Got the turbo on, it runs pretty good but I'm still not happy with it. It comes on hard around 1900-2100. Sees 45-50 psi. It feels like it falls off on top end. Right before it shifts. It does clean the 250hp injectors up pretty decent. I'm thinking I may have a small boost leak somewhere.
Also I've noticed, after a pull the engine temp goes up farther than normal operating temp. Usually stays right below half way mark and I'll do a pull and it'll go past the half mark and cool back down within a minute or so. Is that a sign of a head gasket leaking.? Doesnt leak any around the truck but wont stay 100% full of antifreeze. It's down an inch or 2 in the radiator.
i have noticed on my compound setup that my coolant will rise in temp when i hammer but it comes back down with in 10 seconds or so of heavy loading. i also find i cant get full hard spool at low end unless i lock my TC. to that end i have my TC locking at about 12mph when i hit 80+% throttle and man does that change how the truck rockets. the tc lock alone adds a good 25psi of boost on top of what ever im at and then as the rpm's go back up the boost climes up and then gets another spike at the next shift point.
with out the TC locking the truck feels much like you are describing.
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