02BigD
New member
Can we get a starting post that explains what your running into to start the discussion here? Please and thank you.
Based on this brief description - I would say you have an issue somewhere - and its in the HPO system somewhere... that means oil feed to the reservoir, reservoir, pump, IPR, lines, injectors, etc... Your truck should be snappy and consistent. Start a thread here that outlines your issues - I've seen the huge thread over on PSN - and honestly I haven't read but a fraction of it. Of course I'm going to ask for some AE info that you don't have, I'm going to ask what oil you're running, as well as any additives, and I'm going to ask if there are any scenarios where it always seems to run great, or it always seems to run like crap.
Reliable is jumping in, turning the key, and not worrying about it. Period.We can get into the merits of compounds - but until you fix the underlying issue - it doesn't matter, throwing more money and turbos at it won't fix it. You have a solid base that just needs to have the "kinks" worked out - and unfortunately I have yet to see a build that didn't have some kinks. These aren't like small block chevy engines where you can almost go down to the grocery store to buy parts and they work out of the box.
To give you a for instance - last summer I did what I call a "medium power build" for a local guy that is doing nothing but truck pulling his truck. It has a Gen3 pump, Custom S400 charger, 400/200 sticks, fuel system, etc... all on the stock bottom end (forged rod truck). I didn't get a chance to fully test it before it left my shop due to some parts issues and timing and whatever - the list goes on... the truck ran good out of the gate, but then performance started to suffer, and then suffer some more.... I brought back into the shop and started diagnosing.... I found it wasn't making ICP and started to track down issues.... first thing I found was a blown seal on the front of the Gen3.... fixed that and went testing again.... it was noticably better, but fell off after the initial punch.... pulled the sticks because of some development work I was questioning - nothing wrong... pulled the stock HPOP and the IPR - tossed it all back together and BAM - runs like a champ, launches hard and pulls like a damn freight train. The moral of the story is its probably not one big issue plaguing you - its lots of small issues making your experience less than desirable.
Just my 2 cents, the title of the thread is wrong as was the way the other post on PSN was made. I built a mechanical engine for the OP with customer supplied injectors and a 100,000 mile plus body/wiring harness. The build did as it was supposed to and the entire truck ran great while I had it, great throttle response and plenty of usable power on tap. Fast forward, we have some drivability issues
I have built plenty of 450-650 capable trucks and for the most part all have been happy. A few expect GT42/B code trucks to act like a supercharged high compression big block, I can get close but not as instant.
There are many many variables that come into play and have to be checked off one at a time.
I'll give you one example
I bad injector leaking compression gasses back into the fuel rails can cause alot of issues without ever knowing exactly which injector is at fault or even be enough of a problem for the average shop to even speculate that a injector is the cause...
I have exactly the same opinion as you do. The unfortunate part is that I'm 1,000 miles away (literally) from the builder and depend on this truck every day. I started a thread on PSN called "An honest opinion on high hp builds". Some took this as me bashing the builders/vendors that I used, but that wasn't the intent. The intent was to point out that these builds vary from truck to truck. Some get great builds, some get crappy builds, most get so-so builds with bugs to work out. It tends to vary by truck more than builder. There's no AHA!! that can be pointed to. It's these multiple, minor bugs that need to be worked out. I know for a fact that I've had injector, hpop, and fuel issues. Damn. Narrow that down. It would take a very good builder some time to work these issues out. I need my truck today. I can't afford a rental. I can't afford the time off to drive my truck to my builder and fly back to my job and rent a vehicle. I paid well over $20K to avoid these issues, only to confront them with a pissed off wife and a pissed of me. I now understand that this is part of the process. There will be bugs and there will be down time. That leads me to seriously question the reliability issue. My builder had the truck for nearly 3 months. I was in *****ia when the engine was built. 3 months + $20K should equal bulletproof. I don;t expect my builder drive the truck every day for a month or more, so the logical conclusion is that these builds aren't "reliable". They can get that way, but usually only after trial and error. That's nobody's fault. That's just the nature of the 7.3L beast.
