L5P 2nd Update: Turbo Details

Nick Priegnitz of DuramaxTuner.com walks through the air flow of the 2017 + L5P Duramax. He walks through the EGR, up-pipes, M-pipe or y-bridge, and of course does a complete tear down of the L5P turbo charger.

[@GrandPrix46]

Liking my LB7 more and more as time goes on.

[@jamesyork6023]

Thanks for another great video Nick! Between DuramaxTuner and Gale Banks, I think I’ll be buying an L5P in the coming years. Seems like a reliable platform so far compared to the LML. Hopefully the tuning and deleting process will get simpler and more cost effective as the aftermarket releases more and more products for these things!

[@ronmower3694]

Best info.great job as always nick

[@ToXSicK1340]

FANTASTIC VIDEO..... Very informative, Thank You!!!

[@grantglashagel9822]

Delete, tune, turbo and trans is what I see making this truck bulletproof.

[@ImnotaCrook]

Turbo needs a twin for help!

[@90zr1]

You said the limitation is the heat so safe is roughly 550 could you push the turbo more with the cat deleted

[@Duramaxtuner]

The "cat" or DOC is not the limiting factor to the turbo. At least at this point we don't believe it is. More than likely the small compressor wheel and turbine wheel are going to limit how efficiently the turbo can make cold air.

[@rsdna9698]

The only thing i care about on my L5P is getting the EGR & DEF off the truck asap

[@mattreb5748]

RSD N/A , just to do all of that will cost 5grand on a l5p. better to stick with a lml or just wait a few years. I'm sure prices will come down gradually. I will only by a l5p duramax if itbwas possible to delete it for under 3grand for everything.

[@rsdna9698]

@@mattreb5748 I agree, and had I known, I would have done just that, but unfortunately, while looking for a well-used lml, I veered off track and bought a brand new l5p in 2017 ;/ I will just have to wait it out.

[@fernandolopez-mu1yz]

Serial data module will be hard to put a programmer on it. Will shut the system

[@rsdna9698]

@@highball7347 Luckily I haven't had any issues, love the truck.

[@Duramaxtuner]

@@3DProductions well the SCR is mounted to the back of the turbo (we did a L5P turbo review you can watch) so that takes a several hours to remove the turbo, most people with a $60K + truck prefer to a really nice EGR delete which is a lot more than a few block off plates, and the cost of L5P Tuning is (for delete or non delete) over $4,500 without core charges. Due to EPA restrictions we do not offer any deletes. The LML is still a strong platform that is going to fit a lot of peoples needs. For those with an L5P that would prefer to keep their emissions equipment intact and still want all the benefits of tuning, we can help.

[@truckguyjoe]

I've noticed every time I shut my L5P off, the veins open and close about 4 times...wonder if GM did that to keep veins from sticking. My LBZ would often throw a code for the vein position sensor.

[@Cobruhh93]

truckguyjoe Yes they do this to keep the vanes free, as well as checking proper calibration. The L5Ps also cycle the vanes when you open the drivers side door

[@truckguyjoe]

Preston, you know I've heard that too...when you open the driver's door.

[@Cobruhh93]

Yep if you pop the hood you'll see the arm cycling back and forth.

[@Trident_Euclid]

That's very good feature to have.

[@six0bros]

Some really cool stuff for l5p owners.

[@rydog233]

You alway have a lot of great information thanks

[@rsdna9698]

No one is going to want to retain the EGR , delete it EGT's fixed?

[@rsdna9698]

@@HunterSkiff Bullshit, why would you randomly reply to a comment from over a year ago with unsubstantiated bs. Why would and EGR reduce EGT's?

[@mattreb5748]

I'm so keeping my LML lol

[@Shad0wC0mpany2]

Matthew Rebecchi Exactly what I though to myself. Now if only DT can recommend a great, reliable aftermarket Garrett for the 2016 LML, then I’d be on my way to the bank!

[@Duramaxtuner]

@@Shad0wC0mpany2 Done: duramaxtuner.com/turbo-systems/lml-stealth-67g2-turbo.html

[@Duramaxtuner]

@@Shad0wC0mpany2 Also see: duramaxtuner.com/turbo-systems/stealth-64-vvt-lml-1089.html

[@Duramaxtuner]

@@Shad0wC0mpany2 Just in case you want to go Twins with a 15 or 16 model we got that too: duramaxtuner.com/turbo-systems/dt-lml-twin-turbo-kit-2015-2016.html

[@Duramaxtuner]

@Dobbies Revenge If your truck is just a daily driver it comes down to preference. Most people will tell you that ownership cost of a diesel is a little higher than an equivalent gas truck. However, if you want gobs of low end torque and a potential for a 500+ RWHP truck the diesel is going to be for you.

[@timothybayliss6680]

I know this is an older video, but you state the factory egt cut is 1530f. I don't believe that to be the case, I'm pretty sure it's 1471f. I know it doesn't sound like much but a material engineer will be able to tell you how much percentage strength your losing and why the factory calibration cuts fuel at anything over that temp.

[@procharged67]

thanks nick !

[@scidav87]

Very excellent video. Thank you.

