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Message: [QUOTE="TARM, post: 351925, member: 578"] I have not actually thought about it directly but I have to admit if I had gone all out from the very beginning with my build I would be lossing my mind. I started with what I thought was a engine that was in perfect condition. Thought it did not have anything mechanically wrong with it. But as I installed injectors, push rods, valve springs, HPOP, fuel system, etc things just started popping up and showing their ugly heads. IPR valve, ICP sensor, water pump. Then I had things that came about from the upgrades themselves but again had to all be diagnosed through all the other stuff as well. Cracked nozzle, boost leaks(long term I never realized until I just pulled the IC to swap in a hypermax unit. I easily spent 2x the time it took to install everything diagnosing and tracing out issues. The more complicated the upgrades would have been and the less experience I would have had with what to expect the more of a nightmare it would have been to try and get everything correct. I can say I have learned so much and to be completely honest even though so of it was quite frustrating I over all had a great time and learned a large amount. It will significantly effect how well future upgrades and work on my 7.3 and over all vehicle go. I am in a good position. I have 2 other vehicles that my wife and I can drive that fit everybody. If my Excursion is down for weeks or months we are not greatly inconvenienced. Doing work and upgrades on my X is a hobby for me. I enjoy it. If it was my only DD I would likely have a very different outlook and conclusion on how everything went and how much I enjoyed it. I think that is always something to keep in mind. If I stay with the HEUI 7.3 in this particular vehicle( I will likely always have some type of truck with a 7.3 in it for the foreseeable future) the next big upgrades will be compounds, eventually going up to 400% nozzles, head work and bottom end rebuild. Based on my current knowledge it will be something in the medium performance street range. Around 64-68mm manifold with a 1.0 housing (possibly a stock DMAX VGT turbo or aftermarket with something like the GT5518 or one of the custom Garrett builds like Force Inductions puts out. Something much like my current gtx4294r that I can do anything with that has the least amount of negative side effects and the most positives for me. Very fast spool up, good top end with a very broad rpm band up up to 4500 RPM redline limiter set. Can tow, run large tires whatever. With WG and tune adjustments can run 500hp to 700HP never exceeding 1200 ftlb tq preferably 1100 ftlb. No surging issues regardless of load or throttle position. I certainly want to work out a full electronic control of the waste gate system. Boost at these level IMO for ideal performance needs to be control per trans gear and rpm level. That's my initial plans anyways. [/QUOTE]