 4. AOK. Then the first "tuning" pull, it laid down 674rwhp with a really aggressive tune.
We had 816rwhp last time, before the new engine.
Found the fuel system was only delivering 1/2 the fuel pressure I programmed. Replaced the injection pump controller. Loaded in a very mild tune, then tried again, and pushed 733rwhp, and data looked good. So I upped the fuel some more, and WHAM! It woke right up. Tires barked on the rollers, blew the vent hose apart, and scared the snot out of us. That is one angry diesel.
It put out 915rwhp from a 4.8 second pull, making only 50psi boost with 75% fueling. But the higher I turn it up, the shorter it's lifespan, so we will keep it there for now. Tried to do sustained testing, but found the tires got hotter than normal due to tire slip, and didn't want to make a mess. So hopefully next test will be at Bonneville.