NB6766V - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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post #1 of 44 Old 09-21-2013, 06:15 AM Thread Starter
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NB6766V

So with all of the recent turbo talk about folks searching for the "perfect" VGT turbo for 175/75 injectors, I decided to try and build a turbo based on some similarities that I noticed from (what seemed to me to be) "higher than normal" HP rated non-VGT turbo options. I had to have a custom billet wheel made as well as a couple of different turbo parts to make this turbo work. Nevertheless though, the testing so far seems to be going VERY well and this turbo has far exceeded my expectations for performance from a 10 bladed GT37 turbine wheel. The long and short of it all is that this turbo uses an ~67x88, 11 blade single plane, compressor wheel and a 10 bladed, GT37 turbine wheel and is dubbed the "NB6766V" for now.

So far, I have been driving my truck with this turbo on it now for just about 2 weeks. My tune that I am running is Eric's Xtreme X that I had written for the Stage 3 (LOTS and LOTS of fuel) and I haven't bothered messing around with any revisions with it so far. Cruising on the flat ground with this turbo at 70 mph, my boost is about 4 psi and my EGTs are 690-720F; cruising at speeds of 45-55 mph, my EGTs are about 550-600F; and at speeds of 40 mph and under, my EGTs are usually below 500F. This turbo runs about 2-3 psi less EBP under cruising and acceleration conditions (I haven't been able to watch EBP on WOT yet as well as smoke due to traffic). At WOT, I was able to get the turbo to hit 42 psi and hold 39 psi of boost, where with the exact same tune and the MadMax, I was only able to hit 34 psi of boost. Furthermore, at every boost PSI that I checked, this turbo had a higher MAF reading than either the MadMax that I tested, the Hybrid, or the Stage 1 (never did MAF readings on the Stage 3). I don't believe or trust MAF readings as far as knowing how many lb/min or gm/s of air I'm moving, but I do use it for seeing if I am moving more or less air than other turbos. My EGTs at WOT were 1490-1500F. With the Stage 3, my EGTs were 1470F on the same tune at about 39-40 psi of boost (as that was about all I ever got from the Stage 3 and this tune). The MadMax really ran out of air up top (as shown by the dyno results from Adrian) and yielded EGTs of 1650F at the same speeds.

Here are some pictures of the wheel. Since this turbo most closely resembles the MTW Stage 2 turbo, that is what I am comparing it to. The first pic here is the cast wheel of the GT4088/Stage 2 turbo.


Here is a pic of the billet wheel used in this turbo.


So the next steps for this turbo are to see what sort of power level can be had from it as well as some different turbine wheel options (bigger turbine) to see how that changes the performance of the turbo. If I can get some better weather here and some more free time, I will update this thread with EBP numbers.

As of right now, this turbo is ONLY a prototype. We still have a ways to go with it in terms of gauging it's performance, longevity, and parts availability. However though, I am simply blown away (no pun intended ) by the performance potential exhibited thus far by this little turbo with my 190/100s and it has made my truck an absolute pleasure to drive. The MadMax was a blast to drive too and I didn't think low end power and response could get any better, but I have noticed no low end power loss and have definitely gained air flow through out the entire RPM range (as indicated by the lower EGTs). How much did I gain?? Only a dyno is probably going to be able to tell me that. Nevertheless though, I feel like I finally have a turbo that can really have a chance being used to tow heavy with my 190/100 injectors. I think that as long as this turbo produces solid dyno results, it should be an AWESOME little turbo.

Nate
2006 F350 (BACKYARDIGAN) - 67mm Turbo, 215/85 injectors, WPE intake manifold, NB/Warren Trans, and more stuff that I don't care to mention....
2006 F250 (LITTLE DURTY) - WPE Manifold, Up-pipes, EGR delete kit, and Tuned By ME
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post #2 of 44 Old 09-21-2013, 06:20 AM
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Hope you have good results with this.

RYAN
03 Excursion 6.0L

BPD,WPE & other odds and ends
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post #3 of 44 Old 09-21-2013, 06:37 AM
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Crap, I should have just waited a couple hours instead of buggin you about it all last night haha. Good luck with it man, anxiously awaiting dyno results. Also curious to see how the mad max revisions go, and how the NB will run with larger turbine wheel.



2005 F-250 Harley Davidson Edition

Warren 205/75 Injectors
KC Turbo 71mm VGT
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Yukon 4.30's, Detroit Locker


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post #4 of 44 Old 09-21-2013, 06:46 AM
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Nice!!!! I love new turbos!

Good Job Nate!

