difference between powermax turbo and stock
 

What is the difference from my stock turbo I have on my 2004 6.0 and the powermax turbo?

Garrett GT3782V- 2003-2005 Ford 6.0L PSD

Compressor wheel Inducer: 58.00m
Compressor wheel Exducer: 81.55mm
Compressor housing A/R .58
Turbine wheel inducer diameter: 72.25mm
Turbine wheel exducer diameter: 66.45mm
Turbine housing A/R .9 A/R


Garret powermax GT3788VA:

• Compressor Wheel Inducer: 63.5mm
• Compressor Wheel Exducer: 88mm
• Compressor Wheel Trim: 52
• Turbine Wheel Inducer: 72.5mm
• Turbine Wheel Exducer: 66.5mm
• Turbine Wheel Trim: 84
• Turbine Housing: .90 A/R

http://www.turbos.com/uploads/8/1/0/...377947.jpg?343

is there any way i can do these upgrades to my stock turbo or is that not possible? Might be a stupid question just curious

How does the Powermax compare to the Batmo-wheel? For the price, a Batmo-wheel seems to be the way to go. But my knowledge of turbos is about the same as my knowledge of quantum physics.

Above all else, does the Powermax scream like an 03 turbo? I'm not giving up that scream for love or money.

Powermax does scream like an 03 turbo

No. The only upgrade you can really do to a stocker is put the "batmowheel" on. Supposedly you will drop EGT's and pick up a little power. The wheel alone is $400. A new powermax is about $1150 shipped. Some a little more, some a little less. I'm doing research right now on a different turbo setup that is in the works right now. There is a guy taking a stock 6.0 turbo and combining them with a stock duramax turbo. It's using the hot side of the powerstroke setup and the compressor wheel and front housing from an LLY I believe. I'll post more info as it becomes available in a separate thread. Sounds interesting though. I will say, even if it does work it will probably still be quite a bit more $ than the p-max. The powermax will require some tuning changes if you do go that route, just keep that in mind. An SCT will be needed if you don't already have one.

Some say the powermax actually screams louder than the 03. No worries there. I'd imagine a powermax would out-do the batmowheel stock charger. You can also get batmowheels for the p-max. There are also a few companies modding the p-maxes now. RCD is turning them into 68mm chargers, and I believe Elite has a modded p-max now that is like 66mm or so. Some interesting things coming out for the 6.0 world, which is good to see.

You dont have to imagine, a batmo'd stocker is not going to flow the same or close to a powermax, powermax is bigger period. Mdub im also watching Mad's write ups on the durastroke turbos but the only one I would want is the big charger hes working on. I dont see much of a point to the smaller lly stock ones, IMO I would rather go with the proven powermax and keep the stocker as a backup

The powermax really isn't that big of a step up from the stocker, despite the measurements. Will it flow a little more? Yes. How much more? Well the map is right there... it's not a "huge" step up by any means, but is a good turbo for the guys with stock sticks and hot tuning up to a 155, maybe a 175. I think 190's are too much for a p-max, and you'd have to pull fuel, so what's the point?

coletrain, what are you running for injectors? The small durastroke charger should outflow the powermax from what I'm seeing... but time will tell. Those larger chargers are certainly interesting for the guys with bigger sticks.

All the claims out there say the PM "runs out of air" up top. I doubt a smaller DM will outflow the PM up top. Besides everyone is forgetting the intake manifold and cam shaft. Both parts are BIG players to performance.

I for one can tell you on an OEM manifold the PM does have a bit more lag then the stocker. Drop in a Stage 1 manifold and there is NO DOUBT what is preventing airflow on the 6.0L. It's an undeniable difference in how much better the turbo spools and the motor responds when using the GOGO.

