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Now we are getting into some good details about your setup:
1. If you hava a chip - which tuner? Do you have a boost fooler? If the PCM detects over 22 psi boost from the MAP sensor it will defuel. This could be a possible source of the top end power loss.
2. Did you rebuild the turbo since you had it all apart to add the wheel & high flow outlet? Have you changed or adjusted the wastegate on the turbo so it builds more boost - if that is what you are after. In the stock setup the wastegate will open to prevent an overboost condition. To get more boost some will shorten up the wastegate actuator rod or replace it all together with something like the Big Head Actuator to increase boost performance. But you don't want to play too often above 27 psi.
I did the same turbo mods to my Excursion before the current setup. Worked well.
1) I do not have a chip/tuner I will not add one until i get the power I should have stock. I don't want to cover up problems with a chip.
I do not have a boost fooler as I only peak at 20psi WOT.
I did not rebuild the turbo it is in excellent condition. No in and out play, very minimal side to side and the stock compressor wheel looked like it has never even seen a spec of dust.
I have a turbo master actuator waiting to be installed it came in the mail late and I wasn't able to put it on when I had everything pulled out.
Ah.... Like mentioned - this could be an ICP problem, a chip problem or a defueling problem.
I could still have an ICP Problem with a brand new motorcraft ICP?
No chip so that's ruled out.
Is there another way to trigger defueling other than over 23 psi boost? I'm 20psi WOT, before I fixed my boots and up pipes I only hit 16 psi WOT and still had top end issues.
This begs the question: Just exactly how big are you planning to go with the injectors? If you need a 5/8" fuel line to feed the motor - a wasted $200 is the least of your worries. A stock OEM pump with a proper Hutch mod (3/8" line) and a pre-pump screen (not filter) is plenty for 160CC sticks. To do 160/100s, you'll need a minimum of $5K - new sticks with intake, turbo, CAC, and exhaust upgrades - then the transmission will be the next weak link. You can't even consider these upgrades without gauges - lest you have an affinity for engine replacements (plural). If you click the Custom Tunes link in my signature, you'll get an idea of what I'm talking about.
That example above was Stage II sticks. Once you go 250/200s to 450/400s, you no longer have anything resembling a stock fuel system, nor do you have an Ex with street manners. You also lack $10K - $15K that was once in your possession. $200 seems like a lot of money "for a filter and a few fittings" - welcome to diesel.
This was my answer to the Hutch mod with Stage II sticks and an OEM fuel pump, and my results:
Thanks for bringing me back to reality. I will get the DD pre pump kit unless riffraff releases theirs soon. Anything other than the pre pump kit you would recommend?
Frp rebuild kit?
Riffraff frx?
I have a generic pump in now was gonna either put in an oem Bosch but was seeing stuff about a walbro too, and keep the generic one as a spare.
Yeah the Torque App and an OBDII dongle, if you have a smart phone. Then with that you can start asking about why your ICP pressure drops off at the top end and you'll be able to say you know for sure it's not a fuel pressure problem because your new gauge says you're making XXpsi at WOT
I'm not saying my factory system is too small for my setup.
I believe something on it is messed up wether it be clogged screens in tank, weak pump, or frp needs rebuild.
If something needs replaced I like to upgrade it at the same time. Ya maybe I got carried away with wanting a 5/8" pickup looks like I will not need that at least for a couple years. so I'm content with the DD pre pump kit.
1) I do not have a chip/tuner I will not add one until i get the power I should have stock. I don't want to cover up problems with a chip.
Excellent plan - that's the right way to to it.
Originally Posted by savagebagz
I do not have a boost fooler as I only peak at 20psi WOT.
Depending on which tuner you go with or what boost level you plan to hit, you might need one in the future. Edit:The riffraff OCR (boost fooler) will not fit the Excursion models, unless they changed the design recently..
Originally Posted by savagebagz
I have a turbo master actuator waiting to be installed it came in the mail late and I wasn't able to put it on when I had everything pulled out.
This will make an improvement to the current setup.
For what it's worth, it doesn't sound like you have a fueling issue. Sounds like your close to hitting the max on your current setup. But we'll se once you take a look at you ICP, Duty Cycle and some other PID's.
Do you have any idea of other possible issues? It idles and runs perfect, a lot quicker off the line than stock but feels like I'm always driving up a hill.
[QUOTE=white Buffalo;15057481]Excellent plan - that's the right way to to it.
[QUOTE=savagebagz;15057414]I do not have a boost fooler as I only peak at 20psi WOT.[QUOTE]Depending on which tuner you go with or what boost level you plan to hit, you might need one in the future.
Originally Posted by savagebagz
I have a turbo master actuator waiting to be installed it came in the mail late and I wasn't able to put it on when I had everything pulled out.[QUOTE/] This will make an improvement to the current setup.
For what it's worth, it doesn't sound like you have a fueling issue. Sounds like your close to hitting the max on your current setup. But we'll se once you take a look at you ICP, Duty Cycle and some other PID's.
