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Update 5/27. Picked up the Excursion on Saturday 5/25. Tech found the leak behind the turbo as suspected and redid all the connections. One of the gaskets needed replacement. I haven't done much testing in the last couple days, but, after driving the truck for about 50 miles since picking up, it seems to be running good. Makes good boost pressure and is sounding generally healthy with the temps and deltas in the standard ranges. The only thing that I am personally not liking right now is the loud turbo whistle from the new compressor wheel installed.
Update 5/27. Picked up the Excursion on Saturday 5/25. Tech found the leak behind the turbo as suspected and redid all the connections. One of the gaskets needed replacement. I haven't done much testing in the last couple days, but, after driving the truck for about 50 miles since picking up, it seems to be running good. Makes good boost pressure and is sounding generally healthy with the temps and deltas in the standard ranges. The only thing that I am personally not liking right now is the loud turbo whistle from the new compressor wheel installed.
LOL you should straight pipe that beauty and let the turbo sing
Update 5/27. Picked up the Excursion on Saturday 5/25. Tech found the leak behind the turbo as suspected and redid all the connections. One of the gaskets needed replacement. I haven't done much testing in the last couple days, but, after driving the truck for about 50 miles since picking up, it seems to be running good. Makes good boost pressure and is sounding generally healthy with the temps and deltas in the standard ranges. The only thing that I am personally not liking right now is the loud turbo whistle from the new compressor wheel installed.
What "gasket" needed replacement btw and your degas bottle is overfilled. Between the red line and black line is optimal for our engines.
Also curious why you went with bolts instead of studs?
LOL you should straight pipe that beauty and let the turbo sing
Now that you have planted the seed, I will think about it more
Originally Posted by wpg_250
What "gasket" needed replacement btw and your degas bottle is overfilled. Between the red line and black line is optimal for our engines.
Also curious why you went with bolts instead of studs?
I am not exactly sure which gasket he meant. Will ask him and update. I will also check and reduce the coolant. Thanks for catching this. I have been traveling quite a bit for the past few weeks for work and personal stuff. Ordered the ARP studs which he says were the wrong kind. He called me while I was in the mountains of Rocky Mountains and I asked him to just get new OEM bolts from the Ford dealer. I am not convinced he's right as I got him the ARP 250-4202 through the Walmart portal. But, I am glad that the truck is back together
Now that you have planted the seed, I will think about it more
I am not exactly sure which gasket he meant. Will ask him and update. I will also check and reduce the coolant. Thanks for catching this. I have been traveling quite a bit for the past few weeks for work and personal stuff. Ordered the ARP studs which he says were the wrong kind. He called me while I was in the mountains of Rocky Mountains and I asked him to just get new OEM bolts from the Ford dealer. I am not convinced he's right as I got him the ARP 250-4202 through the Walmart portal. But, I am glad that the truck is back together
@TooManyToys. has done exhaustive research on studs vs TTY head bolts. What can be gleaned from his research is the head bolts aren’t failing if torqued properly. The deck and head surfaces were not perfectly flat due to poor machining and/ or tenting causing the head gaskets to fail. There just is so much stigma about the studs that trucks are worth more if they are studded. But if the surfaces are not properly prepped, then even the studded engines will have head gasket issues……bullet proofed, or not.
Update 5/27. Picked up the Excursion on Saturday 5/25. Tech found the leak behind the turbo as suspected and redid all the connections. One of the gaskets needed replacement. I haven't done much testing in the last couple days, but, after driving the truck for about 50 miles since picking up, it seems to be running good. Makes good boost pressure and is sounding generally healthy with the temps and deltas in the standard ranges. The only thing that I am personally not liking right now is the loud turbo whistle from the new compressor wheel installed.
Mahle/Clevite. Link is in the post. Click on "Compressor Wheel"
Looks like a stock oem style wheel. I did the KC turbos single plane balanced wheel. That thing is really loud and I’m straight piped with mod cat. The good thing is the boost off idle is way less laggy than the stock, cause more noise without benefit is sort of annoying.
Drove the Excursion up to NJ on Saturday night. First long drive since the updates/upgrades/fixes etc. were done. The 6.0 performed well and has good power through the band. Outside air temps were in the 70s, 2 passengers and a dog (essentially no weight/load on the vehicle), and mostly drove with cruise set at 70-75. Highest ECT was 194.4, Highest EOT was 215.1 putting the highest delta at 20.7.
Next in my priority of things to fix is the steering wander. I also lost 1 hub cap for the rear wheels If anyone has a lead on this, please let me know.
Drove the Excursion up to NJ on Saturday night. First long drive since the updates/upgrades/fixes etc. were done. The 6.0 performed well and has good power through the band. Outside air temps were in the 70s, 2 passengers and a dog (essentially no weight/load on the vehicle), and mostly drove with cruise set at 70-75. Highest ECT was 194.4, Highest EOT was 215.1 putting the highest delta at 20.7.
Next in my priority of things to fix is the steering wander. I also lost 1 hub cap for the rear wheels If anyone has a lead on this, please let me know.
Do the 6.7 steering box upgrade! Night and day difference 👍
Coming back from roadtrip yesterday in the HOT afternoon (outside temp was 100*+), I noticed that my delta temps were in the mid 20s while cruising. As soon as the fan went into high gear(looking at Fan RPM on the Torque pro screen) , it would do a fine job and reduce the deltas to under 13* within a few minutes. What is the logic behind how the fan gets activated automatically? Should I do the blue wire mod? This vehicle is a people transporter and may tow some lightweight stuff once/twice a year.
First hand calculated mpg since the engine work comes to ~16.6mpg. I have yet to fix the overhead Lie-O-meter
Coming back from roadtrip yesterday in the HOT afternoon (outside temp was 100*+), I noticed that my delta temps were in the mid 20s while cruising. As soon as the fan went into high gear(looking at Fan RPM on the Torque pro screen) , it would do a fine job and reduce the deltas to under 13* within a few minutes.
I'm a neophyte to this platform, so I may be way off base here, but with all that recent work done, shouldn't your delta T's be less than 15*F (or even <10*F)? Doesn't the fan only help cool down the coolant in the radiator (not the oil) or did you install an external oil to air cooler?
I'm a neophyte to this platform, so I may be way off base here, but with all that recent work done, shouldn't your delta T's be less than 15*F (or even <10*F)? Doesn't the fan only help cool down the coolant in the radiator (not the oil) or did you install an external oil to air cooler?
Correct. Fan kicks in when pcm tells it to, fan cools coolant, coolant cools oil.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.
If anyone has a lead on this, please let me know. 
