ok to start the truck is a 99 ford psd 450 6spd 2x 12ft flatbed 488 rears. this truck has a 140k and i finaly talked my old man inot a set of guages and then a chip. right now we the guages installed and the chip is on the way. but before i install it i wanna see if the numbers im seeing are right cause i don't think they are. but i deal more w/ cummins engines and not psd's. on the first run after the guages where installed we got only 7 pounds of boost at wot and up around 3k rpm pyro was up to 1200 maybe higher. second run i unpluged the waste gate and managed a quicker 15 lbs but still at high rpms like 2500 truck was a little quicker but still not like i hear its supposed to run. ya'll say it runs better then a cummins yet the 5 cummins that i am around would spank this thing any day of the week. my question ot ya'll is whats stock boost and why was it so low on the first run w/ the waste gate operating. now this truck has never had much power always been a pretty doggy on the low end and the guages just show why. now i know on my personal cummins along w/ my 2 cousins and a couple freinds that when we step on it the pyro climbs the smoke rolls and then the truck is gone pulling from about 1600 rpm all the way through to the defuel point. these are 354 and 410 gears a couple autos and a couple sticks they are all fast. and by our figureing if the psd was running right then it should have us for a while on the low end especilly w/ the low gears but no such thing every diesel spanks this thing even the old idi i used to have could walk all over this truck. the chip i orderd is the edge evo. our hope is that it will wake this truck up and make it run like its supposed to. my last question is what can the stock clutch hold on this truck remember its a 450 that hauls upto 13k on the bed. any other advice in getting this truck to run like its supposed to would be appreciated thanks.

 

You have no business modding this truck before you fix it to run in its stock configuration. You may have a boost leak and/or a bypass/wastegate problem among other things. Those Cummins are strong engines. They do not get that good of mileage under a load, don't care what you say. The PSD you are currently fooling with has obvious issues. You should be able to pull at least 20 psi under full throttle with the weight you are talking about. The gauges just confirmed that you have a dog or a sick pup. My advice is fix it before tuning it.

 

Tenn, I can't believe you even answered this goofballs bogus question. This is the cummins lover that comes in here for one purpose only, to bash PSD's. I have just about decided he only wishes he had one of his own. After the last thread he started I thought he may get banned, but unfortunetely that ain't happened yet. He/She? needs to spend a little time on spelling, punctuation and grammar before any kind of reply will mean anything anyway.

 

Well Mark, I've been out of the loop lately what with 4th Jul and work and getting a boat and fishing etc. I do remember him from before now though. He did ask a question though and I felt compelled to respond. He has PSD envy apparantly, or just has a POS Ford at his dad's disposal. If the PSD is sick, then he is obviosly misguided when comparing it to those Cummins trucks. If he is FOS, then so be it.

 

well like you said, the problem is circled right there on the front grill. start out by selling it and buying a cummins, and that should fix most of your problems

 

Uhh ooooh...

 

Ya guys are so good you could put a stop light on a walking cane even on a cummings.

 

Anyone that thinks this refugee from myspace.com is not a 15 or 16 year old semi-literate troublemaker should just do a simple search for any thread initiated by him/her. From then on, no matter what idiotic threads started by this goof will just be totally ignored. Just read them for the laugh factor.

 

what is wrong with 16 year olds who have myspace accounts?

 

Do the above mentioned search, and it will answer your question for you.

 

i would not be automatically included in that group, would i?

www.myspace.com/krismyers

 

Nothing Kris, it's his BS here that I can do without.

 

I doubt it, I have never visited that site and not likely to, not in this lifetime anyway.

 

Gentlemen, everyone starts out young. Kris has a good point, is an excellent contributor to the forum.
I don't think that mhannink is trying to spam us with Cummins crap, he just mentions that he knows more about them than the PSD. So all of you chill out and let him speak.

Mhannink I second that you would get much better results fixing the problem that exists on the engine in the first place. I have a F-550 six speed with 4.88's as well and can easily hit 20 psi with a stock tune. What it is going to require is for someone to work on it that knows how to diagnose all the sendors, and check fuel pressure as well while under load, not just at idle.
Once you get the real problem corrected, you'll have a much better running truck and your dad my decide to leave the chip off.
If it's a company truck that's driven by a lot of different people, I recommend that. The PSD can survive a LOT of abuse if it's kept in stock trim.

 

well first off so that is very clear to all i have no psd envy, i recently purchased a 95 dodge cummins 4x4 5spd and am extremely satisfied. but i did for this post try to put away some of my opinions in the light of truly fixing this problem. i know the truck is sick, i checked all the clamps on the intake and sensors as best i could. i am schooled in mechanics am currently atending to wyotech in sacromento, and i was in laramie for a spell. i did take engine managment systems already and know how to diagnois a problem. one like this however where there are no dtc's or odd syptoms just lack of power makes this much harder more so since its now that we are just getting the numbers we needed a long time ago. also i have little experience working on psd's i do have a freind how has a lot of experience though he was basicaly a parts changer. my other problem in diagnosing this is i don't have the fancy little scan tools that ford has or any full time mechanic. like i said im going to school i can't afford a $8k scan tool now back to the subject, the truck has been in to the steelership before, and they always come back w/ its fine no problems at all. i even asked about pid's and freeze fram data they said there was none, and all sensors where fine. now obvioulsy these guys are wrong. i know theres a problem, have for a while and have never trusted the dealership parts changers anyways. thats why im posting i need info on where to go like i have been saying i don't know much about these psd's, having busted my knucles on cummins instead. so i don't know what can go wrong that wont show up on the computer that would have such a loss of power. one thing i did forget to mention is that i will be ordering new aftercooler boots to make sure that the intake is sealed, and not leaking out valuable boost. now to the other things i wanted to touch on first don't judge me as a 15 or 16 year old unless you know me for all you know i cold be 30 and a very experienced mechanic. now i know i said im in school so that narrows it down and i wont say that but ya'll just jump to conclusions next time don't. also don't judge by how someone writes we are not all english majors and some like myself couldn't give a hoot about english i was born to turn wrenches thats what i love i was not born to write novels. just because some doesn't write perfect doesn't mean the aint smart al right. lastly i know its technically a company truck but theres all of 3 drives all family and its owned by my dad every person that drives the truck has been in around and driven otr trucks and has experience w/ hauling and truck driving so we can make this engine last w/ the tune. now lets drop all these mayspace comments and belittling and lets see if ya'll can show me how this engine is supposed to run. i wont even bring my personal experiences about healty psd'svs. cummins into this ill let ya'll hear that in another thread cause yes im a hell raiser.