Thanks eveyone for your great suggestions, I'll look into a few things first.

What's funny is that both the shop manual as well as the owners bible both state to check and "adjust" the turbo boost pressure frequently. Then they go on to describe every other turbo and engine combo around and provide on skimpy drawing of a like rod assembly for a garret and no info on how to adjust.

I'm looking into EGT set-up, have order a Hallman boost controller and dry fitted my intercooler today, no plumbing, just a dry fit for size and pipe locations. I will check to make sure my car has the service port on the exhaust manifold and use that for the EGT probe.

So far the biggest issue I can see if the IP. From what I have researched this unit on the 603 has no easily adjust ALDA screw, and would require shimming and bench set-up, which is beyond my capability so would likely be farmed out. If this is easier than I assume, please let me know how.

Thanks,
Bill

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Stable Mates:
1987 300TD 310K mi (Hans)
2008 Jeep Grand Cherokee OM642 165k mi (Benzrokee)