6.7 Turbo on 5.9 ???
 

Has anyone done this? I was thinking of going to a salvage and picking up a Turbo off a newer 6.7 to do a "Bang for the Buck" type of thing. I was just wondering how much bigger the Turbo is and How much it would help.
I know I'll need to add more fuel as well and I was hoping someone with a little more knowledge would chime in on that too. Would the HR-VP44 be to much or can I get by with a stock VP44 and bigger injectors. Just need some advice, I'm new to diesels, Thanks!

Honestly bro, there is no point in doing so. The 6.7 has a VGT turbo, we are swapping 5.9 turbos onto 6.7's.

James
RSD

Yes, a VGT is a major upgrade from any wastegated turbo. The HE351Ve is an HX40.

How much power are you looking for? If you want over 400hp you should look into an HE431 from an MTA11 instead.

InsaneDomestics. I am with RSD on this one. Don't know why you would want to go that way... Will not make your 5.9 better.

Rhino.

That is blatantly false information.

i like my turbo on my 6.7 since i tow. exhaust brake is nice. most guys want a bigger turbo on the 6.7 for power though but i want the brake. thats the first button i hit after i start the truck.:tu:

The VGT will spool quicker than your stocker, and still make good power. From a driveability standpoint it would be a good mod especially if you tow. I've seen a 6.7 make over 550hp with the stock turbo.
The first thing I suggest doing to a VP truck is investing in a fuel pressure gauge to keep an eye on your lift pump. VP trucks are notorious for lift pump failures, which in turn kills the injector pump in short order. I would invest in gauges and then look into an airdog if you plan on making more power down the road. An airdog is about a third the price of a new injector pump.

lets not forget the control system to make the VGT function properly, sure you could probably set the turbo up so it might work kinda but most likely it will not work properly without some type of stand alone tuning of some sort

brayden from fleece performance engineering makes standalone controllers for the vgt turbos.

i'm not forgetting that, but last time i heard that was still in beta for the most part, correct me if i'm wrong

i dont think so, but you might want to ask brayden himself

yeah the controller is not out yet. some 6.5 guys are looking at it because of the driveablity of the vgt provides and the mass airflow it provides for a 6.5 making 300 hp. brayden is taking his sweet time though.

last october he said it might be out by thanksgiving. 4.5 months later we got nothing. they do have a beta version though. one of his shop employees installed a bigger vgt on his truck that sizes up similar to a HX50 so they have a controller but have not released it yet for the public.

The Delphi actuator on all holset's 2007+ Ve models are the same, so the controller should work for 351 (HX40), 431 (HX50), 551 (HX55) and 561 (HX60) models.

The 341 (HX35) just uses a 12vdc motor and TPS, a monkey with half a brain could program for that. Older V models just have a 120psi air actuator on a lever.

I talked to holset themselves. I wanted to put a VGT off the 6.7 as my small turbo in a compound setup for my 5.9. He said it is a good idea but bad as far as trying to get the right electronics to run the vgt. He said the vgt turbos are ramped up for certain engines only and anything you do as far as performance adders affects the end results for the vgt turbo - usually not in a good way. Until someone makes an user adjustable vgt controller it is not worth it. Really I was dreaming of someday a dual compound vgt 1 Both the large and small turbo. But what a nightmare as far as ramp up times, speed, and duration. He said my idea could be valid, but for the backyard mechanic that does not have the millions of dollars of testing equipment - NOT WORTH IT! He said a set of compound like a hx40 - ht3b setup spools faster than a single hx35, lower egt's, more boost and horsepower. A win - win for multi-purpose trucks like most of us have.

Sounds like the guy you were talking to was either a parts swapping "technician" or a parts desk "technician". A VGT in a compound setup won't function any different than a wastegated turbo, it will just spool up a LOT faster. Replacing a wastegated turbo with a VGT is one of the single best upgrades for any diesel. I've done it to both my engines and both times its made a night and day difference in performance, even with stock fueling.