[@cub8314]

You are clearly a smart man. Now I don't want to start a Holy war, but do you have any colleagues on KZbin that are tuning and testing the way you do but on a power stroke

[@Duramaxtuner]

We tune Power Strokes. kzbin.info/www/bejne/hYnJfqqpg6d8ias

[@AngelIRQ0508]

Woot woot 🙌🏼

[@matthewcampbell5646]

Where is the hidden bracket??????

[@wcsoblake85]

I am no way as experienced as you guys at duramax tuner but, It sounds like some nitrous is needed to keep the EGT down or maybe a meth system. Or at the least a nitrous ring to spray on the intercooler.

[@bbdl7042]

Blake Ferrell open up the exhaust and intake I bet it be fine.

[@Duramaxtuner]

We generally shy away from injectables on street driven trucks but some solid R&D would be interesting.

[@austintysver7366]

1530 is the shut down temp on these trucks? That seems to be extremely high considering I set my defueling on my truck at 1250-1350. Whenever people ask what is safe these are the temps I tell them to keep in mind. Are these higher temps around 1500 still considered safe?

[@TheMEXICANBEEF]

Great questions. Is the 1530 the limp mode temp, or is that when the computer starts defueling? I would like to know when heat soak becomes a problem. I've always been told to keep my 04 cummins under 1300 while towing or stuff can begin to melt. I would be very impressed if these new duramax engines can withstand 1500* towing temps.

[@butchcassidy5398]

BANKS GOT YOU WHOOPED BRO!!!

[@Duramaxtuner]

?? We have actually met Gale and think he is a great guy with an awesome product line. If you prefer the derringer we can honestly say that you should go for it. Just to be clear though, our Custom Tuning is very different than a wired in external module. We are able to include a much higher peak horsepower and torque output that is made capable by our extensive ECM/TCM mapping. Here is a video we did with Gale before custom tuning was available: kzbin.info/www/bejne/g3nQiIJ-psesjZY

[@Icutmetal]

Butch Cassidy In what way? And why are you yelling?

[@dylankeen2203]

The hood on the l5p trucks is the cats ass. I gotta have it.

[@karlvancour5309]

Why is it every talks about the lbz and the l5p but not the lml

[@Duramaxtuner]

We had a lot of stuff back when it was a newer platform. We do love the LML. Folks just like the LBZ due to no DPF. the L5P due to it's power. The LML is a great platform.

[@Bradygoodz]

Excellent!

[@Mr.Killswitch]

Great info!

[@ericronquillo1365]

Eddie which one is the eco tune on the lml I have the ppei on mine

[@seanmclaughlin7415]

Can you replace the EGR with water/Meth injection and still run the DEF system? I would think it would cool much better.

[@Duramaxtuner]

We are a little skeptical of this, but time will tell if it can be done.

[@seanmclaughlin7415]

Not sure about the “hard science” but I would think it would cool the combustion chamber immensely compared to using exhaust. Plus, you do not kill power with exhaust. Also, the water/meth would help clean the exhaust system. I have been thinking about this for a while now, Ha!

[@scotthahn9068]

I'lI keep my 05 LLY.

[@scottsmith6571]

My dad has about 680k on his o5 lly

[@scottsmith6571]

I wrecked my 05 got a 15 did full delete 5 inch exhaust efi Cory tune about 520 rwhp

[@larryj8924]

@@scottsmith6571 Mine is 04 LLY with very low mileage all stock. Your dad has serious mileage, has he kept it stock to achieve 680k? How much towing does he do? Thanks

[@stephensoemann3576]

I count 13 exhaust turbo veins.

[@HuntsT]

Good catch. There is 13.

[@justin83mason]

So I should stick with my lml

[@Duramaxtuner]

Depending on what you want out of a truck and what your budget is for upgrades, modifying your current LML may be a good option.

[@GIGABACHI]

Honest question to those on the know: Why hasn't GM gone to reverse flow flow heads ? My take away at the end: Needs a BIGGER turbo to go beyond 500hp.

[@moose5.9]

Ppei has dyno numbers over 570whp if my memory serves me right, but like nick said I'm sure it was very hot 1700+ degrees egts

[@bbdl7042]

They’ve made 570 with just tune no delete. down/up pipe, and almost everything else was stock

[@Duramaxtuner]

Correct, 570 with an all stock truck has been hit but the EGTs and other indicators were well past safe (at least in all of our testing). As far as why GM doesn't go to reverse flow heads, our guess is that they don't see a need for more than 500 RWHP.

[@teddyjakeddy975]

to make your vids even more informative, post in detail, the cost of the mods and tunes. If it applies.

[@matixxbox]

Diesel engines do not have cats ! it's called a DOC diesel oxidation catalyst it's for the dpf

[@Duramaxtuner]

Good catch! :)

[@fernandolopez-mu1yz]

Good luck if you have big tires will set whole bunch of codes.... crankshaft reluctor is in the back of the engine and will cause vibration.... smh.... every day learning some thing new with l5p

[@hockeyplayer0241]

Engineering nightmare

[@khenanbedingfield2916]

Jesus get that cat outta there

[@21armyn]

hello $6000 delete..