Question for Innovative

[George C]

JUST TO LET EVERYBODY KNOW WE HAVE SEEN SOME RODS GO AWAY ON 6.4 WITH SOME OVER FUEL PROBLEMS WHEN THE INJECTORS FAIL IN THE DISCHARGE....... FORD IS LOOKING FOR ANY REASON TO CANCEL WARANTY REPAIRS WE HAVE HAD LOTS OF INFO COMING FROM THE COMPANY.....
i WOULD GO EASY ON THE HOP UPS INTILL WE HAVE THE BASE FUEL SYSTEM RIGHT..... THE SUPPLY TO THE HIGH PRESS PUMP IS JUST 3 PSI AND 1/2 PSI LOSS IN PRESS CAN TAKE OUT THE PUMP AND MOVE TRASH INTO AN INJECTOR AND IF THAT INJECTOR FAILS IN DISCHARGE IT WILL HYD A CYL AND TAKE OUT A ROD. ANY MODS AT THAT TIME WILL VOID YOUR WARANTY

My question obviously centers around the supply to the high pressure pump.
Is this pressure factor considered, examined and stabilized with the SCT tune?

Thanks very much.

[gahanna-6.4]

Innovative: I'm told they do not increase the pressure but rather massage the pulse width and pulse timing. Can you also confirm?

George C: Where did that info come from? Sounds very strange that the supply is only 3psi, I almost don't believe that. If the injector clogs/fails then how could it hydraulic a cylinder? Unless they are saying that it increases the fuel to some other cylinder which causes it to hydraulic lock...... But then again these are common rail... wow, Im lost.

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Last edited by gahanna-6.4 : 05-17-2008 at 03:56 AM.

[George C]

Originally Posted by gahanna-6.4

Innovative: I'm told they do not increase the pressure but rather massage the pulse width and pulse timing. Can you also confirm?

George C: Where did that info come from? Sounds very strange that the supply is only 3psi, I almost don't believe that. If the injector clogs/fails then how could it hydraulic a cylinder? Unless they are saying that it increases the fuel to some other cylinder which causes it to hydraulic lock...... But then again these are common rail... wow, Im lost.

I'm lost too, but it appears the 3 lb supply is to the pump, not the injectors. It seems the pump supply pressure is extremely critical.
I got it from here:

Innovative tunes, 500rwhp? - Page 2 - Powerstroke Nation

I know there are no guarantees, but the decision to kill off the warranty on a 15K engine makes me want to cover these topics.
Innovative seems to be the most respected and knowledgeable voice on SCT tunes. Hopefully, he can shed some light on this topic and teach us something.

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Last edited by George C : 05-17-2008 at 05:15 AM.

[gahanna-6.4]

Hrm... lets dissect this:

(1) he is a first time poster
(2) his nickname is SrMasterFordTechnician, (I mean.... really)
(3) his post is right in the middle of a pro-innovative 500hp announcement thread.

Looks fishy to me. It smells of someone trying to keep people from buying Innovative's product/tuning... doesn't it?

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Last edited by gahanna-6.4 : 05-17-2008 at 05:20 AM. Reason: speeeling.

[George C]

I believe it's a simple question that should be asked, and probably has a very good answer coming from Innovative.
Why try to come up with a reason for questioning the author?
Let Innovative question the authenticity.

[07stroker]

Can those injectors push enough fuel to actually hydro-lock a cylinder....if they can thats impressive. I mean wasn't the flame thrower in the early 6.4's caused by a leaking injector or stuck open injector or something like that??

[RedMule]

Guys, I will openly profess to knowing almost zero about the 6.4's. With that said, I have been doing some reading and research on them as I have considered strongly buying one. I also read the aforementioned post on PSN. It doesn't look to me to be that far-fetched of an idea to have and injector hang open or nozzle problems that could put enough fuel into the cylinder to hydro lock it. I know with the 7.3's that if you pull an injector, you should pull the glow plug and roll it over a few times to get the liquid out to ensure you don't hydro-lock it.
On another note, I was at one of our local dealerships yesterday and talked to their diesel expert about what kind of problems he was seeing with the new 6.4's. He said something that was interesting to me. He told me that he had recently had to replace the entire fuel system on a truck that the owner had filled with gasoline to the tune of $8k worth of repair bill. Ford did not pay as this was caused by the owner. He did say that the owners insurance company did bail him out. I'll bow out now, and continue to watch and learn.

[DKR]

Sorry I can't help ya much with the 6.4 stuff, but just wanted to let ya know I sent this thread to Eric (IDP) and hopefully he'll be able to respond soon.

[George C]

The way I read this thing, it's not about the injectors causing a problem, it's the pump failing under inconsistant feed pressure, and the chain of events that follow...
If the pump has any inconsistancies in pressure (3 lbs), the pump itself will begin to fail, and the debris from that resulting failure is what the injector will be digesting, and then failing itself. Then, the damage of hydrolicking is the end result.

The problem is this, if Ford has a book on this type of situation, they will follow it right back to the owner's use of a tuner.
If SCT or any other tuner has taken this pump feed pressure variable into consideration, and has taken steps to make sure the pump line pressure remains totally consistant within stock parameters, we can all rest easy. If this particular situation has not been considered and addressed, there is a potential catastrophic problem just waiting to happen.
And I guess I don't have to tell you who will be holding the bag....

[RedMule]

Originally Posted by George C

The way I read this thing, it's not about the injectors causing a problem, it's the pump failing under inconsistant feed pressure, and the chain of events that follow...
If the pump has any inconsistancies in pressure (3 lbs), the pump itself will begin to fail, and the debris from that resulting failure is what the injector will be digesting, and then failing itself. Then, the damage of hydrolicking is the end result.

The problem is this, if Ford has a book on this type of situation, they will follow it right back to the owner's use of a tuner.
If SCT or any other tuner has taken this pump feed pressure variable into consideration, and has taken steps to make sure the pump line pressure remains totally consistant within stock parameters, we can all rest easy. If this particular situation has not been considered and addressed, there is a potential catastrophic problem just waiting to happen.
And I guess I don't have to tell you who will be holding the bag....

I think I agree with everything you are saying. That's the way I read it also.