I seriously doubt anything with an hx40 can spool up "faster than a single hx35". Even the 6CT takes its time to spool that up.

James at RSD is right
Yes we are swapping the turbos for 5.9 turboes the other vgts where not a cost eff. way of making more power to me but I have heard rumors of some guys swapping them onto 5.9s ,but I would still guess you are going to have more $$$ in it than you would a good single fixed turbo anyhow just my .02. the stock vgt was to restrictive for my taste and my silver bullet spools just as quick on my truck as stock

Then put an HE431ve from an ISL in its place. All you would have to do is change the turbo map in the computer.

ok the 6.7l ecm is very hard to screw with though so still not really a good choice however on a 5.9 you would need a controller which in the end is going to cost more $$$$

You're willing to spend quite a chunk on a turbo, whats another $400 to have the best system?

Believe the whole point was to try to do it cheaply. Pick from A wrecker and just slap it in. So for the money not a better solution. And A straight swap of the 6.7 unit into the 5.9 is not A good cost effective up grade. To much trouble for truly no likely noticeable gain. Way better options that can be done cheaper then this route. Good luck.

Rhino.

That is pure ignorance.

i believe the controller from fleece is out now. and i believe its around the 500 range. i know once my buddy upgrades his 6.7 turbo i'll be buying his stock setup for mine.

I agee the only thing you might notice is a little more bottom end

A "little"? No, VG turbos make a night and day difference in torque and performance.

a bigger vgt maybe and I still believe the 5.9 will run into the same problem as the 6.7 as far as for big power its not going to be what you want

Do you ever have anything constructive to add to threads? or is it your goal in life to troll and stir the pot? What works best for some folks, won't necessarily be the best choice for others.

ETXBlueRam.. Don't worry bout ol' FI There. Just check his sig. That be A ol' Mercedes car that he is driving. Not exactly A current model.... And I have seen pics of the butcher job he did building that little motor up. Somewhat less then A clean job. And I hurt his feelings A while back was pretty funny. So he thinks he is picking on me... No worries.. Have A couple:c::c:

Rhino.

With such a completely useless post as that, you are the very definition of a hypocrite. Congratulations!

Now scurry off while the adults with actual VGT experience talk shop.

Really actual vgt experience well let me explain something to you EtxBlueram has actual vgt experience he the one that helped me pull mine off do you even own a cummins so I guess what I am asking is do you have any actual cummins experience because we are far from a mercedes or what ever it is you drive. The bottom line is if your after big horse power VGT turboes suck and are not worth the effort to put on you can keep your 351 vgt turbo that you say is so great well let me tell you I have ran one and they suck compared to the fixed turbo I have now my egts are down and I will spool just as fast or faster than the vgt

Coming from from a professional troll, that really means a lot. Thanks. :tu: In your case though I think VGT is an acronym for Very Good Troll....Have a nice day. :c:

Those of the lowest intelligence resort to name calling and insults when their beliefs are questioned. Because they are incapable of forming A reasonable argument to support their beliefs. Have A great day gents. And don't let the FI's of the world get to ya.

Rhino.

The 6.7 turbo has the same size compressor housing as the he351 IIRC. But you can (with the fleece controller) use the nozzle to close down to some 5cm up to 21cm (again I'm trying to remember these numbers from 2 other forums that posted this info). There's no reason that a he351ve can't stand up to the same abuse people put on their stock non vgt turbos. If you have big injectors and lots of tuning you wouldn't expect your turbo to work well for you, BUT if you run just a programmer (edge, smarty, tst etc) then I believe this would be a good turbo. You gain an exhaust brake via Fleece controller, even faster spool up then a stocker with possibly better compressor map for a 5.9.

Remember a he351ve was designed to work best for an engine thats nearly a full liter bigger then a 5.9. So I don't believe drive pressure will get any worse then the 9cm housing on current 351 or hx35 turbos. Especially with mild aftermarket goodies.

