Engine Oil Temp (EOT), Engine Coolant Temp (ECT). You will need gauges/monitor to check these temps when motor is fully warmed up to operating temp (190ish). Once up to temp, cruise on the by-way 55-60mph on flat ground for a couple of miles. Check your ECT/EOT, the difference should be no more than 15* apart, if 15* or more then it's a indication that your oil cooler is/getting clogged.
If you gonna do the EGR delete, and your ECT/EOT delta is at 15* or more, then while you have the turbo and intake off, you can get to the oil cooler and replace that while your there.
The 2005 6.0 motor is known for the Snap To Connect (STC) fitting to fail on the High Pressure Oil Pump (HPOP). Ford came out with a updated STC fitting to prevent/fix the old style STC fitting. So while you have the turbo/intake out for the EGR delete, you can update the STC fitting. When the old style STC fitting fails, it could leave you on the side of the road cursing.
If you want to take care if the 6.0 issues, it would be wise to get gauges/monitor. In my opinion, ECT, EOT, EGT, Boost psi, Fuel psi and trans temp if you tow is the minimum gauges you should have.
ECT/EOT gauges for oil cooler delta and normal engine temp monitoring
EGT gauge so you don't melt your turbo
Boost gauge so you don't over boost and blow headgaskets
Fuel psi gauge- when fuel psi drops below 45psi from idle to Wide Open Throttle (WOT), you take a chance of damaging those expensive injectors.
Trans temp gauge if you tow, you don't want to cook your trans.
If your on a budget for gauges/monitor, then there is the ScangaugeII ($160ish). It will monitor a butt load of parameters, but won't do fuel psi or EGT, youll need analog gauges for them.
If your pockets are deeper, there is the fancy Edge Insight CS/CTS. The CS/CTS will monitor a butt load of parameters, including fuel psi and EGT if you pay extra for the expandable cable and thremocouple/sending unit. Or go with analog gauges for EGT and fuel psi.
What I'm getting at is, if your gonna go thru the trouble of deleting the EGR cooler and have the top end apart, then you might as well do it right the first time and do it once.
2004 F350 CC DRW King Ranch
X-3 tunes by DJ,QT,GH,ID,Gyphon FICM tuner,head studs,II Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,Snow Perf stage II,EGR delete,AD2,4" turbo back straight pipe,K&N intake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB
Thanks to:JASONS REPAIR AND PERFORMANCE-TELFORD,PA.
"Are diesel pickups hot rods? Yes,they are-perhaps the most versatile hot rods ever made"---Diesel Power Magazine