This is an area that seems that quite a few people might know about and i have yet to learn.the 6.9 has non turbo injectors in it and i am installing the ford fectory turbo that was on the original 94 engine and i am wondering if i should upgrade the injectors to turbo specs?thank you everyone for shareing your knowledge!

 

I didn't and my truck runs fine. Due to the high compression of the 6.9, you cannot run too much boost, but any boost wakes the engine up.

 

Not quite right. You can run up to about 12psi on a stock motor. More than that and you risk losing a head gasket, especially on a 6.9. Head studs will cure that issue. But then you'd need an intercooler to run any more, as the intake charge will start to heat up above 12psi and you'll lose power.

 

I think harleyjohn meant that you SHOULDN'T run too much boost. Not that it's impossible to run too much boost.

 

You're right, it could be read either way.

 

Just wanted to straighten it out.

I know you guys weren't going to get into a fight over it but...........
My Dad has four brothers and we all hunt together. One of them will say something, one of the others will hear it wrong and then they'll start arguing over it. I always step in and say WAIT!!!
He said "this" you heard "that".
I call them "hearing impaired arguments".

 

6.9 injectors are probably B or BB code.
7.3 turbo injectors are code G.

Code G has a slightly higher pop off pressure and delivers a little more fuel.

The new injectors may overwork the injection pump though.

Turbo injection pump numbers,
DB2-5069 for automatic transmission
DB2-5070 for manual transmission

So changing both could get a little spendy.

Bottom line, you can run the 6.9 injectors and be fine.
But you will not realize the full power you would from a turbo IP and injectors.


Did someone say something?
I don't hear to good anymore.

 

Thanks for all your input and i am comfortable with installing it now,and i wonder how to adjust the boost as you say,this might sound silly but i wasnt aware that there are settings on the system that can be fine tuned.i'm really impressed with the turbo design.

 

Stock turbo wastegates were usually "staked" so the rods were not adjustable.

A boost gauge is required before any adjustments are possible or even advised.

The 6.9 head bolts will not take much more than 12 PSI, 10 is even safer.

 

Out of curiosity, can you still buy the 94 style stock set up? If so it might be an option for me as the new ATS system is out of the question (even with my agreement with the little lady lol) since we are buying this house. I have looked for a set up at local yards but they seem to be rare.

 

Salvage yards are the only source, Ford has moved them to the obsolete column.

 

Dave you say 10 is safe, I have been shooting for 8, but right now under power i get 5 or 6. I am considering trying to crank up a couple more. Cruising I see 2 or 3.

 

Nobody has ever seemed to have a problem with 10.

 

ive been wanting to do this, what do you think the power increase would be with 10 boost? and do you recomend a pyro before installing a tubo at that boost on a 6.9?

 

A pyromoter is ALWAYS a good idea and at 8-12 PSI probably mandatory.

I'm not sure what the exact increase in power would be and there are a lot of variables involved but it is SIGNIFICANT and well worth it. Your "but dyno" will be impressed.