KC Turbos kcturbosinc@gmail.com
Warren Diesel Dealer
My Current Build Thread http://www.powerstroke.org/forum/6-0...ml#post7528746

Current Setup 190/30 and KC 64mm Stage 2 turbo
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post #5 of 44 Old 09-21-2013, 09:12 AM
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Sounds awesome.Great Job!!

04 350 DRW CC LB,4:10,245/75/17,tires 4X4.MBRP Duals.Coolant filter. CTS.Stage II AFE.EGR Delete,Zoodad ,regulated return, ,Arp,OemHG,AD150,WPE ported int,58FICM,190/30 Injec,05 coil conversion.WPE/KC 1.5 turbo,2011 rear leafs,13 tailgate,flight fab trac bars.2014 Power/folding/Extend mirrors.



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post #6 of 44 Old 09-21-2013, 09:19 AM
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Awesome Nate! Sounds like its working really well. What do you plan on doing once you are happy with the turbo after further testing? Will you build them for guys or will it be part of the MTW lineup?

2004 F-350 SC 4x4, XLT, 4" dual Magnaflow, AFE intake, No Limit piping, spearco intercooler, water injection, ARP studs, hypemax o-ringed heads, SCT tuned by Innovative Diesel, tuned FICM, Hellman's sump, FASS, Fuelab, regulated return, 190/75 injectors, KC/MTW 68 w/.72ar, suncoast trans w/billet input, edge insight CS with dakota digital gauges, amsoil by-pass, BD exhaust manifolds
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post #7 of 44 Old 09-21-2013, 09:30 AM Thread Starter
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No plans yet Chris. Too many things are still uncertain about this. I just couldn't resist sharing the results I found. At first I didn't believe my EGT probe in the dash boss so I installed another probe for an actual electronic gauge to verify it.

Nate
2006 F350 (BACKYARDIGAN) - 67mm Turbo, 215/85 injectors, WPE intake manifold, NB/Warren Trans, and more stuff that I don't care to mention....
2006 F250 (LITTLE DURTY) - WPE Manifold, Up-pipes, EGR delete kit, and Tuned By ME
BULLET PROOF DIESEL 1-888-967-6653
KC TUROS - Not just a modified Powermax...

WINDRUNNER PERFORMANCE ENGINEERING
WWW.WPEDIESEL.COM

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post #8 of 44 Old 09-21-2013, 10:42 AM
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Is this close to what we talked about building for my truck a while back?

03 cclb dually,6.0,arp studs,bpd oil cooler,bpd 6 phase ficm,bpd water pump,bpd all aluminum cac,all aluminum radiator,amsoil bypass oil filter,ipr high flow coolant filter,egr delete,livewire ts tuned by Vivian & tony,php ficm tuner,dc power 300-spx,Detroit trutrac,6" dual side pipes,07 front end,custom front bumper,shaved badges,led button roof lights,08+ mirrors,12 tailgate,13 rear bumper,13 tail lights,dropped I beams,custom rear 4 link w/bags,k5la train horn,24" alcoa's.
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post #9 of 44 Old 09-21-2013, 10:55 AM Thread Starter
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Sorry man. I don't remember what we talked about building for your truck. You can shoot me a PM and we can talk about your build more if you'd like but there is still A LOT to be done with the testing/proving of this turbo and even then, I don't know if Adrian will want to offer this or not. I'm not planning to become a turbo builder. It was just a fun experiment to see if my theories were right or not and I wanted to post up about it.

Either way though, I'm sure we can step ya through your build if you'd like.

Nate
2006 F350 (BACKYARDIGAN) - 67mm Turbo, 215/85 injectors, WPE intake manifold, NB/Warren Trans, and more stuff that I don't care to mention....
2006 F250 (LITTLE DURTY) - WPE Manifold, Up-pipes, EGR delete kit, and Tuned By ME
BULLET PROOF DIESEL 1-888-967-6653
KC TUROS - Not just a modified Powermax...

WINDRUNNER PERFORMANCE ENGINEERING
WWW.WPEDIESEL.COM

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post #10 of 44 Old 09-21-2013, 11:00 AM
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Yea its been a while (before you were with mtw)Basically what we talked about on mine was a 03 turbine side with a billet stage 1 compressor. But I didnt think it would support 175/75's

03 cclb dually,6.0,arp studs,bpd oil cooler,bpd 6 phase ficm,bpd water pump,bpd all aluminum cac,all aluminum radiator,amsoil bypass oil filter,ipr high flow coolant filter,egr delete,livewire ts tuned by Vivian & tony,php ficm tuner,dc power 300-spx,Detroit trutrac,6" dual side pipes,07 front end,custom front bumper,shaved badges,led button roof lights,08+ mirrors,12 tailgate,13 rear bumper,13 tail lights,dropped I beams,custom rear 4 link w/bags,k5la train horn,24" alcoa's.
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