Turbo'ed 6.2 Questions

[Mattman2010]

I just picked up a Military 6.2L diesel from a guy. He also has the whole set up to put a turbo on it. I want to put a turbo on this engine, but I will wait a while as I want to get my truck running before I go about tearing the engine apart just yet.

What I was wondering is what do you have to do to the engine to turbo it besides the intake, exhaust manifolds, cross over, ect... I have heard that you do not want to run over 10 lbs of boost on the 6.2l. The guy said that the turbo is from a duramax and it is running more than 10 lbs, how do you keep the turbo from putting out to much psi?

Sorry but when it comes to diesels and turbos I am a newb haha

Thanks, Matt

[GmtGmt]

10 psi is the golden line for a 6.2 any above is pushing your luck

the only thing else is turn up the fuel delivery on the fuel injection pump

i woundt run the durascrap turbo i would get a Banks turbo charger or a old GM-3 unit from a 6.5 because they where made for these engine and will proberly be set at the right boost level

any question how to install can proberly be awsnered here
complete guide on how to install a banks turbo setup other then the hardware it should be the same
http://assets.bankspower.com/manuals/656/96291.pdf

[Stitch]

Check this link out. It's from the FAQ over at the diesel place. That's the site I get all my 6.2 info from. This link will tell you alot about what you need to do

http://www.dieselplace.com/forum/sho...d.php?t=332546
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[Mattman2010]

I think I would run around 8 PSI just to be on the safe side. So really all I need to do is put all of the turbo parts onto the engine turn the IP up some and it would be good to go?

As for not using the duramax turbo, the guy says you can change this part on it to change the amount of psi that it puts out. And I will be trading him a flat bed for all the stuff so I would just want to use what I have unless I can find a 6.5 turbo.

[SpeedyG]

I hear its good to run a pyrometer on the exhaust so you dont melt down.
might be safest route to set the boost and proper IP settings.
im a newb, so that should be taken into account I guess lol

[Shawn5488]

That is bad info, no pyro has broke off in the last 20 years, running the pyro in the exhaust is pointless and shows nothing. To raise or lower boost you simply turn the fuel up or down or use your foot to control how much fuel the motor gets.

[Stitch]

YOU honestly have no idea what you're talking about...EGTs will burn up a turbo motor faster than anything...how do you keep tabs on EGTs? You guessed wrong...the answer is a pyrometer...

[Mattman2010]

Stitch I hope that you do not mind me picking your brain when it comes to me putting this turbo on, you see to know your stuff. What do you think about using the duramax turbo? The guy told me it was a duramax turbo, but idk if it really is one or not. It might be off of a 6.5. But there is a small little "spring valve" on the side that he says is what changes the PSI.

The guy might be coming over Tuesday to look at my flat bed. If he likes it we will probably trade, and it will be a straight over trade. The guy knows exactly how he was going to hook it up to this engine and knows all of what he has, he told me the model of the turbo but I forgot what it was.

[68Timber]

I've read quite a few of 67 C-30's posts on steelsoldiers.com, seems like he's done this upgrade more than a few times. He should be able to help.

[Redcap]

Originally Posted by Shawn5488

That is bad info, no pyro has broke off in the last 20 years, running the pyro in the exhaust is pointless and shows nothing. To raise or lower boost you simply turn the fuel up or down or use your foot to control how much fuel the motor gets.

Don't know anything about diesels, eh? Best to just keep quiet then.

[Stitch]

Originally Posted by Mattman2010

Stitch I hope that you do not mind me picking your brain when it comes to me putting this turbo on, you see to know your stuff. What do you think about using the duramax turbo? The guy told me it was a duramax turbo, but idk if it really is one or not. It might be off of a 6.5. But there is a small little "spring valve" on the side that he says is what changes the PSI.

The guy might be coming over Tuesday to look at my flat bed. If he likes it we will probably trade, and it will be a straight over trade. The guy knows exactly how he was going to hook it up to this engine and knows all of what he has, he told me the model of the turbo but I forgot what it was.

I don't know much about the duramax turbos, but if there's a spring on a screw on the turbo or next to the turbo actually then that's most likely the wastegate and turning the screw tighter should tighten the wastegate and raise the psi and loosening it should lower it. I'm pretty sure on that without looking at it I couldn't tell you for sure. Unless the wastegate is added on and not factory then it might not be a factory turbo. It may be an aftermarket turbo. Most factory turbos were either controlled by the computer or internally wastegated and not adjustable. In both cases, there wouldn't be and adjustment screw. I may be wrong but that's been my experience. I'd really suggest going over to thedieselplace.com and posting a thread with your questions. There are a ton of people over there that know a whole lot more than I do
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[Stitch]

Originally Posted by Redcap

Don't know anything about diesels, eh? Best to just keep quiet then.

X2. Wrong info is so much worse than no info. If you know you don't know then pipe down.
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[Mattman2010]

I will just wait to see what I get and then go ask questions about all of the stuff. I dont think that there is a screw, and i am not really sure how to explain it.

[Stitch]

When you get pics, post them up in here...I'll see if I can tell you what it is...

[Mattman2010]

Will do! Thanks Stitch for the info so far!

[Stitch]

no problem man...soon I'm probably going to be starting on getting the permits and all for my shop building so I may not be on here much and I might miss this thread...if you pm me, I'll see it when I get on and I'll come check it out...

[Mattman2010]

Good luck with the business! I plan on doing business with you at some point when I get my crew cab where I want it haha.

I will send you a pm when I get it!

[Stitch]

good deal...I'll be here...

[Shawn5488]

You guys couldn't even figure out that I was referring to running the pyro in the manifold or up pipe where it is supposed to be and not in the "exhaust".


Running it in the exhaust is pointless, there is a 400* difference pre-turbo vs post and way to many variables.

Again no pyro has broken off and went through the turbo in the last 20 years.

6.2's hate life as is, adding a turbo makes it much worse, that motor really likes to melt pistons, got to keep it under 1250* at the manifold.

Next time I will spell out each thing I say so that you understand...

[Stitch]

You spelled it out just fine. You said that the pyro is useless which is bull****. You also said that you raise and lower the boost by turning the fuel up or down. That also is Totally wrong. You raise and lower the egts by turning the fuel up or down. You raise or lower boost by regulating the wastegate.

Once again, if you know you don't know what you're talking about then pipe down.
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[BIGCHEVYMAN]

You really don't have a clue about a 6.2.
I have never seen a melted piston in a 6.2.
If you had one that melted a piston it is because you ran your egt to 1250.
That is only about 350 to much.
Actually they like a turbo but you need to keep the boost at 10psi max and NOT run your egt to 1250.
I have a 6.2 with 200k on it and i limit my boost at about 8psi and i do m y best to not let my egt get over 900. it has happened a couple times but i hand no problems.

[Stitch]

He probably melted a piston because he doesn't believe in egt gauges. Remember they're useless LMFAO
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[GmtGmt]

Originally Posted by Shawn5488

6.2's hate life as is, adding a turbo makes it much worse

can you explain that?