As for more fuel...just get a good programmer. As long as you have gauges (boost and pyro) and some aftermarket lift pump to keep your VP alive and you should be ready to rock and roll. :rocking:

BTW, he351ve won't fit standard T3 flanges so you need either an adapter or to plug and drill new holes on the turbo to make it match your stock manifold

this is pretty much all I was trying to say for big numbers not the right turbo I glowed mine red :scare2:before I switched to the turbo I have now

Silvrcummns. Good post. With some good info. And that all being the case. Is still not what the original question was about. And the same stands true. For the money the guy would have to spend to make the turbo out of the 6.7 work in his 5.9 in A straight swap is not really the most viable route. He was looking for A cheap straight across trade up. Get one from A wrecker and slap it in. And the point still is that comparatively the extra he would spend on A controller and such. That it is likely not going to do what he wants. Or within the expected budget. If he was looking to spend all the money on A new turbo and A controller and such then that likely would have been the spirit of the original question. And I am in the middle of sorting out heat issues in my 09 with little really for add-ons to it. Can only consistently run low levels of tuning without trying to melt the turbo out. Among other things.. So is not much of A step up for the cost he would have to incur to make it work. And thank you for putting up A good post that has good info to back it up. :c:

Rhino.

Ok. I got caught up in 2 pages of holset turbo swap. BUT I will reply to the first post. ASSUMING you have some aftermarket lift pump, and gauges. Get a good programmer or stack 2 togethor. If you think you need a bigger turbo then look for a turbo from a 3rd gen (04-07) 5.9. Depending on the year will make a difference for the wastegate. The early 03-04 have a HE341 which has a more standard diaphram wastegate while the later HE351 has an electronic one. The 351 wastegate it more efficient but you would have to rig up a normal wasegate.

As for bang for your buck turbo's and whether you need more fuel you're getting on a slippery slope where money gets spent fast. My personal opinion is use prgramming to make more power. When your funds allow a new turbo or 2 then worry about bigger sticks and different vp's or p-pumps.

Let me explain something to you. If you actually expect to be taken seriously, a decent grasp of English with punctuation is necessary. :moon:

HA! Yeah, okay, sure, if you say so. :nope:

What are you talking about, Rhino didn't post it.

Aw, how cute, hes trying again. Keep it up!

Exactly, proper matching. Nobody ever said this turbo will be good for pushing 800hp. There are a dozen different VGTs to match anything from 50hp (GT1444V) to 700hp+ (HE561Ve), its up to the user to select the right one, but whichever one is chosen it can be assured to spool up far quicker than the same size wastegated turbo.

The 2008 L10 engines in the Gilligs I work on can spool the turbo up to 16psi and 85,000rpm just revving the engine to 1400rpm in neutral! Lets see your wastegated turbo do that!
https://www.dieselbombers.com/attach...-picture-2.jpg

No, they use the same wastegate. The solenoid is used to block and modulate the signal to the wastegate to achieve higher boost pressure.

Why in the world would anyone want to downgrade from a VGT with a 21.5cm turbine housing to the exact same turbo with a fixed 9cm wastegated housing? :humm:

Ha your actually trying to insult my spelling and grammer I'll give you that I am from texas after all ,but as far as the turbo spooling as fast or faster on my truck all I have to say is the proof is in the videos and I dont know of anyway to test it better than that it still spooled faster than the stocker dont really care if you believe it or not I have the evidence to prove the fact.

Keep on comeing FI. Make yourself A greater Shizzass... I like how when you can't argue with me at all you just revert back to your supposed ignore list. :c:

Rhino.

I would honestly say not to go that way ya you are gonna get is faster spool but I would spend money on a fass or air dog or some sticks! And upgrade turbo down the road!

i dont know why you guys dont like the idea of a faster spooling vgt turbo. no it wont support a ton of hp but it is far better than stock