Brainfart here maybe, but DM??? I don't see the cam as a limiting factor really either, though it wouldn't hurt. I'm actually looking into colt cams right now for when I tear into mine in the next few weeks here. Supposed to make the drivability much easier, but Ellerton was running the stock cam for quite some time. Tried an Elite cam, couldn't get squat to spool, took it out and went back to stock last I knew. Stock cam @ 1200rwhp or whatever it is says a lot. The intake manifold is a HUGE restriction though, you got that right! There is also another player on the market with intake manifolds now. I'm seeing guys selling their GoGo units for the new Apex manifolds from Absolute Performance. Interested to see how those do. I am probably going to try and make my own though, got a spare intake manifold laying here and a bunch of machinist friends...:c:

I am watching the Durastroke development also and I think the guy is on to something, is it the "miracle pill"? I dont think so. I think everyone is always hoping for that new mod or product that will redeem our 6.0s. We need to just accept that our engines are more or less the redheaded stepchild of the diesels. Can you get over 1000hp? sure if you have the money, alot of money. Are you then going to drive said 1000hp moneypit back and forth to work and Walmart every day and then hook up the toybox for a camping trip up to the mountains for the weekend? I doubt it. This is a limited short term production engine and the aftermarket is not going to be spending money for new R&D and production for the 6.0. Custom tuning was the best big thing for us and it was the best bang for the buck. There was never any good "affordable" turbo options until the Powermax and I think the hype overshadowered what it really was, an affordable drop in replacement for the stock turbo with a "little" more air. Like I said I think there is merit to this guy and his Durastroke turbos, but and there is always a but. He is basically one guy tinkering in his garage, will he be able to take it to a production level? How will the quality hold up? There is already a bunch of guys jumping on and wanting his turbos and I dont think one has been on a dyno or to the dragstrip for 1/4 mi times yet. I for one hope he is able to prove his turbo out and get to a point to make them available. For now I will just be watching.:pca1:

DD'ing any diesel with 1000hp is no easy feat, no matter what brand. Some claim it, very few do it.

Agreed. What I was getting at is alot of guys get hung up on ever bigger numbers and dont realize there is a tradeoff involved. We are good with custom tunes and exhaust to a little better than 400hp after that we had an expensive gap that calls for bigger injectors which need more turbo without good dependable options short of twins if you still wanted to tow. Until the powermax and now maybe this durastroke.

Im running stocks, when they give out will be going AD2 with 190s. So ya I never wanted a powermax but the 68 modded Pmax is probably what Im going with. They seemed to fix the surging issues and that turbo si good for over 600hp which I dont really want to go over anyway.

A few things have come out in the last few years that have helped us tremendously. One, modded intake manifolds. They make spool up SO much easier for those chargers we could never DD before. Also, the BD diverter valves. Expensive, but worth their weight in gold. They are another item that has allowed the 6.0 crowd to setup up charger size while maintaining drivability. And of course, tuning is ever evolving for us, with more and more options all the time. It does get expensive after a tuner/intake/exhaust, for sure though. Unless you just strap on a big blue bottle and a tune change...:yeah:

You could always run the p-max for the time being, and when you do upgrade sticks send the p-max in for the 68mm conversion...

DM= DuraMax

The cam plays a part not necessarily the answer to the problem.

So, what can I do about surging?
I have a PMax turbo with SCT SRL tune.
As an example, when I'm cruising along the highway at about 50 MPH and I encounter a hill, if I keep the accelerator steady, the truck bogs down, starts blowing black smoke and then surges forward. The rpms climb and the smoke clears, but not for a couple of seconds of lag.
This symptom exists at a wide range of speeds.
I can push the accelerator down early before I encounter the hill, wait for the rpm to rise and the transmission to downshift. But, this is not ideal. The truck should be able to power up the hill with the accelerator kept steady. It should downshift without the rpm's bogging down.

The powermax produces a lot of horsepower once you get the rpm's up past about 1800....it's pretty boggy and smokes below this.

I had the same issues with my PM. I installed a GOGO Stage 1 manifold to resolve the problems. Turbo spools nicely, power is smooth and doesn't bog on the hills.

Maybe some custom SCT tuning could help as well.

Did you get your tunes updated AFTER the install of the PM? Everything I've read about surging or lag issues with the p-max has been fixed with tuning.

Yes, the tune was custom for everything I have, including the PMAX.
I haven't gone back to the tuner with this information yet. I wanted to understand what others are seeing before I did so.

Initially I didn't change my tuning for the PM. Other than the hills I had no issues with the tuning I was using. Since adding the GOGO I have stepped up to the TSD SPD tuning with excellent results.

Definitely contact your tuner, this isn't the first time someone has had these issues with the powermax. I've heard it's a little tricky to get tuned just right.