Hmm that's interesting considering my bone stock same year truck will flat out rape my excursion 0-60. Are the excursions de tuned or something.
Open your fuel door. Unscrew the fuel cap. Grab an air compressor if you have one. Get under the truck and disconnected the fuel line on the back of the fuel pump. Stick about 25-30ish psi backward through the fuel system-force air into the tank-. If you hear a huge bubble sound you're on the right track. Blow the air through for a while. Put everything back together and go for a ride. If the truck still feels the same at the top end then IF it is a fuel pressure problem you may have a fuel pump going out, there isn't much more options from the limited amount of information we have to point at.
With a brand new ICP sensor you can still have issues. You need to verify ICP and the cheapest route is the Torque App if you have a smartphone. Low ICP generally doesn't show its face until until higher rpms, which is what you're describing.
Being stock tuned I would hope this is not an issue since your truck is only demanding roughly 2800 psi. Of it does fall on its face well.... There's another direction we may have to take.
Start at the top, eliminate one potential problem at a time. Starting with what you originally think is fuel. If your screens are packed then blowing air through the line like I said will tell you if the hutch and harpoon mod are next on your list or not. They shouLd be high up on your list regardless IMO.
EDIT: after rereading and remembering that you're dealing with an X I know there are some differences. What they are I'm not sure but if I say anything that pertains to a truck more so then an X please guys step in and correct me.
I will be purchasing a fuel pressure gauge for sure. Does anyone know of any good kits I would rather get a kit than round up all the fittings.
If you buy the gauges from Riffraff, Dieselmanor, ITP and many others. The gauges will come with the sending units, sensors, wires and everything you need to install them for your Powerstroke. You'll need to purchase the gauge pods as well, but the gauges themselves come with the necessary hardware. I have bought gauges from Riffraff, Dieselmanor & ITP. All are good with me.
Edit:Specifically I have bought DiPricol & Isspro fuel pressure gauges from ITP (Driven Diesel, Strictly Diesel whatever they are called now). All have come with everything but the gauge pod.
Originally Posted by JOHN2001
................. If your screens are packed then blowing air through the line like I said will tell you if the hutch and harpoon mod are next on your list or not. They should be high up on your list regardless IMO...............
X2 on the Hutch mod - not an if but a when. I don't believe the Harpoon Mod (cutting the filler neck) yielded the same results as it did on my F-250. The Excursion tank held 44 or 46 gallons before and after this mod.........
I do not have a boost fooler as I only peak at 20psi WOT.
After the turbo master & chip install you might need one. The Riffraff one does not fit the Excursion unless they have changed the design.
Originally Posted by savagebagz
Hmm that's interesting considering my bone stock same year truck will flat out rape my excursion 0-60. Are the excursions de tuned or something.
Not that they are detuned, just different. When I first bought our Excursion I thought it was just like my F-250 with a covered bed.....not at all. Lots of things are different. I don't know how much your Pick-up weighs but my Excursion is a good 1,000 lbs heavier than my F-250 and catches a lot more wind in South Dakota. My Excursion also seemed to have different shifting - as in longer or drawn out compared to our F-250. But I wouldn't be comparing apples to apples with a 2000 Excursion & a 2003 F-250. In addition, all Excursions are California models and different PCM's than the Superdutys. One of the reason's I changed to a pick-up PCM. It's all good - just different........
almost forgot: Strongly consider purchasing a replacement foot and screen assembly for the fuel tank that Pete (F250_) suggested above. I'll bet a case of beer when you drop the Excursion tank she'll be laying on the bottom. Especially if you blow some air back through the system. I had to replace the one in my Excursion as did many others.
After the turbo master & chip install you might need one. The Riffraff one does not fit the Excursion unless they have changed the design.
Not that they are detuned, just different. When I first bought our Excursion I thought it was just like my F-250 with a covered bed.....not at all. Lots of things are different. I don't know how much your Pick-up weighs but my Excursion is a good 1,000 lbs heavier than my F-250 and catches a lot more wind in South Dakota. My Excursion also seemed to have different shifting - as in longer or drawn out compared to our F-250. But I wouldn't be comparing apples to apples with a 2000 Excursion & a 2003 F-250. In addition, all Excursions are California models and different PCM's than the Superdutys. One of the reason's I changed to a pick-up PCM. It's all good - just different........
I figured the extra weight would slow it down some, I also have tires a little bigger than stock but I feel like the difference in speed was more than these two things as the culprit.
My shifts are longer than my truck too but I think that's only because it takes twice as long to reach 3k rpm. My truck usually taps the red line before every WOT shift and my X will rarely ever touch it it just doesn't have the *****.
almost forgot: Strongly consider purchasing a replacement foot and screen assembly for the fuel tank that Pete (F250_) suggested above. I'll bet a case of beer when you drop the Excursion tank she'll be laying on the bottom. Especially if you blow some air back through the system. I had to replace the one in my Excursion as did many others.
Thanks for the heads up I'll get a new one to be safe.