Thanks a lot for that. I think I'm going to have to break down and buy AE. I could've bought it twice over for what I've spent getting shops to do it for me. That way I at least have some hard data to give to people who know what they're looking at.[/I][/B]
I think I posted this on PSN also, but anyway. Here is where the overall picture I think is a little misleading. Unless you happen to have the knowledge, facilities, tools etc... that HRT does you SHOULD expect these 'growing pains" on ALL platforms. I think to have 650 hp and never of had the valve covers off would be an exception NOT the rule. Just because its CR does not mean that this is the way things are going to happen. Ive watched quite a few guys spend 20K plus on 6.4s, 6.6s and 5.9s to still have something that they're not sure is quite the way it should be. On your particular build you are at a huge disadvantage not being able to diagnosis, wrench on, or datalog the things that need to be checked. I know you use your truck daily. I dont know if you have one, but a easy way to monitor a lot of things while driving is a scangauge without trying to look beside you at a laptop. You have most everything there to have a killer combo. I want to see you get this ironed out. Just please dont be one of these guys going around telling everybody " I wish I'd just put a cummins in it. Id have twice the Hp at half the cost and yada yada yada" because that is not the case. If you are ever in WV and can make it to my shop I will ride along, datalog, and give you my opinion for free. I am in no way an expert, but love to see you get it going.
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I think I posted this on PSN also, but anyway. Here is where the overall picture I think is a little misleading. Unless you happen to have the knowledge, facilities, tools etc... that HRT does you SHOULD expect these 'growing pains" on ALL platforms. I think to have 650 hp and never of had the valve covers off would be an exception NOT the rule. Just because its CR does not mean that this is the way things are going to happen. Ive watched quite a few guys spend 20K plus on 6.4s, 6.6s and 5.9s to still have something that they're not sure is quite the way it should be. On your particular build you are at a huge disadvantage not being able to diagnosis, wrench on, or datalog the things that need to be checked. I know you use your truck daily. I dont know if you have one, but a easy way to monitor a lot of things while driving is a scangauge without trying to look beside you at a laptop. You have most everything there to have a killer combo. I want to see you get this ironed out. Just please dont be one of these guys going around telling everybody " I wish I'd just put a cummins in it. Id have twice the Hp at half the cost and yada yada yada" because that is not the case. If you are ever in WV and can make it to my shop I will ride along, datalog, and give you my opinion for free. I am in no way an expert, but love to see you get it going.
Low and unstable voltage does some real funny stuff to these things.
Aerating oil is totally a concern on these things - but its likely not the HPOP that is your issues - its usually a result of the oil going through the HPO system - exiting the IPR and the injectors can induce air into the oil.
The truck has been varying in responsiveness. After changing the transfer case fluid, I drove it 20 miles back to work and back (40 miles round trip) and on the trip back, it felt VERY slugglish. On the trip there, I stood on it after turning onto a road and the truck absolutely fell on its face. All smoke and no go. I'm wondering if it's tranny, transfer case or wheel hubs. I put the truck in 4WD today and I'm thinking that might've been a mistake. My wheel bearing hubs are about shot.The crossover line isn't gonna do anything for aeration. It may or may not be doing anything at all depending on who you talk to.
Do you ever throw a p1211 code under WOT? How responsive is the truck when you are cruising around 2000 rpm? Can you give it a little throttle and get it to take off, or is it sluggish and smokey unless you gently roll into the pedal?
The truck has been varying in responsiveness. After changing the transfer case fluid, I drove it 20 miles back to work and back (40 miles round trip) and on the trip back, it felt VERY slugglish. On the trip there, I stood on it after turning onto a road and the truck absolutely fell on its face. All smoke and no go. I'm wondering if it's tranny, transfer case or wheel hubs. I put the truck in 4WD today and I'm thinking that might've been a mistake. My wheel bearing hubs are about shot.
The tranny crapped the bed on me yesterday. Luckily, I got back to Houston Friday nite. The truck will be at David's tomorrow morning.You need help
I completely agree. I think the truck will be in beast mode again by the end of the week.What better place to get the wrinkles ironed out. Good luck.