Thanks Mark.If I want to lower EGT's radically I think I only have two choices, back off the fuel screw or my right foot.The turbo is a K14. I know there are other smaller turbos that spool faster but I need this thing pumping still at around 4K - smaller turbos generally can't sustain that (from what I've read).Based on what libby suggested, I should have seen a reduction in EGT's with the increase of boost (makes perfect sense).Heck, maybe I should finish that water/meth injection chingus - I was almost done with it. That would cool things off.
...BTW your Bieber avatar is awesome.-Malone
What kind of intercooler?
If you have the turbo rebuilt put a 360 thrust bearing in it. It will lower your egt by spooling even faster but mainly by not using so much force to spool it in the first place. Your EGT sound fine as long as it stabilizes and drops down once rolling good. If you have a fast reacting probe like a micro 1000 then I would say have fun driving. If you have another I cannot say.
I would look at that bearing again. No way a K14 should have a spool issue with a 360 bearing and such short intake unless that intercooler is a restriction. Can you measure the pre and post IC part of the intake to see if it is causing lag? If not could you remove it and put on a stock one no IC and see if anything changes? I would run it some and break it in. Something just isn't adding up though.
how many miles do you have on it? It will free up after many miles, mine took like 6,000 on the last engine. You will feel the difference at least I did. When it frees up I got 5mpg better and egt lowered slightly. At 1,300f pre turbo with a micro 1000 I would run the boost to 17psi or so and call it good. I wouldn't run it there all the time, say like cruising 55mph and it is 1300f but if you are accelerating and not leveled off I personally wouldn't worry. BUT I also have had an engine drop a precup, but my EGT were much higher, so take it for what it is worth.
Was the "200hp" rating on the intercooler core for diesel or gas use? Remember that diesels use a lot more air than gasser so they need larger intercoolers for the same HP.
The idea of more boost is once it builds then the cooler air will be helping more and it should come down some after it peaks at your 1300f. If all your tests don't work I would try a different manifold.
I have an AHU manifold I'd let you borrow for the cost of shipping both ways.
Correct. The turbo has to be somewhere in the upper efficiency range when adding more to it to cool EGT's. If they turbo is already on the back side of the efficiency island.. adding more is just gonna make everything hotter.