2024 L5P Turbo vs 2023 L5P Turbo Comparison

Nick Priegnitz, CEO Of Duramaxtuner, got his hands on a stock 2024 L5P turbo. In this episode of Diesel Insights, he discusses all the differences you can see between the 2024 and 2023 stock turbochargers on the 6.6L Duramax. There is a lot to break down here, so join us as we explore the many differences in these turbos!

[@kevinkalivoda3442]

Always a pleasure hearing Nick talk tech. Techical speak with just enough laymen terms to keep me understanding.

[@Duramaxtuner]

Thank you!

[@demuntresmith6666]

Mr Gale bank jr love your information.

[@Duramaxtuner]

Thanks for watching!

[@chrismiller1919]

Wonder if the new design helps with exhaust braking? That’s my only complaint on my 2022, exhaust brake is very weak.

[@Duramaxtuner]

We have heard that compliant on the stock L5P.

[@Haya3usaGsxr]

It can be mod for have ballbearing?

[@moparman2500]

Great video and great explanation 👍

[@Duramaxtuner]

Glad you liked it!

[@DirtyMoneyPullingVideos]

Looks like they have some good power potential!

[@nickpriegnitz5895]

That was my first thought, factory guys left us some extra meat on the bone 🍖

[@Duramaxtuner]

We're looking forward to taking a bite out of some of that meat.

[@jessevalot3427]

My stock ‘24 duramax has the worst turbo lag I’ve ever experienced and has bad compressor surge frequently. Has less than 2000 miles on it and is completely stock. Heard anything similar about these trucks?

[@Upsidedownfoodpyramid]

Do you have any real world numbers like in the mountains with a trailer comparing the stock turbo vs 64 vs 67 passing power? With my 2023 6.6L duramax I don’t struggle going up hills but passing power behind slow semi’s it feels like a lot of effort even though I’m not exceeding the nameplate. It would be nice to see everyday driver without a trailer and with trailer before and after fuel and DEF economy. EGT improvements? Do assume everything is stock? If so it would be nice to see this same test again with the WC Fab stage 3 air kit installed as well.

[@jmg_2_slow74]

I have one question why gm can’t get there exhaust braking like the Cummins trucks im a GM guy but I just wish there exhaust braking was as good as the Cummins engines .

[@Duramaxtuner]

Honestly, it's why we incorporate it in our tuning. We don't know why they don't from factory.

[@LowOnCash]

Great comparison on the two turbos thanks so much for sharing I just subscribed. Regretfully GMC totally screwed up the exhaust brake on the 24's its now what they call a smart exhaust brake but it totally retarded in its operation. Unlike past brakes which engaged as you let off the throttle, you now have to hold the brake for the exhaust brake to engage. In addition, it does not work in manual mode on the the transmission. Many drivers myself included only use manual shifting when pulling loads in the mountains. Finally, the brake does not kick out, it might take up to a few minutes for the processor figure out the brake is off and shift back into the correct gear so it remains in a lower gear what seems for ever. Finally, In your opinion what percentage of exhaust braking does the turbo contribute to overall exhaust braking on the 6.6. Many thanks Mike

[@Duramaxtuner]

@LowOnCash To be honest we don't really know. Conventional engine braking (using downshifting to increase RPM without adding additional fuel or air) can take on a significant amount of the braking energy required to stop a truck. Probably somewhere between 50-80%. So with that in mind, I would say you should be able to receive slightly less absorption from your turbo brake considering it is also applying the conventional brakes at the same time. If i had to guess i would say it provides about 40-60% of the energy absorption if used effectively.

[@johnnystanley4469]

Great tech video

[@Duramaxtuner]

Glad you enjoyed it

[@HPL5P]

Are you going to build a 15 mm version of that to melt down also or go straight a 12mm cage?

[@Duramaxtuner]

There's definitely more R&D to come with this turbo. We have noticed that vane cage opening size plays a large roll in turbo efficiency and efficiency range. We are constantly working to optimize and improve the upgraded components that we put in our turbos. So no matter changes we make you can be sure that we will be putting what we consider to be the best parts possible in all the new 2024 housings.

[@beowulf885]

Has the diameter of the up-pipes from the exhaust manifold to the turbo increased? From what I understand factory up pipes are super restrictive on the l5ps.

[@Duramaxtuner]

Will report back....

[@jamms2966]

@@Duramaxtunerwhat did you find out?